DaniWeb IT Discussion Community - JSP

retrieving value from a jsp file.

singju — Fri, 06 Nov 2009 07:36:42 GMT

hello everyone,
i need 1 help.
i am having 3 ".jsp" files : x1.jsp,x2.jsp and x3.jsp. in x1.jjsp i am having a combo box, from the combo box i am selecting 1 value.
there is a submit button below it. i am using "form method = post
action=x2.jsp". the value which i am selecting from combo(of x1.jsp), i am retrieving the value in x2.jsp by "request.getParameter("variable_name");"

but how to retrieve that value which i am selection from combo in x3.jsp

please send me the code for this.

thanks in advance

Problem libs struts not recognize

PAPISSANT — Thu, 05 Nov 2009 14:17:41 GMT

I am developping an JEE application and i don't understand why this lines are not recognize by eclispe. I have import the library struts. If someone has an idea.... thanks

<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean" %>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html" %>

<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic" %>

Layout template

ibanez270dx — Thu, 05 Nov 2009 04:18:39 GMT

Hey guys,
I'm currently learning JSP and Java using Netbeans, and I was wondering if there was an easy way to create a web template layout. For example, using a single header, footer, and navigation bar for all pages. In Ruby on Rails, there is a "layouts" view, which you can define an .rhtml page and simply put the yield tag, <%= yield %> . Once this is done, all of the views you create will simply append the layout where the yield tag is. Is there something similar to this that I can use for a Java Web App?

Thanks,
- Jeff Miller

Problem in running JSP

shepon086 — Wed, 04 Nov 2009 15:35:45 GMT

hi,
i am new in java web application. i am working with eclipse 3.5 and tomcat 6. tomcat is working with eclipse very fine. but when i am trying to run jsp code, i am getting the following message from java virtual machine launcher,

could not find the main class: org.apache.jasper.JspC. program will exit.

can anybody say, what is the problem and how can i solve it.

hi~need some help~

hanzooi — Wed, 04 Nov 2009 09:13:47 GMT

hey guys, i'm new here!
i would like to know
how to code the "Add to cart" ?
can someone help me please?

send a function in a JSON through java

santiagozky — Tue, 03 Nov 2009 18:55:31 GMT

Hello everyone,

first of all, I dont know if this should be in the java or the jsp forum. I put it here since is a web related question.

I am making a report module for a web page using java. For this I will use a jquery plugin called datatables (I'm not sure if it's allowed to link to it). The point is that I need to generate a json string dynamically in order to get my reports.

The problem is that along with my data I will also have to send some anonymous functions in the json. I have used some libraries to convert java objects to a json string but nothing on how to send a function.

The jsons will look something like this:

{

"aoColumns": [        

        { "sTitle": "Column 1" },

        { "sTitle": "Column2" },

        { "sTitle": "Column3" },

        { "sTitle": "Column centered", 

                     "sClass": "center" },

        {"sTitle": "Column rendered",

                  "sClass": "center",

          "fnRender": function(obj) {

                var sReturn = obj.aData[ obj.iDataColumn ];                if ( sReturn == "A" ) {

                        sReturn = "A";

                }

                return sReturn;

                }

        }

        ]

}

I know I can generate it manually as a string, but that seems quite complex and I would like to keep that as a las resort.

Anyone knows a library that can generate javascript functions from java?

Thank you for any help you can provide me. This place looks quite nice btw

Combobox Selection From Session Attribute

AshtonHogan — Tue, 03 Nov 2009 14:22:28 GMT

Hi,

I would like to have a Combobox where the selected item is the value set in the session attribute.

For example:
HTML:

Javascript:

document.getElementbyName('myCombo').selectedValue = session.getAttribute("choice");

Thanks,
-Ashton.

JSP Page Interaction

AshtonHogan — Tue, 03 Nov 2009 10:53:29 GMT

Hi,

I'm trying to figure out how to pass parameters across JSP pages without using links. For some reason, I can only get null across...

Here is my code:
Page 1



    

        

        Test Page

    

    

        

            

        


        <%

            out.println(request.getParameter("tableSelect"));

        %>

Page 2:



    

        

        Test Recieve Page

    

    

        <%

            out.println(request.getParameter("tableSelect"));

        %>

Thanks,
-Ashton

how to increase users in tomcat-users.xml file automatically not manually

alsoumhi — Tue, 03 Nov 2009 10:16:55 GMT

Hi guys, I am trying to restrict users to access the sources of my application so I have used tomcat-users.xml file , but later I will be facing a problem which is how if I have a lot of authorized users , so I will add each one to that file manually , i think it is not efficient way . Furthermore , I am having an application that lets users used its resources based on the user account in database. if the user has an account in database he/she can login to the application and use the resources , so how can I use this idea with tomcat-users.xml just to avoid the increase number of authorized users in tomcat-users.xml
I hope you understand my question . I don't mind to repeat it again if you have any question
please help me guys because I want to prevent unathorized users to access directly using URL in my application
thank you very very very much

Help with GET method please

kellybaz — Mon, 02 Nov 2009 21:10:24 GMT

Hello- I am pretty new to JSP

I need some help with a GET method. Apparently IE has a URL length limitation..

IE0- "If you are using the GET method, you are limited to a maximum of 2,048 characters, minus the number of characters in the actual path."

By sending all the variables I was hitting the IE browser limitation on length of GET parameters (URL length). So I attempted to shorted it up a bit by taking out some variables that are sent in the handoff template. It's no longer a long url issue, but it still does not seem to work right. Can someone take a look at my code and see if I am doing something wrong?

Thanks!





                <%



                Enumeration paramNames = request.getParameterNames();



                while(paramNames.hasMoreElements())



                {



                        String name = (String)paramNames.nextElement();



                        //if(name.equals("url") || name.equals("id"))



                        //{



                        //      continue;



                        //}



                %>



                



                <%} %>



                <%



                if (processBean.getProcess() != null) {



                %>



                



                



                



                



                



                <%--



                        " value="">



                



                --%>



                                       



                        <%     



                                if (!operandBean.label.equals ("CustNotifyMessage") ||



                                    !operandBean.label.equals ("_customCompletedInstanceLink") ||



                                        !operandBean.label.equals ("_customCompletedWorklistLink") ||



                                        !operandBean.label.equals ("_customInstanceLink") ||



                                        !operandBean.label.equals ("CustNotifySubject") ||



                                        !operandBean.label.equals ("_EmailToPrimaryContact") ||



                                        !operandBean.label.equals ("UrAnsweredMessage") ||



                                        !operandBean.label.equals ("UrAnsweredSubject"))



                                {%>



                                                        " value="">



                               



                                <%} %>

javaBean

Andrew Docherty — Sat, 31 Oct 2009 21:38:04 GMT

Hi,
I am new to jsp, and Beans. I have been working on this piece of code, for the past week and I am no further along :'(

I am using Tomcat Apache 6.0
In the ROOT folder I have a simple page test1.jsp:

package user;

<%@ page contentType="text/html; charset=utf-8" language="java" import="java.sql.*" errorPage="" %>





<% userDetails.getData(); %>









hello







test 1

I have a java class in: WEB-INF\classes\user called UserDetails

Which I have attached.

I keep getting the error:

javax.servlet.ServletException: java.lang.NoClassDefFoundError: user/UserDetails (wrong name: java/user/UserDetails)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:275)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

As I said I have been working on it, and gotten no where, someone please help!!!

Thanks, Andrew

Attached Files

UserDetails.java (2.1 KB)

Session.isNew() problem

blindkilla — Sat, 31 Oct 2009 21:02:40 GMT

When my servlet creates a session, even if it is the first time running the servlet, the session.isNew() returns false. I checked to make sure the session ID's are different each time I run it and they are, yet isNew() still returns false.

I'm trying to do the following in my servlet:

HttpSession session = request.getSession(true);

if (session.isNew())

{

                ...do something...

}

It never gets into that if statement because it always returns false :S

Any help would be appreciated.

JSP Expression Languages (EL) doesn't work in Firefox1.5.0.5

vsanandan — Sat, 31 Oct 2009 08:45:34 GMT

Hi,
I am learning JSP now. The following program doesn't work in my Linux system's Mozilla firefox. Any help to fix this problem is appreciated.



Using JSP EL Operators



 Using JSP EL Operators



















  13 + 2 = ${13 + 2}  
  13 - 2 = ${13 - 2}  
  13 * 2 = ${13 * 2}  
  13 / 2 = ${13 / 2}  
  13 % 2 = ${13 % 2} 
  
  13.24 + 2 = ${13.24 + 2}  
  13.24 - 2 = ${13.24 - 2}  
  13.24 * 2 = ${13.24 * 2}  
  13.24 / 2 = ${13.24 / 2}  
  
  true and false = ${true && false} 
  true or false = ${true || false} 
  not false = ${! false}

Here expressions like ${13+2}, ${true && false} etc. are not evaluated, but displayed as given in code.

help me with the following JSP code

romilc — Sat, 31 Oct 2009 00:37:51 GMT

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

    pageEncoding="ISO-8859-1"%>



<%@page import = "javax.swing.*" import="DefaultNamespace.user"%>







Play Tic-Tac-Toe







        align="center"> 

        

                

        

        

                

        

        

        

                

        

    
   

                 

                 

                Tic Tac Toe Game

 

                Click on the box to play the game



                

                




                        value="     "



                        onClick=valChange()> 

                


                        onClick=""> 

                


                        onClick="">
 

                


                        onClick=""> 

                


                        onClick=""> 

                


                        onClick="">
 

                


                        onClick=""> 

                


                        onClick=""> 

                


                        onClick=""> 

                        



                        


                        



                        

                        
                        onClick="this.disabled=true,tic.pl2.disabled=false">

                        

                        
                        onClick="this.disabled=true,tic.pl1.disabled=false">

I am new to JSP..
the code works as per expected when the button pl1 is disabled i.e. it displays X on clicking sqr1..but it doesnt display 0 on clicking sqr1 when button pl2 is disabled.
so wats wrong in the above code

response.sendRedirect()

AshtonHogan — Fri, 30 Oct 2009 13:17:03 GMT

Hi,

I would like to know if it's possible to specify the "target='FrameName'" in response.sendRedirect("Home.jsp") by any chance?

I tried this:

        

        

            <%

        if ((String) request.getSession(false).getAttribute("sessionStatus") == null) {

            response.sendRedirect("Login?pageTimeout=yes");

        }

            %>

But it doesn't work... The target remains the same.

Thanks,
-Ashton.

XML parsing in JSP

selvasmartmccan — Fri, 30 Oct 2009 09:32:01 GMT

I want to use XML file to insert some data and want to upload that data into my JSP page. That is "XML parsing in JSP" but i tried using JDOM parser but i cant able to get ... any one know dis???????

how can i run jsp

sridhar123 — Thu, 29 Oct 2009 17:14:40 GMT

i installed blazix server in my pc ,but i cant able to run my jsp program please help me

JSP - Ping a Port

AshtonHogan — Thu, 29 Oct 2009 14:51:11 GMT

Hi,

I would just like to know if it's possible to ping a certain port from a jsp page.
For example:

If I had a Apache_Status.jsp on my machine and I wanted to ping it on another machine at:
123.456.78.90:8080

And I had a Glassfish_Status.jsp on my machine and I wanted to ping it on another machine at:
321.654.87.09:8484

Would this be possible?

Thanks,
-Ashton.

URL security in jsp how?

alsoumhi — Thu, 29 Oct 2009 09:24:34 GMT

Hi guys I am trying to prevent user to access directly using URL to my application , so in order to do that I have used security constraint in web.xml file and it works with me . my problem is in my application I am using href and redirect method in my servlets to redirect a user , here the server will not redirect a user to required pages but redirecting a user to error page "access deny" , it is like a user accessed directly from URL

please help me how to solve this problem.

I have seaeched about how to secure your pages from accessing directly using URL which is through putting all the pages under web-inf directory , I hope if you tell me how to do that , what changes i have to do in my web.xml

(newline) problem with in text file

alsoumhi — Thu, 29 Oct 2009 08:20:25 GMT

Hi experts, I am having very small error with my attachment file.
the thing is , if I let my servlet send e-mail fwith attachment file exists on my computer and that file I edit by myself , there is no error with my file , so if i download it from my e-mail and open it again i will find it as I sent it. however , if that file is created by program and let my mail servlet to send an e-mail with that file as an ttachment file , then if i download it from my mail , i will not get it as it is edited by the program
let' say the program edits the file like this:
hello how are you guys
let's see if the file works or not
this is as a test only
thank you very much

I will get this after download:
hello how are you guys? this is as a test only ?thank you very much
actually this character( ? )is not what I saw , just to let you understand me , because I couldn't copy paste the real character, and if I do so it will give me here as new line
do you know what is the solution , please help me guys,
last thing if I would create (doc or pdf) file how can I do that instead of text file please help me
goood luck
thanks

Login Validation

camilia — Thu, 29 Oct 2009 01:49:33 GMT

hi, does anyone know how to do login validation using java...here is my code,bt i cant validate if the username and pw typed are the user in the database.

(The java code that i wrote)

public int Login(Friend fr) throws EventException

        {

                Connection con = null;

                System.out.println("Database connection succeeded");

                String sql = "SELECT * from CUSTOMER WHERE userName =? and password =?";

                PreparedStatement ps = null;

                

                try {

                        con = getConnection();

                        ps = con.prepareStatement(sql);

                        ps.setString(1, fr.getUsername());

                        ps.setString(2, fr.getPassword());

                        System.out.println("at select statement");

                                                ps.executeUpdate();

                        

                } catch (SQLException e) {

                        throw new EventException(e.getMessage());

                }

                finally {

                        try {

                                if (ps   != null) ps.close();

                                if (con  != null) con.close();

                        } catch (SQLException e) {}

                }

                return 1;

        }

(The java servlet to link to the java class)

package sg.edu.nyp.fyp;



import java.io.IOException;

import java.io.PrintWriter;



import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;



/**

 * Servlet implementation class AddUserServlet

 */

public class LoginServlet extends HttpServlet {

        private static final long serialVersionUID = 1L;

       





        protected void processRequest(HttpServletRequest request, HttpServletResponse response)

      throws ServletException, IOException {

                  

                          Friend fr = new Friend();

                          fr.setUsername(request.getParameter("username"));

                          fr.setPassword(request.getParameter("password"));

                  

                        PrintWriter out=response.getWriter();

                        

                        

                        System.out.println("servlet loaded");

                        //Get the EmployeeManager object

                        EventBL ebl = EventBL.getInstance();

                        //Save the newly created EmployeeManager object

                        try {

                        ebl.Login(fr);

                        out.print(" User Sucessfully Found");

                        }

                        catch(EventException ex) {

                                //Handles errors

                                out.print("error");        

                                return;

                        }                         

          }

                        

          // 

            /**

             * Handles the HTTP GET method.

             * @param request servlet request

             * @param response servlet response

             * @throws ServletException if a servlet-specific error occurs

             * @throws IOException if an I/O error occurs

             */

            protected void doGet(HttpServletRequest request, HttpServletResponse response)

                    throws ServletException, IOException {

                processRequest(request, response);

            }



            /**

             * Handles the HTTP POST method.

             * @param request servlet request

             * @param response servlet response

             * @throws ServletException if a servlet-specific error occurs

             * @throws IOException if an I/O error occurs

             */

            protected void doPost(HttpServletRequest request, HttpServletResponse response)

                    throws ServletException, IOException {

                processRequest(request, response);

            }



            /**

             * Returns a short description of the servlet.

             * @return a String containing servlet description

             */

            public String getServletInfo() {

                return "Short description";

            }// 

        }

can anyone help me check which part did i do wrongly? thanks!!!

Database connection via method call

vishalanuj — Wed, 28 Oct 2009 08:47:28 GMT

Hi,I am new to struts.i want to make a database connection with the help of a method call in some other class.I am not able to make the method for the database connectivity.Please if someone could help me.

MVC help

aredroses — Wed, 28 Oct 2009 02:53:11 GMT

Hi,
considering the tutorial given by peter_budo,
if manager wants to assign a new course to a teacher, how would he be able to assign that ?
I have designed the course page in which students can apply but how a manager can assign a teacher to that course ??

Please help
Thanks in advance

request scope

hajjo — Mon, 26 Oct 2009 18:45:23 GMT

Hello all I am using the request scope.

I have parent window, which opens a child window on button click.
Am using window.open

That child window opened is request scope. Problem is, on that child window there is a button.. say I write "greg" in the textbox and click the button its reset back to old value.
On every button click its considering it a new request.

whats the probleM?? Its not normal. I am thinking of doing session, and then on close of that child window invalidate the session??

code required

singju — Mon, 26 Oct 2009 07:05:28 GMT

Hello everyone,
I am new to JSP. Can any one help me how to implement "search" button in jsp, what i need is that i need one text box where i will write the name of the person whose details i need to search, then on clicking the search button the details of the person will be displayed in the next page.
Thanks in advance.

java servlets help???

ankiwalia — Sun, 25 Oct 2009 15:31:51 GMT

hey guys,
i'm new to java servlets..i have been making a website using java servlets on stock market and stuff...now what my query is that i want to retrieve data from database(ms-access) and display it on my html page....

i don't have much knowledge about html so i took a css template from internet and started working on it...what i have been trying to do is that i included all of the html tags in .java file(servlet) so that html page could be dynamic...

but this thing is very hectic...its giving me whole lot of errors..i mean i tried to include whole of the template in servlet programming...but lot of errors...

So can anybody please suggest me another method(leaving jsp) to display my data from database on html page using servlets or help me with my coding...i have attached the code with my post!!!!

Attached Files

portfolio.java (18.2 KB)

Unable to connect to tomcat through browser

deepak.marur — Sun, 25 Oct 2009 06:58:52 GMT

I have tomcat 6.0.18 running on my laptop. Tomcat is installed under my /home/xxx/bin directory. However, after I start tomcat, I'm unable to connect to tomcat through my browser but my eclipse is able to do so. I do not get any error message, the browser just keeps on trying.

I've reached a dead end trying to resolve this. Any ideas, anybody ??

Problem calling jsp files

ashishdmc4 — Sun, 25 Oct 2009 04:38:25 GMT

Hello everyone..

I have a problem in my project.
what i have done is when i login, if the username and password is correct it will redirect to a homepage which is in a new folder called private.
I have a logout link in that home page which refers to logoutpage in root directory(out of that private folder).
Now how do i link pages out of that private folder.

javascript inserting between jsp

rattcod — Thu, 22 Oct 2009 14:06:09 GMT

hi
i have a problem in running javascript code between jsp page..
lets below is my jsp body .



   

   hello

   <% System.out.println("hello"); %>

in the above code there is no problem in running javascipt .. it gives hi alert easily but.. for below



   

   hello

   <% System.out.println("hello"); %>

but if above i include any jsp forward page tag or sendRedirect function then this javascript does'nt run..
please help me
i m stuck with this problem..

thnx in advance

Multiple field validations using javascript

vishalanuj — Thu, 22 Oct 2009 09:25:41 GMT

<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>

<%@taglib uri="/WEB-INF/struts-html-el.tld" prefix="html_el" %>

<%@taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>

<%@taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<%@ taglib uri="/WEB-INF/c.tld" prefix="c" %>







   

   

       Listing all cities

           

   



   

     city List

         

          

                 

                 City: 


                 Pincode: 



                

                

                HomePage


          

          

          





















Enter your Account Number  







Enter Balance

it give this error---->

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: /moneyTransfer.jsp(22,0) Attribute bean invalid for tag text according to TLD
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:238)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:975)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:696)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1441)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Validator.validate(Validator.java:1475)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:214)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:470)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.

i have made the taglib entry in web.xml as follows....>



            /WEB-INF/struts-html.tld

            /WEB-INF/struts-html.tld

    

    

    

            /WEB-INF/struts-bean.tld

            /WEB-INF/struts-bean.tld

n aslo pasted struts-html.tld n struts -bean.tld in web inf folder.....

PLEASE Help

need help in scheduling the task of project(online compiler)

muusa — Tue, 13 Oct 2009 18:49:38 GMT

hi friends,
i am doin a project named online compiler.
the basic idea is to compile a program online.
i am well acquinted with core java but not with web technologies.
i know the basics of jsp n planning to do the project in jsp.
i know how to compile source inside another java code
example

import javax.tools.JavaCompiler;

import javax.tools.ToolProvider;

public class CompileHello {

    public static void main(String[] args) {

        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

        int result = compiler.run(null, null, null,"src/hello.java");

        System.out.println("Compile result code = " + result);

    }

}

the estimated time to complete the project is abt 1 month .
i need all ur guidance to properly guide me through or give me a through idea of how this thing could be done

Adding form validation for numeric values

vishalanuj — Tue, 13 Oct 2009 12:04:48 GMT

<%-- 

    Document   : AddCity

    Created on : Oct 6, 2009, 9:14:52 PM

    Author     : Vishal

--%>



<%@page contentType="text/html" pageEncoding="UTF-8"%>


   "http://www.w3.org/TR/html4/loose.dtd">



<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>



    

        

        JSP Page

    

    

        

        

        HomePage


                Cityname:

                

                PinCode:

JSP and Calendar View

silhoutte — Tue, 13 Oct 2009 11:26:28 GMT

Hey,

Currently I am doing an assignment building an enterprise web application. One of the specification states that I need to make a calendar view of a booking system in JSP. Is there a library out there that help me doing this?

Calendar view here is a page that represents a month and it has a table with 31 cells in it representing 31 days. Inside a cell, if there is a booking, then display the booking title.

What I'm looking for here is just a library that can handle the presentation of the data. The collecting data process itself is not a problem for me.

Technology used
- EJB
- JPA Hibernate
- Struts
- Netbeans and Glassfish :)

Any idea? Thanks

java.sql.SQLException: Column 'XXXXXX' not found.

vishalanuj — Tue, 13 Oct 2009 09:22:34 GMT

package Add;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;



import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;



import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionMapping;

import org.apache.struts.action.ActionForward;



public class AddSuccessAction extends Action 

{

        private final static String SUCCESS = "success";



        public ActionForward execute(ActionMapping mapping, ActionForm form,

                        HttpServletRequest request, HttpServletResponse response)

                        throws Exception 

{

                MyBean bean = (MyBean) form;

                String cityName = bean.getCn();

                String pincode = bean.getPc();

                

                Connection con = null;

                ResultSet rs = null;

        PreparedStatement stmt = null;

                

                String connectionURL = "jdbc:mysql://localhost:3306/city"; 

                

                try 

                { 

                    Class.forName("com.mysql.jdbc.Driver"); 

                    con = DriverManager.getConnection (connectionURL,"root","welcome12#"); 

                    String sq = "SELECT city_name,pincode from data ";

                        stmt = con.prepareStatement(sq);

                        rs = stmt.executeQuery();

                        boolean flag = false;

                        while (rs.next()) 

                        {

                                String pic = rs.getString(pincode);

                                

                                if(pic=="pincode")

                                {

                                        System.out.println("Pincode already exists");

                                        flag = true;

                                }

                        }

                        if(!flag)

                        {

                                String sql = "INSERT INTO city (city name,pincode) VALUES('"+cityName+','+pincode+"')";

                                stmt = con.prepareStatement(sql);

                                stmt.executeUpdate();

                        }

                }

                catch (SQLException e) 

                { 

                    e.printStackTrace(); 

                } 

                catch (Exception e) 

                { 

                    e.printStackTrace(); 

                } 

                finally 

                { 

                        stmt.close();

                        con.close(); 

                } 

                return mapping.findForward(SUCCESS);

        }



}

checkbox value

rp_prasanna — Tue, 13 Oct 2009 07:39:38 GMT

i have struts html based checkbox

Yes

when i submit the form after checking the checkbox the bean value should get "Y" value.
Since the checkbos is disabled the bean value becomes null even after i check the checkbox

do any one know a solution for this problem

Displaying the web sever ip address

dombit — Sun, 11 Oct 2009 00:21:28 GMT

Ok, I use apache web server to host a club website within a school network. Now I need a script to display the ip address of my web sever because it is constantly changing. Is there scrip that will perform this function.

note: the site only works within the school network and can not be acssesed out side of our network.
tankyou

problem in comparision of dropdown value and database vale

shuchi.vishnoi — Fri, 09 Oct 2009 12:49:30 GMT

There is a jsp page on which I have to access the selected value from a dropdown list and then compare it's value with the field 'role' stored in mysql database.
I have to comapre both values to authenticate the user. I can access the role from dropdown list but I am unable to compare it with role stored in database.

This is the source code of jsp page

login.jsp-



Login Page











Login Authentication






        

                

                

        

        

                

                

        

       


        

                

          

      






Authentication.jsp---
<%@ page import="java.sql.*" %>

<%@page contentType="text/html" pageEncoding="UTF-8"%>


   "http://www.w3.org/TR/html4/loose.dtd">

<%

String connectionURL = "jdbc:mysql://localhost:3306/user_tbl?user=,password=";

Connection connection = null;

Statement statement = null;

ResultSet rs = null;

response.setContentType("text/html");

%>





    

        

        JSP Page

    

    

        <%

        String userName=new String("");

        String password=new String("");

        String role = new String("");

        boolean flag = false;



        Class.forName("com.mysql.jdbc.Driver").newInstance();



        connection = DriverManager.getConnection(connectionURL, "root", "1234");

        statement = connection.createStatement();

        statement.executeQuery("select user_name,password,role from login");

        rs = statement.getResultSet();



        

        String role1[] = request.getParameterValues("role");



        while (rs.next()) {

        userName=rs.getString("user_name");

        password=rs.getString("password");

        role = rs.getString("role");

                          

        if(userName.equals(request.getParameter("username")) && password.equals(request.getParameter("password"))&& role.equals(request.getParameterValues("role")))

            flag = true;

        //session.setAttribute("userName",rs.getString(2));

       

}

       

        if(role1!=null){

        for(int i=0; i
        {

            if(role.equals(request.getParameter("role")))

            out.println("you are:"+role1[i]);

            }

        }

        if(flag==true)

            {

            //out.println("User Authenticated");

           response.sendRedirect("welcome.jsp");

            }

        else{

            //out.println("You are not an authentic person");

            response.sendRedirect("error.jsp");

            }

        

              rs.close ();

        statement.close ();

        %>

    


.jsp file
neeraj20gupta — Fri, 09 Oct 2009 06:13:09 GMT
i m a stater with jsp .... have installed Tomact 5.0.28. Its displaying server page when i type http://localhost:8080



now i have made a simple context.jsp file---->



 



<br />
Context<br />






<%

out.println("First JSP APPLICATION");

%>





 

placed it in a folder ch in webapps folder of tomcat...



when i try to run it by

http://localhost:8080/ch/context.jsp



it shows the error



type Status report



message /Context.jsp



description The requested resource (/Context.jsp) is not available.







please help.... 

jsf navigation&database connection
ceyesuma — Fri, 09 Oct 2009 03:42:57 GMT
Topic

The topic of this question is: JSF_navigation and database connection

Hello and Thank you in advance for any assistance.



 

System info:



Netbeans6.7.1,jsf1.2,two MySQL databases.(one for login one for searches)



 

The purpose of this post is: 



Try to get the login jsp to switch to the next page and understand how to connect to the database to simulate a login .





 

The functionality of this code is:  



I have two databases one for login and one for finding contents of several music book records. Searches performed via artist or song. The first order of operation is Login.jsp which submits the user name “uid” (user Name and password are the same) and are validated simple uid>8 characters. Upon login the login.jsf page should navigate to the success.jsp or fail.jsp via faces-config file . The login.jsp submits to the controller, the controller calls the model to validate and connect to the splashbookdb_user database. that’s all for now.

(the design of the code does absolutely nothing now.  I just can’t get the connection worked out.) 



(jsf pages,SplashbookController.java,SplashbookModel.java and Content.java (entity).



I will be updating the splashbook project periodically at:

http://cid-b5cb457363230793.skydrive...20-%20Copy.zip



The errors related to this code are:









Error description: Mozilla firefox



 ------------



HTTP Status 500 -



type Exception report



message



descriptionThe server encountered an internal error () that prevented it from fulfilling this request.



exception



javax.servlet.ServletException: #{SplashbookController.ValidateUser}: java.lang.NullPointerException



root cause



javax.faces.FacesException: #{SplashbookController.ValidateUser}: java.lang.NullPointerException



root cause



javax.faces.el.EvaluationException: java.lang.NullPointerException



root cause



java.lang.NullPointerException



note The full stack traces of the exception and its root causes are available in the Sun GlassFish Enterprise Server v2.1 logs.






Code description:faces-config.xml



 








    xmlns="http://java.sun.com/xml/ns/javaee" 

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd">

    

        SplashbookController

        controllers.SplashbookController

        request

    

    

        /login.jsp

        

            success

            /loginSuccess.jsp

        

        

            fail

            /loginFail.jsp

        

    









Code description:login.jsp



 <%-- 

    Document   : login

    Created on : Oct 7, 2009, 8:45:20 PM

    Author     : depot

--%>



<%@page contentType="text/html" pageEncoding="UTF-8"%>



<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>

<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>




    "http://www.w3.org/TR/html4/loose.dtd">





    

        

            

            splashbook Login Page

            

        

        

            


            




            

                

                    

                    

                    

                    

                    

                    

                

            





        

    









Code description:SplashBookController.java



 /*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */

package controllers;



/**

 *

 * @author depot

 */

import classes.SplashbookModel;

import entities.Content;



import java.sql.Connection;



public class SplashbookController {



    public SplashbookModel splashbookModel;

    public String uid;

    public String password;

    public String database;

   

    public int uidLength = 8;

    public String loginResult;

    public Connection conn;



    /** Creates a new instance of SplashbookController */

    public SplashbookController() {

    }



    public String ValidateUser() throws Exception {



        if (uid.length() >= 8) {

                database="splashbookdb_user";

                System.out.println("database name-------------->"+database+"<-------------------");

                splashbookModel.connectToUserDB(database);

                if(splashbookModel.getConn().equals(null)){

                    loginResult="fail";

                }else{

                    loginResult="success";

                }

        }

        System.out.println("loginResult-------------->"+loginResult+"<-------------------");

           return loginResult;

    }

    public String getLoginResult() {

        return loginResult;

    }



    public void setLoginResult(String loginResult) {

        this.loginResult = loginResult;

    }



    public String getPassword() {

        return password;

    }



    public void setPassword(String password) {

        this.password = password;

    }



    public String getUid() {

        return uid;

    }



    public void setUid(String uid) {

        this.uid = uid;

    }



    public int getUidLength() {

        return uidLength;

    }



    public void setUidLength(int uidLength) {

        this.uidLength = uidLength;

    }



   

}




Code description:SplashbookModel.java



 /*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */



package classes;



/**

 *

 * @author depot

 */

import controllers.SplashbookController;

import entities.Content;

import java.sql.Connection;

import java.sql.DriverManager;

public class SplashbookModel {



        

        public Connection conn=null;

        public StringBuffer buff=null;

        public String host="localhost";

        public String database;

        public String dbUserName="root";

        public String dbPassword="ceyesuma";

       

   

public SplashbookModel(){



}





   public Connection connectToUserDB(String database)throws Exception {

       System.out.println("splashbookModel.connectToUserDB()-------------->"+database+"<-------------------");

        try {

            buff = new StringBuffer();

            buff.append("jdbc:mysql://");

            buff.append(host);

            buff.append("/");

            buff.append(database);

            buff.append("?user=");

            buff.append(dbUserName);

            buff.append("&password=");

            buff.append(dbPassword);

            Class.forName("com.mysql.jdbc.Driver").newInstance();

            conn = DriverManager.getConnection(buff.toString());

            System.out.println("Connection URL: ----------------->" + buff+"<-----------------");

        } catch (Exception ex) {

            throw new Exception("An error occurred while attempting to connect to[" + buff + "]");



        }

        return conn;

    }



    public String getDatabase() {

        return database;

    }



    public void setDatabase(String database) {

        this.database = database;

    }



    public String getDbPassword() {

        return dbPassword;

    }



    public void setDbPassword(String dbPassword) {

        this.dbPassword = dbPassword;

    }



    public String getDbUserName() {

        return dbUserName;

    }



    public void setDbUserName(String dbUserName) {

        this.dbUserName = dbUserName;

    }



    public String getHost() {

        return host;

    }



    public void setHost(String host) {

        this.host = host;

    }



    public StringBuffer getBuff() {

        return buff;

    }



    public void setBuff(StringBuffer buff) {

        this.buff = buff;

    }



    public Connection getConn() {

        return conn;

    }



    public void setConn(Connection conn) {

        this.conn = conn;

    }

   

 



}


The Entities from db’s related to this code are:



User.java used to log in.

Usergroup.java used to log in and specify permissions.

Content.java used for searching.





Code description:Content



 /*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */



package entities;



import java.io.Serializable;

import javax.persistence.Basic;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.NamedQueries;

import javax.persistence.NamedQuery;

import javax.persistence.Table;



/**

 *

 * @author depot

 */

@Entity

@Table(name = "content")

@NamedQueries({@NamedQuery(name = "Content.findAll", query = "SELECT c FROM Content c"), @NamedQuery(name = "Content.findById", query = "SELECT c FROM Content c WHERE c.id = :id"), @NamedQuery(name = "Content.findByPublisherCode", query = "SELECT c FROM Content c WHERE c.publisherCode = :publisherCode"), @NamedQuery(name = "Content.findByBookIsbn", query = "SELECT c FROM Content c WHERE c.bookIsbn = :bookIsbn"), @NamedQuery(name = "Content.findByBookTitle", query = "SELECT c FROM Content c WHERE c.bookTitle = :bookTitle"), @NamedQuery(name = "Content.findByArtist", query = "SELECT c FROM Content c WHERE c.artist = :artist"), @NamedQuery(name = "Content.findBySong", query = "SELECT c FROM Content c WHERE c.song = :song"), @NamedQuery(name = "Content.findByPageNum", query = "SELECT c FROM Content c WHERE c.pageNum = :pageNum")})

public class Content implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id

    @GeneratedValue(strategy = GenerationType.IDENTITY)

    @Basic(optional = false)

    @Column(name = "id")

    private Integer id;

    @Column(name = "publisher_code")

    private String publisherCode;

    @Column(name = "book_isbn")

    private String bookIsbn;

    @Column(name = "book_title")

    private String bookTitle;

    @Column(name = "artist")

    private String artist;

    @Column(name = "song")

    private String song;

    @Column(name = "page_num")

    private Integer pageNum;



    public Content() {

    }



    public Content(Integer id) {

        this.id = id;

    }



    public Integer getId() {

        return id;

    }



    public void setId(Integer id) {

        this.id = id;

    }



    public String getPublisherCode() {

        return publisherCode;

    }



    public void setPublisherCode(String publisherCode) {

        this.publisherCode = publisherCode;

    }



    public String getBookIsbn() {

        return bookIsbn;

    }



    public void setBookIsbn(String bookIsbn) {

        this.bookIsbn = bookIsbn;

    }



    public String getBookTitle() {

        return bookTitle;

    }



    public void setBookTitle(String bookTitle) {

        this.bookTitle = bookTitle;

    }



    public String getArtist() {

        return artist;

    }



    public void setArtist(String artist) {

        this.artist = artist;

    }



    public String getSong() {

        return song;

    }



    public void setSong(String song) {

        this.song = song;

    }



    public Integer getPageNum() {

        return pageNum;

    }



    public void setPageNum(Integer pageNum) {

        this.pageNum = pageNum;

    }



    @Override

    public int hashCode() {

        int hash = 0;

        hash += (id != null ? id.hashCode() : 0);

        return hash;

    }



    @Override

    public boolean equals(Object object) {

        // TODO: Warning - this method won't work in the case the id fields are not set

        if (!(object instanceof Content)) {

            return false;

        }

        Content other = (Content) object;

        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {

            return false;

        }

        return true;

    }



    @Override

    public String toString() {

        return "entities.Content[id=" + id + "]";

    }



}




Code description:User.java(entity)



 /*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */



package entities;



import java.io.Serializable;

import java.util.Collection;

import javax.persistence.Basic;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

import javax.persistence.ManyToMany;

import javax.persistence.NamedQueries;

import javax.persistence.NamedQuery;

import javax.persistence.Table;



/**

 *

 * @author depot

 */

@Entity

@Table(name = "user")

@NamedQueries({@NamedQuery(name = "User.findAll", query = "SELECT u FROM User u"), @NamedQuery(name = "User.findByUid", query = "SELECT u FROM User u WHERE u.uid = :uid"), @NamedQuery(name = "User.findByPassword", query = "SELECT u FROM User u WHERE u.password = :password"), @NamedQuery(name = "User.findByFirstName", query = "SELECT u FROM User u WHERE u.firstName = :firstName"), @NamedQuery(name = "User.findByLastName", query = "SELECT u FROM User u WHERE u.lastName = :lastName"), @NamedQuery(name = "User.findByAddress1", query = "SELECT u FROM User u WHERE u.address1 = :address1"), @NamedQuery(name = "User.findByAddress2", query = "SELECT u FROM User u WHERE u.address2 = :address2"), @NamedQuery(name = "User.findByCity", query = "SELECT u FROM User u WHERE u.city = :city"), @NamedQuery(name = "User.findByPostCode", query = "SELECT u FROM User u WHERE u.postCode = :postCode"), @NamedQuery(name = "User.findByEmail", query = "SELECT u FROM User u WHERE u.email = :email"), @NamedQuery(name = "User.findByPhone", query = "SELECT u FROM User u WHERE u.phone = :phone"), @NamedQuery(name = "User.findByUserGroup", query = "SELECT u FROM User u WHERE u.userGroup = :userGroup")})

public class User implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id

    @Basic(optional = false)

    @Column(name = "uid")

    private String uid;

    @Basic(optional = false)

    @Column(name = "password")

    private String password;

    @Basic(optional = false)

    @Column(name = "firstName")

    private String firstName;

    @Basic(optional = false)

    @Column(name = "lastName")

    private String lastName;

    @Basic(optional = false)

    @Column(name = "address1")

    private String address1;

    @Basic(optional = false)

    @Column(name = "address2")

    private String address2;

    @Basic(optional = false)

    @Column(name = "city")

    private String city;

    @Basic(optional = false)

    @Column(name = "postCode")

    private String postCode;

    @Column(name = "email")

    private String email;

    @Column(name = "phone")

    private Integer phone;

    @Basic(optional = false)

    @Column(name = "userGroup")

    private String userGroup;

    @ManyToMany(mappedBy = "userCollection")

    private Collection usergroupCollection;



    public User() {

    }



    public User(String uid) {

        this.uid = uid;

    }



    public User(String uid, String password, String firstName, String lastName, String address1, String address2, String city, String postCode, String userGroup) {

        this.uid = uid;

        this.password = password;

        this.firstName = firstName;

        this.lastName = lastName;

        this.address1 = address1;

        this.address2 = address2;

        this.city = city;

        this.postCode = postCode;

        this.userGroup = userGroup;

    }



    public String getUid() {

        return uid;

    }



    public void setUid(String uid) {

        this.uid = uid;

    }



    public String getPassword() {

        return password;

    }



    public void setPassword(String password) {

        this.password = password;

    }



    public String getFirstName() {

        return firstName;

    }



    public void setFirstName(String firstName) {

        this.firstName = firstName;

    }



    public String getLastName() {

        return lastName;

    }



    public void setLastName(String lastName) {

        this.lastName = lastName;

    }



    public String getAddress1() {

        return address1;

    }



    public void setAddress1(String address1) {

        this.address1 = address1;

    }



    public String getAddress2() {

        return address2;

    }



    public void setAddress2(String address2) {

        this.address2 = address2;

    }



    public String getCity() {

        return city;

    }



    public void setCity(String city) {

        this.city = city;

    }



    public String getPostCode() {

        return postCode;

    }



    public void setPostCode(String postCode) {

        this.postCode = postCode;

    }



    public String getEmail() {

        return email;

    }



    public void setEmail(String email) {

        this.email = email;

    }



    public Integer getPhone() {

        return phone;

    }



    public void setPhone(Integer phone) {

        this.phone = phone;

    }



    public String getUserGroup() {

        return userGroup;

    }



    public void setUserGroup(String userGroup) {

        this.userGroup = userGroup;

    }



    public Collection getUsergroupCollection() {

        return usergroupCollection;

    }



    public void setUsergroupCollection(Collection usergroupCollection) {

        this.usergroupCollection = usergroupCollection;

    }



    @Override

    public int hashCode() {

        int hash = 0;

        hash += (uid != null ? uid.hashCode() : 0);

        return hash;

    }



    @Override

    public boolean equals(Object object) {

        // TODO: Warning - this method won't work in the case the id fields are not set

        if (!(object instanceof User)) {

            return false;

        }

        User other = (User) object;

        if ((this.uid == null && other.uid != null) || (this.uid != null && !this.uid.equals(other.uid))) {

            return false;

        }

        return true;

    }



    @Override

    public String toString() {

        return "entities.User[uid=" + uid + "]";

    }



}




Code description:Usergroup.java(Entity class)



 /*

 * To change this template, choose Tools | Templates

 * and open the template in the editor.

 */



package entities;



import java.io.Serializable;

import java.util.Collection;

import javax.persistence.Basic;

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

import javax.persistence.JoinColumn;

import javax.persistence.JoinTable;

import javax.persistence.ManyToMany;

import javax.persistence.NamedQueries;

import javax.persistence.NamedQuery;

import javax.persistence.Table;



/**

 *

 * @author depot

 */

@Entity

@Table(name = "usergroup")

@NamedQueries({@NamedQuery(name = "Usergroup.findAll", query = "SELECT u FROM Usergroup u"), @NamedQuery(name = "Usergroup.findByGroupid", query = "SELECT u FROM Usergroup u WHERE u.groupid = :groupid"), @NamedQuery(name = "Usergroup.findByGroupName", query = "SELECT u FROM Usergroup u WHERE u.groupName = :groupName")})

public class Usergroup implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id

    @Basic(optional = false)

    @Column(name = "groupid")

    private String groupid;

    @Basic(optional = false)

    @Column(name = "groupName")

    private String groupName;

    @JoinTable(name = "usergroup_mapping", joinColumns = {@JoinColumn(name = "groupid", referencedColumnName = "groupid")}, inverseJoinColumns = {@JoinColumn(name = "uid", referencedColumnName = "uid")})

    @ManyToMany

    private Collection userCollection;



    public Usergroup() {

    }



    public Usergroup(String groupid) {

        this.groupid = groupid;

    }



    public Usergroup(String groupid, String groupName) {

        this.groupid = groupid;

        this.groupName = groupName;

    }



    public String getGroupid() {

        return groupid;

    }



    public void setGroupid(String groupid) {

        this.groupid = groupid;

    }



    public String getGroupName() {

        return groupName;

    }



    public void setGroupName(String groupName) {

        this.groupName = groupName;

    }



    public Collection getUserCollection() {

        return userCollection;

    }



    public void setUserCollection(Collection userCollection) {

        this.userCollection = userCollection;

    }



    @Override

    public int hashCode() {

        int hash = 0;

        hash += (groupid != null ? groupid.hashCode() : 0);

        return hash;

    }



    @Override

    public boolean equals(Object object) {

        // TODO: Warning - this method won't work in the case the id fields are not set

        if (!(object instanceof Usergroup)) {

            return false;

        }

        Usergroup other = (Usergroup) object;

        if ((this.groupid == null && other.groupid != null) || (this.groupid != null && !this.groupid.equals(other.groupid))) {

            return false;

        }

        return true;

    }



    @Override

    public String toString() {

        return "entities.Usergroup[groupid=" + groupid + "]";

    }



}






Thanks again.

-ceyesuma





[u]

 

Note:



________________________________________________________________________



Code description:



  

JSP XML parser
MORACOM — Thu, 08 Oct 2009 20:14:05 GMT
I have this JSP code that i found online and it seems to work cuz it loops thru the xml file and writes the HTML code for the TRs and TDs but for some reason is not displaying the data. Am i missing something?



 <%@page import="org.w3c.dom.*, javax.xml.parsers.*" %>

<%

  DocumentBuilderFactory docFactory = 

  DocumentBuilderFactory.newInstance();

  DocumentBuilder docBuilder = docFactory.newDocumentBuilder();

  Document doc = docBuilder.parse

("http://www.somesite.com/file.xml");

%>

<%!

  public boolean isTextNode(Node n){

    return n.getNodeName().equals("#text");

  }

%>



  

      

    


 
Login Name 
Password 


                  

                  

                  





  





      

        

        

        

      

        <%

          Element  element = doc.getDocumentElement(); 

          NodeList personNodes = element.getChildNodes();     

          for (int i=0; i
            Node emp = personNodes.item(i);

            if (isTextNode(emp))

              continue;

            NodeList NameDOBCity = emp.getChildNodes(); 

        %>

      

        <%

          for (int j=0; j
            Node node = NameDOBCity.item(j);

            if ( isTextNode(node)) 

              continue;

        %>

        

        <%

          } 

        %>

      

        <%

          }

        %>

    Name of Employee Date of Birth City
<%= node.getFirstChild().getNodeValue() %>

Name of Employee	Date of Birth	City
<%= node.getFirstChild().getNodeValue() %>

configuring Tomcat

akulkarni — Thu, 08 Oct 2009 17:54:04 GMT

i am trying to learn servlets so i downloaded tomcat server.I learned that i have to do this...set path=c:\tomcat\lib\servlet.jar
or click the exe file tomcat6 in the bin folder. I tried to connect with localhost8080 it is not working.I am not getting Tomcat home page.

Any help will be great.

Connection is reset in client side for only pages that show information stored in dat

alsoumhi — Thu, 08 Oct 2009 09:10:39 GMT

hi experts, hope you are fine.
I am having a connection problem from client side to my servera(localhost:8080/project). client can access to my normal pages either jsp or html. However, for the jsp pages that show information stored in database , they are not appeared in client side and I got message say "connection reset while the page was loading"
please could you help me , in how to let these pages read information from database quickly and thereby will be shown in client side

The file could not be written

ddempsey96 — Wed, 07 Oct 2009 22:12:50 GMT

Web Server: Sun Java System Web Server 7 update 5

I have inherited a JSP application and am trying to get it to work. I have figured out that it has something to do with the

tag, because I cut all the rest of the code out.

On submit, I get the following error:

 javax.servlet.jsp.JspTagException: The file could not be written: java.io.FileNotFoundException: C:\WebApps\gpr\uploads\attachments\5217\c\DocumentsandSettings\gzjs4n\MyDocuments\227342050034.xls (The system cannot find the path specified)

        xephyrus.taglibs.fileupload.WriteTag.doEndTag(WriteTag.java:103)

        org.apache.jsp.att.attach_jsp._jspService(Unknown Source)

        org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:80)

        javax.servlet.http.HttpServlet.service(HttpServlet.java:917)

        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373)

        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:457)

        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:351)

        javax.servlet.http.HttpServlet.service(HttpServlet.java:917)

        com.cj.trim.trimFilter.doFilter(Unknown Source)

Notice how the error is referring to the file name as "C:\WebApps\gpr\uploads\attachments\5217\c\DocumentsandSettings\gzjs4n\MyDocuments\227342050034.xls". Basically, it is adding the whole (including path) name of the file instead of just taking the file name, which is "227342050034.xls". Since I have no other code creating this name, I do not know why this is happening.

Note: this could be a configuration problem, since I set up the Web Server myself and have not had any other experience doing this.

Problem with code

anantha_krish — Wed, 07 Oct 2009 10:23:27 GMT

Hi

I just tried to create the login form using java,jsp and servlets.The database am using here is mysql. The tool am using is eclipse galileo.The code is as follows:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

    pageEncoding="ISO-8859-1"%>









Insert title here





 



username 

password

package project1.example;

 

import java.io.IOException;

import java.io.PrintWriter;

 

//import javax.servlet.ServletException;

//import javax.servlet.http.HttpServlet;

//import javax.servlet.http.HttpServletRequest;

//import javax.servlet.http.HttpServletResponse;

 

/**

 * Servlet implementation class WelcomeServlet

 */

public class WelcomeServlet extends HttpServlet {

        private static final long serialVersionUID = 1L;

        public void doPost(HttpServletRequest request, HttpServletResponse response)

        throws ServletException, IOException {

 

        response.setContentType("Text/html;charset=UTF-8");

        PrintWriter out = response.getWriter();

 

        out.println("");

        out.println("Welcome");

        out.println("");

        out.println("");

        out.println("Employees Welcome!!!!");

        String user = request.getParameter("Username");

        String pass = request.getParameter("Password");

        System.out.println(user);

        System.out.println(pass);

        DbConnection dbconn = new DbConnection();

        try{

        if(dbconn.validateUser(user, pass)){

        //out.println("Jothi" + dbconn.validateUser(user, pass));

        //out.println("
                out.println("Did u come");

        }

        else{

        out.println(">Sorry you are not authorized
");

        }

        }

        catch(Exception e){

        e.printStackTrace();

        }

        out.println(""); 

        out.println(""); 

        out.println(""); 

        }

}

package project1.example;

 

import java.io.IOException;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

 

public class DbConnection {

 

      /**

       * @param args

       * @throws ClassNotFoundException 

       * @throws IllegalAccessException 

       * @throws InstantiationException 

       */

      public static Connection getConnection()

      throws IOException, InstantiationException, IllegalAccessException, ClassNotFoundException

      {

            Class.forName("com.mysql.jdbc.Driver").newInstance();

            Connection conn=null;

            try

            {

                  System.out.println("Before connection");

                  conn=DriverManager.getConnection("jdbc:mysql:comppromed:3036:anantha","root","buser");

                  System.out.println("After connection");

            } 

            catch(SQLException e) 

            {       

                  System.out.println("SQLException: " + e.getMessage()); 

                  while((e = e.getNextException()) != null) 

                        System.out.println(e.getMessage()); 

            } 

            //return conn;

            return conn;

      }

 

      public static boolean validateUser(String user, String pass)

      throws SQLException, IOException, InstantiationException, IllegalAccessException, ClassNotFoundException

      {

            boolean isValid = false;

            PreparedStatement stmt=null;

            ResultSet rs=null;

            String sql = "SELECT USER_NAME, PASSWORD FROM userlogin WHERE USER_NAME= ? AND PASSWORD= ?";

            System.out.println( "SQL : " + sql );

            System.out.println( "user : " + user );

            System.out.println( "pass : " + pass );

            stmt = getConnection().prepareStatement(sql);

            stmt.setString(1, user);

            stmt.setString(2, pass);

            

            stmt.executeQuery();

            rs = (ResultSet)stmt.getResultSet();

 

            if(rs.next())

            {

                  return true;

            }

 

            return isValid;

      }      

}

But am getting the error like :

HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: 7 in the generated java file
The type index_jsp must implement the inherited abstract method Servlet.getServletConfig()

An error occurred at line: 7 in the generated java file
The type index_jsp must implement the inherited abstract method Servlet.service(ServletRequest, ServletResponse)

An error occurred at line: 30 in the generated java file
No exception of type ServletException can be thrown; an exception type must be a subclass of Throwable

An error occurred at line: 44 in the generated java file
The method getPageContext(Servlet, ServletRequest, ServletResponse, String, boolean, int, boolean) in the type JspFactory is not applicable for the arguments (index_jsp, HttpServletRequest, HttpServletResponse, null, boolean, int, boolean)

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.

--------------------------------------------------------------------------------

Apache Tomcat/6.0.2

Please help me with the code.

Thank you.

JSP :java.sql.SQLException: ORA-01722: invalid number

Sujata Bandyo — Wed, 07 Oct 2009 05:46:07 GMT

Hi Friends,
I am having problem with the above code snippet. Initially it woked fine. But now it is giving an error of java.sql.SQLException: ORA-01722: invalid number.
How can I resolve the exception?
Thanks.

try

        {  String ein=(String)session.getAttribute("EIN");

           System.out.println("inside try block");

       Class.forName("oracle.jdbc.driver.OracleDriver");

    

        con=DriverManager.getConnection("jdbc:oracle:thin:@10.9.16.2:1521:TESTDB","HE","HE123");

        Statement st=con.createStatement();

        ResultSet rs=st.executeQuery("select distinct REV_OWNER from FBD_USER_AUTHENTICATION where user_ein="+ein+"") ; 

        System.out.println("after executing the query");

         

        while (rs.next())

        { j=j+1;%>

        

        <%=rs.getInt("rev_owner")%>

        "> 

        <%} %> 

        

        

        

        

        

        


        

        

        

        <%  if (!(con == null) || !con.isClosed())

                     {

                   con.close();

                 }

               } catch (Exception e1) {

                    System.out.println("Error--->"+e1.toString());

                         out.println("Error Detected----->"+e1.toString());

        

                    if (!(con == null) || !con.isClosed())

                     {

                         con.close();

                     }

        

                } %>

jsp with ajax problem

shanks_86 — Tue, 06 Oct 2009 12:35:43 GMT

heyy can ny 1 help me.....m wrking on jsp using ajax......i built a small application...as m new to ajax.....i built 2 field....FNAME & Lname and when my application used to do is..when you enter ur first name.....n press the tab button...the last name shld come from data base......but its nt wrking.....can ny 1 help me !!
file name-"Myform.html" -













                                       

ENTER THE WORLD













F.Name:



L.Name:

and

file name-"Lname.jsp"

<%@ page language="java" import="java.sql., java.io." %>

<%@ page import="java.util.*" %>



<%

String sn="";

String str1=request.getParameter("fname");

//String str2=request.getParameter("lname");

try{

Class.forName("oracle.jdbc.driver.OracleDriver");

Connection con=DriverManager.getConnection("jdbc:oracle:thin:@192.168.1.101:1521:ORCL","SHANKEY","SHANKEY");

Statement pst=con.createStatement();

String query="select Surname from DATA1 where Name='"str1"'" ;

//out.print(query);

ResultSet rst=pst.executeQuery(query);

while(rst.next()){

sn=rst.getString("Surname");

}



//else{

//response.sendRedirect("Myform.html");



out.println(sn);



//}



}catch(Exception e)

{

out.println("Exception:"+e);

}



%>

....................................can ny 1 help me out

Multiple Purchases

timon_zed — Mon, 05 Oct 2009 21:26:28 GMT

Kindly go through the code below and the little explanation that follows thereafter...
The code for the web form



            

                

                    

                        

                        

                    

                

                

                    

                        

                        

                    

                    

                        

                        

                    

`                    

                        

                        

                    

                    

                        

                        

                    

                    

                        

                        

                    

                    

                        

                        

                    

                    

                        

                        

                    

                

            
Product Number 
Quantity 
Product Number 
Quantity 
Product Number 
Quantity

The code for the purchase servlet.

String PID = request.getParameter("ProdNum");

        String Num = request.getParameter("quantity");

        

        float cost = 0;

        float value = 0;

        int amt,stocks;

        try

        {

            

            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

            Connection con = DriverManager.getConnection("jdbc:odbc:Concept","admin","");

            Statement st = con.createStatement();

            ResultSet rs = st.executeQuery ("SELECT * FROM Stock WHERE ProductID ="+PID+";");

            

            while(rs.next())

            {

                //Assigning Database data to chosen variables

                String ProdID = rs.getString(1);

                String ProdName = rs.getString(2);

                String Stock = rs.getString(3);

                String Price1 = rs.getString(4);

                //parsing Stock and Num to Integer values

                amt = Integer.parseInt(Num);

                stocks = Integer.parseInt(Stock);

                    

                if(stocks > amt)

                {

                    //parsing Price1 contents to double

                    value = Float.parseFloat(Price1);

                    //calculation of the cost of purchases

                    cost = amt*value;

                   

                    //Displaying the processed user input    

                    out.print(ProdID +'\t');

                    out.print(ProdName + '\t');

                    out.print(Num + '\t');

                    out.print("$ "+ cost);

                    out.println('\t'+"Back");

                    

                 }

                 else

                 {

                    out.print("Stocks are below the ordered quantity");

                    out.println('\t' + "Back");

                 }                   

            }

           //closing all connection processes to the database

            con.close();

            rs.close ();

            st.close ();

        }

        catch(Exception e)

        {

            System.out.print("Unable to find DB");

        }

Am trying to enhance the servlet so that i can simulate multiple purchases. Is there a way in which i can modify this servlet so that it can allow me to allow at least 3 products to be bought? Thanks for any help to be rendered.

Excel report problem in Servlet

Xessa — Mon, 05 Oct 2009 11:06:15 GMT

I have a Servlet and JSP page.

I invoke a method with form submit and the method is a java method.



response.setHeader("Content-Disposition", "attachment; filename = report.XLS");

                response.setContentType("application/vnd.ms-excel");

                response.getWriter().write(result);

                response.getWriter().flush();

Everything works fine but it tries to fit the columns in 1 page. So i have a long adress information.

The adress information is like this in the report.

XESSA IS TRYING
TO LEARN EXCEL

I want to see it like this in the report.

XESSA IS TRYING TO LEARN EXCEL.

I want it to have always 1 row length even it is as long as a novel.

Use of YUI Compressor in Struts Application

adityam4444 — Mon, 05 Oct 2009 08:36:31 GMT

I have a struts 1.x application which uses JDK 1.4.

I want to implement YUI Compressor in this. What can be the best ways to do that? Step wise instruction will be very helpful.

Thanks.

Problem uploading files into the Web-Inf folder

ssilver — Sat, 03 Oct 2009 15:03:06 GMT

Hi,
I can upload my files outside of the WEB-INF folder and to the path specified but am unable to upload them into the WEB-INF folder. I hope someone can point me in the right direction. Thanks!!

IDE : Netbeans
Server : Tomacat



 public void doPost(HttpServletRequest request, HttpServletResponse response)

    throws ServletException, IOException {



            PrintWriter out =  response.getWriter();

            boolean isMultiPart= ServletFileUpload.isMultipartContent(request); // find the request object enctype

            

            //String uploadDirectory = "D:\\upload\\images";



            String uploadDirectory="/WEB-INF/data"; // location to upload the file

            ServletContext sc = getServletContext();

            String realPath = sc.getRealPath(uploadDirectory);

            System.out.println(realPath);



            FileItemFactory fileFactory = new DiskFileItemFactory(100,new File(uploadDirectory)); //100 is the bytes to hold in memory beyond which write the file to the directory mentioned.



            ServletFileUpload serFileUpload = new ServletFileUpload(fileFactory); //commons API to handle multipart encoding type

            try {

                List fileItems = serFileUpload.parseRequest(request);

                Iterator iter = fileItems.iterator();

                while (iter.hasNext()) {

                    FileItem item = (FileItem) iter.next();



                    if (item.isFormField()) { // identifies the normal form field , false when it identifies the upload field

                        //simply process the form fields

                        System.out.println("Text Value -->"+item.getString());

                    } else {

                            try {

                                String fileName= null;

                                if (item.getFieldName().equals("imageUpload")){

                                    if(item.getName() != null){

                                    fileName=FilenameUtils.getName(item.getName());//FilenameUtils - commons.io API

                                    item.write(new File(uploadDirectory+File.separator+fileName)); // writes the file to the upload dir

                                    request.setAttribute("fileAddress",uploadDirectory+File.separator+fileName);

                                    RequestDispatcher rD = request.getRequestDispatcher("UnZipImage.do");

                                    rD.forward(request, response);

                                    }

                                }

                                else{

                                    RequestDispatcher rD = request.getRequestDispatcher("UploadForm.view");

                                    rD.forward(request, response);

                                }

                            } catch (Exception e1) {

                            e1.printStackTrace();

                            }

                    }

                }

            } catch (FileUploadException e) {

            e.printStackTrace();

            }

    }

Dynamic page titles

633shane — Thu, 01 Oct 2009 14:03:00 GMT

Hi All,

This is my first post on here so please be gentle with me!

We have a website that provides new car prices instantly to customers. One problem we are having is that Google (we think) does not like our 70000+ duplicate page titles.

Those pages come from our database, a page for each vehicle available from all the leading manufacturers. They also have a page for standard equipment, technical info etc etc. So all of the pages are different content but have the same Title tags and Meta Descriptions. The main thing I would like to resolve is the page titles, the meta descriptions I am hoping will just be a case of applying the same principles.

To do this and make each page have a different title it would be a good idea to pull through the make, model and derivative of the vehicle and put that in the page title... is this possible?

The site already generates a page title dynamically depending on what page you are on but they are all the same for 'technical info' or 'standard equipment'. I would like to add to that title calling information from another table in the database that holds the info about the vehicle in question.

To make this clearer...

Current page title 'Choose any optional extras now - Free Quotes for New Car Prices' - the first part of the title is pulled through dynamically but the second part appears on all pages (is static).

I will remove the static part as it is not really of any use...

What I would like the new title to look like is 'Choose any optional extras now - Audi A3 1.9 tdi SE 5dr Auto'

The vehicle info like I say is held in another table in the databse.

Could someone please help me achieve this? I am happy to post snippets of code if it will help, and give more information on database names and fields etc.

Very much appreciate your time for reading this!

Regards,

Shane

Do we want Java web development starting thread?

peter_budo — Wed, 30 Sep 2009 16:57:50 GMT

I would like to know if people would be interested in participating building similar starting thread like we have in Java section Starting "Java" [Java tutorials / resources / faq], but targeting Java web development.

This thread would hold resources (where to get the things, configurations, basic usage and any tips&tricks) in regards of servers (Tomcat, GlassFish, JBoss, and others), databases (Oracle, MySQL, PostgreSQL, HSQLDB, and others) and available web technologies(servlets, Java Server Pages, Java Server Faces, JavaServer Pages Standard Tag Library and others).

Additional comments are welcome.

deployment of online system project in windows using tomcat

alsoumhi — Wed, 30 Sep 2009 04:29:01 GMT

hi all , I have finsihed my small project(online form system), I mean the development stage, now I am looking
for how I deploy it in windows, exactly windows professional environment . what do I need in order to successfully access to online form project installed in windows professional. I would like to inform you that I have installed the tomcat server to the machine which I will use to run my project . I did everything(installation tomcat , setting java home, class path)to my machine as I do in the development stage.
or do I have to only change the port number from 8080 to 80.

please guys tell me , what I did is correct,or wrong , or I miss something important
actually I prefer if you give me the instruction of the full deployment of a project.
thank you very much

JSP for sending SMS

Abdul Gaffar — Tue, 29 Sep 2009 06:13:34 GMT

How i can make JSP as SMS sender to all celular operator. If someone has some reference or any source for more information.
:) Thanks before.

no-Cache Control in I.E causing back browser to show page not found

ankitjain_dce — Mon, 28 Sep 2009 17:41:57 GMT

Hi All,
We had an issue in our project that one user was able to see each other's data, we identified the problem as of caching by the proxy server of those users.
On checking we found, we were not specifying any caching preference in our server side code and have learnt since then that by default many proxy servers and almost all browsers cache the data.
After looking on net, we fixed this issue by adding following code in all load actions of our jsps:
response.setHeader( "cache-control","no-cache,no-store, must-revalidate, max-age=0, proxy-revalidate, no-transform, pre-check=0, post-check=0, private" );
Now on doing browser since page was not cached back browser will have to come to server again and this is what we desired.
This is working well in Mozilla but not in I.E(atleast not in i.e.6)
In I.E., we are getting page not found and on refreshing the page an expired page message, on one more refresh it works.
But is there a way that we can make back browser work in all browsers w/o user getting page not found or page can't be displayed?
Also best solution for us will be if page was cached only for one user and for next user ist should go to server, i was hoping "private" control of cache would so, but it also doesn't seem to be working in I.E .

Thanks.
Ankit

package javax.servlet does not exist :>

wildheart25c — Sun, 27 Sep 2009 15:18:50 GMT

you've read it once you've read it a thousand times! probably responded to it just as many times. Now i ask that you respond one more time
I've added as many details as possible becuase i've tried the solutions in an old thread in this forum but no luck.

http://developers.sun.com/mobility/m...les/tutorial2/ <= I'm following what they're telling me to do step by step but i get JAVAC NOT RECOGNIZED when i try to compile the code from that website. It's called Writing Servlet Source Code

1- I downloaded TOMACAT zip and unzipped it in my C drive => C:\jakarta-tomacat-4.1.31 Contents of hte zip are inside this directory.

2- I went here C:\jakarta-tomacat-4.1.31\webapps\midp\WEB-INF\classes and put a copy of that java file here. I created the directory midp and its subdirectories.

3- I went to C:\jakarta-tomacat-4.1.31\bin and pressed STARTUP. Now the server is running.

4- I started a prompt and did as I was told where i set the path then i tried JAVAC and i failed.

5- I went to ENV vars. There was no classpath. So i created one and added its value as C:\jakarta-tomacat-4.1.31\common\lib\servlet.jar

6- I closed the prompt and the server then tried again. Failed.

7- I tried going to the directory where my java file was and then tried javac and still i failed.

8- I started NetBeans and checked plugins. To my luck, and surprise, i found tomacat plugin which I installed alongside another plugin called WebSomething. It says that this plugin will be installed as well since its dependant on it.

9- I went to TOOLS then OPTIONS then MISCLANEOUS and pressed ADD JAR/ZIP next CLASSPATH and put this C:\jakarta-tomacat-4.1.31\common\lib\servlet.jar

10- I started a new prj and created a java file with the same name as the one in the site. I copied hte code too. Red lines appeared on almost every line of code. Like import javax.servlet.http.*; was underlined and the tip said package javax.servlet does not exist

So what now? I tried to make my post as detailed as possible. If you have a solution plz let me no. and in details if you plz :D
My jdk directory is C:\Program Files\Java\jdk1.6.0

JSP Books

rajeesh_rsn — Sun, 27 Sep 2009 12:48:15 GMT

hai

I am a PHP programmer and I likes to study JSP from the base level. Please advice me a right book to start.

Thanks in advance
Rajeesh

Red5 and MySQL

lukethedrifter — Sun, 27 Sep 2009 11:16:48 GMT

I know this contains actionscript, but the server side is Java. I am trying to get a red5 server to insert into mysql, but I can't get eclipse to compile this client side code.

Could someone tell me if this tutorial is up to date with galileo, the new version of eclipse? I can compile through the flex redistro (mxmlc.exe command line), and I can get the Java server running, but I do not know how to compile this client code:

http://www.actionscript.org/resource...ver/Page2.html

without the necessary flex xml to compile in the flex sdk (mxmlc.exe --strict)

video over internet

britto — Sat, 26 Sep 2009 08:22:18 GMT

hello..
i need help on how to convert a video to byte stream and i must sent that comverted stream through internet and in client it must be again changed to a video ...
what must i do??

JSP Bank Application

low1988 — Fri, 25 Sep 2009 17:29:25 GMT

Does anyone know how to compile the file inside the bank.zip with database ? Some of the pages can be view in Tomcat server others needs to bundle with the database

Attached Files

	bank.zip (19.3 KB)
	picture.zip (45.4 KB)

how do i send text from one page to another using javascript

r1990 — Fri, 25 Sep 2009 08:24:58 GMT

i created a dropdown list containing university names e.g. 'oxford' 'cambridge' and so on. I would like the uni selected from the dropdown list to be sent to another page as the heading.
I am having trouble doing this myself and I dont want to create a page for every single uni. can anyone help?

reading jsp array in to java(servlet) program

beanboy — Thu, 24 Sep 2009 08:33:19 GMT

hi helpers,
i'm trying to read an array from jsp in to java(servlet) page
the code is
JSP CODE (readingcheck box values):

String select[] = request.getParameterValues("sel"); 



if (select != null && select.length != 0) {



for (int i = 0; i < select.length; i++) {

out.println(select[i]);

its working ok!

JAVA CODE(reading array values):

String select2[] = request.getParameterValues("select"); 

for (int i = 0; i < select2.length; i++) 

{

System.out.println(select2[i]);

}

the above java code didnt worked.

i also tried this

String[] select= new String[100];

for (int i = 0; i <10 ; i++)

{

select[i] = request.getParameter(select[i]);

System.out.println(select[i]);

}

this didnt worked too
is there any other way to read array values from jsp page?
where am i wrong?

thanks,
BeanBoy !

having problem calling JSP pages inside subdirectories of a web directory

alsoumhi — Thu, 24 Sep 2009 02:15:28 GMT

Hi all, I am trying to access login page (html page) from subdirectory of my web directory , the login page calls loginServlet which is reponsible for authintication, then the loginServlet response back to the client a web page to the user(whether user or adminstrator) .
my web directory called project.
my subdirectory for pages called pages.
my problem is I can access to login by this http://localhost:8080/project/pages/login.html
and once I get login page and submit the page I get this error
(The requested resource (/project/pages/login) is not available.)
why is that? please help me.
I wrote like this in web.xml :

this to the login page

this is for login servlet

loginServlet

projectPackage.login

and I wrote this to call loginServlet in login page:

struts and jsp weird error help.

ryno365 — Wed, 23 Sep 2009 18:45:32 GMT

I'm trying to learn some struts through this tutorial: http://www.netbeans.org/kb/docs/web/...ps-struts.html

Now I've completed everything but I'm getting this weird error in the browser:

Quote:

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /login.jsp at line 20

17:
18:
19:
20:
21:
22:
23:

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)
root cause

javax.servlet.ServletException: javax.servlet.jsp.JspException: Exception creating bean of class LoginForm: {1}
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:852)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.login_jsp._jspService(login_jsp.java:92)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:390)

And here is file where I'm getting this error. I followed everything as its said in the tutorial.

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>

<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>

<%@page contentType="text/html" pageEncoding="UTF-8"%>


    "http://www.w3.org/TR/html4/loose.dtd">





    

        

        Login Script

    

    

       

        

        

       

            


            

                


                     

                

            

                    

                        

                        

                    

                    

                        

                        

                    

                    

                        

                        

                    

                

            



                    

                     
 Enter your name:  
Enter your email:

load database info in a JSP using a config file

ash2401 — Tue, 22 Sep 2009 20:30:41 GMT

I am new to JSPs. I would like to know how can I get the database info (drivername, url, username, password etc.) to load from a config file into the JSP rather than hard coding the values there.

Thank you everyone in advance.

ssl implementation using tomcat 6

funlovingashish — Tue, 22 Sep 2009 13:23:42 GMT

hiiii, i have to build a secure web application using jsp, for which i have to implement SSL. I have generated the certificate using java keytool but as soon as i edit my server.xml file to enable connector port for https (8443) and add the other attributes like keystore,storepass and keypass in the connector tag , my tomcat servers stops running even after system restart.
can anyone plz help me out....

Problem with reading submitted document

peter_budo — Mon, 21 Sep 2009 19:39:48 GMT

I need to read XML document submitted to doPost() method ( I do not want to upload it, just read in and pass for further processing). Here is a general code that I use for now to see if file been received.

public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {

        ServletInputStream sis = null;

        try {

            sis = request.getInputStream();

        }

        catch (IllegalStateException e) {

            e.printStackTrace();

        }

        if (sis != null) {

            print(sis);

            sis.close();

        }

    }



    private void print(ServletInputStream sis){

        java.io.BufferedReader br = null;

        try{

            br = new java.io.BufferedReader(new java.io.InputStreamReader(sis));



            StringBuilder sb = new StringBuilder();

            String line = null;



            while ((line = br.readLine()) != null) {

                sb.append(line + "\n");

            }



            br.close();

            System.out.println(sb.toString());

        }

        catch(IOException e){

            e.printStackTrace();

        }

    }

To test this I use curl utility to pass file to url as

curl URL --data-binary @FILENAME -H 'Content-type: application/atom+xml;type=entry'

However content of the file is not printed, only new line is added which means process get to this

sb.append(line + "\n");

command.

Any advice is welcome.

jsp statement help

nazd28 — Mon, 21 Sep 2009 10:06:54 GMT

hi im getting an error wen i give this syntax in order to retrieve info from my db into a txt box

/>

pls help

Prb with jsp and how to delete multiple rows

nazd28 — Mon, 21 Sep 2009 08:49:38 GMT

Hi i hve used the syntax provided by ul in order to del multiple rows using checkboxes but for some reason the code shows we an error wen i give the value of the checkbox as one of my feilds so that i cud del the rec on that bases. Pls help. Im using Ms access as my backend. An early reply wil be appreciated. Thanks in advance

Adding a submit button to each row generated

TryingToDo — Sun, 20 Sep 2009 12:36:56 GMT

1. I have a simple application, which uses a html table to represent the data retrieved from the database.

How can I add to each row from the Html Table, a submit button.
The button can be something like delete or modify the dates from that specific row, so I need to take some parameters from the row.

2. I have another question.
When I start the application, the app should querry the database, and show me the record, but the HTML table is empty. I need to press a button (which is mapped in web.xml) to see something.

How can I see the records from the first time?

Stock Levels

timon_zed — Sat, 19 Sep 2009 20:28:30 GMT

Hello good citizens,
Am trying to implement a simple web based shopping system, however I want to find out if there is a way in which i can reduce the quantity of goods in stock after customer buys just by using servlets without me having to go to the database to change the stock levels.

Any feedback would be appreciated.

printed in server instead of client

jmodeveloper — Sat, 19 Sep 2009 04:54:18 GMT

I am using jBoss server .
when we are giving print from the client it does it print in client but its get print in the server.. i don't know how to redirect it...so help me...

this is the piece of code::

PrintRequestAttributeSet printRequestAttributeSet = new HashPrintRequestAttributeSet();
printRequestAttributeSet.add(OrientationRequested.PORTRAIT);
printRequestAttributeSet.add(MediaSizeName.ISO_A4);
PrintServiceAttributeSet printServiceAttributeSet = new HashPrintServiceAttributeSet();
printServiceAttributeSet.add(new PrinterName("HP LJ P3005", null));
exporter = new JRPrintServiceExporter();
exporter.setParameter(JRPrintServiceExporterParameter.PRINT_REQUEST_ATTRIBUTE_SET, printRequestAttributeSet);
exporter.setParameter(JRPrintServiceExporterParameter.PRINT_SERVICE_ATTRIBUTE_SET, printServiceAttributeSet);
exporter.setParameter(JRPrintServiceExporterParameter.DISPLAY_PAGE_DIALOG, Boolean.FALSE);
exporter.setParameter(JRPrintServiceExporterParameter.DISPLAY_PRINT_DIALOG, Boolean.FALSE);

JSP and MySql connectivity

Anjana sharma — Wed, 16 Sep 2009 11:57:23 GMT

i am new in Jsp please tell me how to connect MySql to JSP ?

How to access to servlets inside subdirectories inside (classes directory) of tomcat

alsoumhi — Wed, 16 Sep 2009 08:07:32 GMT

hi all, I have simple question which is how to access to servlets inside subdirectories of classes directory?
I know that for one subdirectory inside the classes directory , you can access to servlets like this
http://host/servlet/packageName.ServletName
but how about the servlet is inside one or more subdirectories? I have tried this
http://host/servlet/packageName1/packageName2/packa geName3.ServletName
but it doesn't work , please can some one help me .
thank you

Pagination in JSP

gk0110 — Wed, 16 Sep 2009 04:48:56 GMT

Hi all,

I need to apply the pagination concept in my jsp page. The result set which is used to serve the jsp page is obtained through a dynamic query. Is it possible to apply the pagination concept in this case.. Please advice me ..
Is it possible to do this type of pagination thru client side scripting...
Many thanks in advance..

gk.

Basics to understand pager-taglib and how to use it

alsoumhi — Tue, 15 Sep 2009 09:49:08 GMT

I want to understant pager-taglib idea , how to use it , where to install it in which directory.
please provide me with tutorials that can explain it with clear examples because I read about it and got confused
thank you in advance

Ideas needed!

jamello — Tue, 15 Sep 2009 09:22:14 GMT

I have a challenge. I need to provide a solution that would enable me capture images of occupants of several motor vehicles scattered around a geographical area. These images could be still images or video transmitted over the web to my server in my headquaters.

I can program in JSP, ASP.NET, PHP in the order of preference. I did not want to recieve an infraction by not multiposting under these languages.

so idea(s) are welcome. What is the simplest, cost/time effective approach.

Admin: Is there a part where these type of scenario can be taken care of. that is, Ideas or solutions discussed irrespective of language used. Please permit my idiocy! lol.

jsp pages

nonhlah — Mon, 14 Sep 2009 21:48:52 GMT

I need some one whos googd with jsp to help me with sessions

Inserting data through JSP

gsd — Mon, 14 Sep 2009 08:51:20 GMT

Hii frnds,
I want to know how to insert data into a table through JSP when u have the table name as a variable...Pls help me out.

 Statement stmt5=con.createStatement();

      String qry5="insert into t1(id) values('"+dat0+"')"; 

      int u5=stmt5.executeUpdate(qry5);

I know this stuff. Wat I want to know is how do we do it if I had some String tname="t1". I want to use the insert command using tname and not t1.

Ive tried this:

insert into '"+tname+"' values(____);

But ti dint work...Plz plz help me out....

Limit the number of sessions in tomcat or iis

joewazen — Mon, 14 Sep 2009 08:45:03 GMT

Hello,

I have many jsp applications connected to Apache Tomcat 5 and IIS 6 i need to find a way to limit the number of active users in each application either in tomcat or in IIS, i know there is a way to configure server.xml in tomcat but will that limit the number of active users in all applications or in each individually?

Thnx

data retrieval trouble

timon_zed — Sun, 13 Sep 2009 13:51:30 GMT

Hi there,
I have a servlet which is meant to retrieve data from the database by compairing the number entered via a web form. The trouble is that, it only gives me the last record in the database and not any other record. I have 5 records in the database table and i want to be able to retrieve any one of them using the servlet. The code for the jsp and the servlet is below. Can anyone please point out where my mistake is and how I can resolve it.
Thanks in advance.

*the JSP Code*





Check Your data





        

          

                 

          

          

                

                

          

        

                

                

        

        
Product No:

the servlet

public class checkAvailable extends HttpServlet

{    

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)

    throws ServletException, IOException 

     {

        

        response.setContentType("text/html;charset=UTF-8");

        PrintWriter out = response.getWriter();

        String ProdID = new String("");

        String ProdName = new String("");

        String PAmt = new String("");

       

        try 

        {

            Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");//the driver manager string

            Connection con = DriverManager.getConnection("jdbc:odbc:Args","admin","");

            Statement st = con.createStatement();

            ResultSet rs = st.executeQuery ("SELECT ProductID,PName,Stock FROM Product");

            

            while(rs.next())

            {

                ProdID = rs.getString("ProductID");

                ProdName = rs.getString("PName");

                PAmt = rs.getString("Stock");

            }

            con.close();

            rs.close ();

            st.close ();

        }

        catch(Exception e)

        {

            System.out.print("Unable to find DB");

        }

        if(ProdID.equals(request.getParameter("prodNum")))

        {

            out.print("Prodcut ID : " +ProdID+ " Product Name : " +ProdName+ " Quantity"+PAmt);

        }

        else

        {

            

            out.print("Please Enter Correct Product Number");

            

        }

        out.close();

    }

}

Code to expire username and Password

rajshree13 — Sat, 12 Sep 2009 04:55:09 GMT

I want JSP code to expire the username and password in JSP.
Please help in this regards
It's Urgent

jsp problem

redsunit — Fri, 11 Sep 2009 16:39:25 GMT

hi, everybody

i have a question. can jsp get data from other pages?

thank.

Netbeans ex. of mvc model 2 db connections

ceyesuma — Fri, 11 Sep 2009 09:11:21 GMT

Topic
The topic of this question is: school_http-Netbeans ex. Of MVC model 2 db connections

Hello and Thank you in advance for any assistance.

………………………………………………………………………………………………………………………………………………………………………………………………

System:

System info: Netbeans6.7.1,jsf1.2,MySQL

………………………………………………………………………………………………………………………………………………………………………………………………

Purpose:

The purpose of this post is: Understand why attached program compiles but after the initial login the server won’t find any .jsp

………………………………………………………………………………………………………………………………………………………………………………………………

Functionality:

The functionality of this code is: The tutorial will show simple example of a school login system, where after submitting correct user ID and password user is redirected to the next page in accordance with user group assignment
· student - will see his personal details
· teacher - will see his name on the top of the page with table of all students (user ID, first name, last name, email address and phone number)
administrator - will see his name on the top of the page with tables of all teachers and all students (user ID, first name, last name, email address and phone number)
http://www.daniweb.com/forums/thread141776.html
the program builds and the index page displays the user Id and password entry but then there are errors.

………………………………………………………………………………………………………………………………………………………………………………………………

Question:

My question concerning this code is: For this program to work. Is there additional mapping needed in the faces-config.xml file?

………………………………………………………………………………………………………………………………………………………………………………………………

errors:

The errors related to this code are:
password 12345678 uid 12345678
redirected to: error page.

HTTP Status 404 -

type Status report

message

descriptionThe requested resource () is not available.
Sun GlassFish Enterprise Server v2.1

………………………………………………………………………………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………………………………………………………………………………

errors:

netbeans build -school(run)
compile-jsps:
Incrementally deploying school_localhost:4848_server
Completed incremental distribution of school
run-deploy:
Browsing:http://localhost:8080/school/
run-display-browser:
run:
BUILD SUCCESSFUL (total time: 6 seconds)

………………………………………………………………………………………………………………………………………………………………………………………………

Description:

Code description:

………………………………………………………………………………………………………………………………………………………………………………………………

Thanks again.
-ceyesuma

………………………………………………………………………………………………………………………………………………………………………………………………

Note:

Note:
The Program can be found and database can be found at:
http://cid-b5cb457363230793.skydrive...t^_and^_db.zip

named school_project_and_db.zip

………………………………………………………………………………………………………………………………………………………………………………………………

………………………………………………………………………………………………………………………………………………………………………………………………

Description:

Code Description:

………………………………………………………………………………………………………………………………………………………………………………………………

problem with back button in jsf

cissi — Fri, 11 Sep 2009 07:46:49 GMT

Hi!
When I click on h:outputLink after using the browsers back button I get a viewExpiredException.

Som info of my setting in web.xml:
org.apache.myfaces.SERIALIZE_STATE_IN_SESSION true

javax.faces.STATE_SAVING_METHOD client

How can I fix this or go around the problem. I am using jsf 1.2.

Problem:mysql

ishlux — Fri, 11 Sep 2009 05:51:24 GMT

Hi all,

I have downloaded mysql, please tell me how to create database,
and tables in mysql, .. just forward me the queries for how to create table, database,

and how to make database connection in my jsp code...........reply me soon pls..........
give me example code,,,, i wil try to fallow it ...........

Thanks
Ishlux

jsp ide help

MxDev — Wed, 09 Sep 2009 13:02:24 GMT

Hi guys,
Is there any JSP IDE which facilitate the development of webpages as in ASP.NET using Visual studio with minimal written code.

Thanks in advance

retrieve images from server location

beanboy — Wed, 09 Sep 2009 09:01:29 GMT

hi,

i managed to upload files from client to server hard disk using apache commons.

how could iretrieve files to client from server again?
plz gimme an idea of implementation

thx
beanboy.

where to add othe java classes with JSP i tomcat

alsoumhi — Wed, 09 Sep 2009 08:18:14 GMT

Hi all, I am having a problem in JSP, it is very simple.
I have a java class and a JSP program, my JSP program will call the a method of java program in order to work as one complete application .however, I got an error says undetermined method.
Based on what I know , java classes(not the source code) under (WEB-INF/classes) and the JSP under the root
I did this , I still got errors.

or may be I import my java program wrongly, I did this(<%@ page import="classes.*" %>)
please help me

mysql:Help me out

ishlux — Wed, 09 Sep 2009 07:35:47 GMT

Hi all,

I am New to jsp, i want to create database,, i have ms access, but it does not store more data, so i want to mysql database , give me the link , which version wil be better for my jsp application ......reply soon pls...and tel how to make settings after downloading... i mean setting classpath everything

thanks
ishlux

JSP database connectivity

ceyesuma — Wed, 09 Sep 2009 06:34:54 GMT

Hello.
I was studying the database connectivity tutorial .
I set it up with the database in MySQL.

However I tried to set it up using Netbeans6.7.1. just to see if I could get it to run. it's not working out.

Can this be setup in netbeans? I have attached the program.
at:
http://cid-b5cb457363230793.skydrive...olTutorial.zip
I also plan to try to recreate it step by step with netbeans if possible.

any feed back on what is wrong with the example setup with netbeans would be appreciated.
-ceyesumma


Product Number
Quantity
Product Number
Quantity
Product Number
Quantity



Login Name
Password

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