validation page

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Re: validation page

#11

Jul 24th, 2008

hi,
I have to install it .let me upgrade with the latest version as suggested then we can go ahead with the queries.I have never installed mysql because i had seen that there is mysql server,mysql enterprise,etc .so what exactly i have to download and where can i find it free.same thing goes for java also.For now thanks .
see you.

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Re: validation page

#12

Jul 24th, 2008

Download

MySQL Community Server
Tomcat 6.0.16
JDK 5.0 Update 16 or JDK 6 Update 7 (I use JDK 5, my website provider has some issues with running JDK 6 on Tomcat 6)

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Re: validation page

#13

Jul 24th, 2008

hi,
I am installing mysql server and over there it has several options for windows i.e
2.4.8.1. Choosing An Installation Package
2.4.8.2. Installing MySQL with the Automated Installer
2.4.8.3. Using the MySQL Installation Wizard
2.4.8.4. MySQL Server Configuration Wizard
2.4.8.5. Installing MySQL from a Noinstall Zip Archive
2.4.8.6. Extracting the Install Archive
2.4.8.7. Creating an Option File
2.4.8.8. Selecting a MySQL Server Type
2.4.8.9. Starting the Server for the First Time
2.4.8.10. Starting MySQL from the Windows Command Line
2.4.8.11. Starting MySQL as a Windows Service
2.4.8.12. Testing The MySQL Installation
2.4.8.13. Troubleshooting a MySQL Installation Under Windows
2.4.8.14. Upgrading MySQL on Windows
2.4.8.15. MySQL on Windows Compared to MySQL on Unix
now which one to choose and go ahead .after the complete installation of java and db,do i have to set any environment variables or else any other setting to be done.for that please assist me.thank you.

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Re: validation page

#14

Jul 24th, 2008

Ehmm, what exactly did you downloaded?

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Re: validation page

#15

Jul 24th, 2008

hi,
That was just a mistake from my side . Till now i have downloaded tomcat 6.0 and continuing to download mysql community server and JDK5.0 as well.so till now working fine.see u back after the download is over because assistance is still required.
thank you.
take care

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Re: validation page

#16

Aug 2nd, 2008

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Originally Posted by peter_budo

You misunderstand the idea of JSP-servlet relation. Bellow is something you should do (I did not compile it so it may not be 100% correct)

Simple html login screen
Help with Code Tags

html Syntax (Toggle Plain Text)
<html>
<head>
<title>Ask for Names Example</titls>
</head>
<body bgcolor="LightSkyBlue">
<h3 align="center">Login event with use of the POST method</h3>
<form action="LoginEvent" method="post">
<p align="center">Username: <input type="text" site="20" name="username">
&nbsp;&nbsp;&nbsp;
Password: <input type="text" size="20" name="password"></p>
<p align="center"><input type="submit" value="Submit"></p>
</form>
</body>
</html>
<html> <head> <title>Ask for Names Example</titls> </head> <body bgcolor="LightSkyBlue"> <h3 align="center">Login event with use of the POST method</h3> <form action="LoginEvent" method="post"> <p align="center">Username: <input type="text" site="20" name="username">     Password: <input type="text" size="20" name="password"></p> <p align="center"><input type="submit" value="Submit"></p> </form> </body> </html>
Note: The form parameter action uses LoginEvent servlet that has been mapped through web.xml.

servlet to get data and connect to db
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java Syntax (Toggle Plain Text)
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
 
public class FrontController extends HttpServlet
{
	Connection conn;
	Statement stmt;
 
	public void init() throws ServletException
	{
		try
		{
			Class.forName("com.mysql.jdbc.Driver").newInstance();
		}
		catch (Exception ex)
		{
			System.out.println("Exception is : " + ex.toString() );
		}
 
	public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
	{
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		boolean bValid = true;
		HttpSession session = request.getSession();
 
		if( (name.lenght() == 0) || (password.length() == ))
		{
			bValid = false;
		}
 
		if(bValid) // submited data are OK
		{
			try
			{
				conn = DriverManager.getConnection("jdbc:mysql://localhost/" 
														+ "database_name?user=your_username&password=your_password");
				stmt = conn.createStatement();
			}
			catch(SQLException ex)
			{
				System.out.println("SQLException : " + ex.getMessage() );
			}
 
			/**
			 * DO THE REST OF DATABASE REQUESTS
			 *
			 * DO NOT FORGET TO CLOSE CONNECTION
			 *
			 **/			
		}
 
		if(bValid)
		{
			// YOU MAY WANT TO CREATE SOME SESSIONS HERE
			RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/accept.jsp");
			dispatcher.forward(request, response);
		}
		else
		{
			RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/reject.jsp");
			dispatcher.forward(request, response);
		}
	}
}
import java.io.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; public class FrontController extends HttpServlet { Connection conn; Statement stmt; public void init() throws ServletException { try { Class.forName("com.mysql.jdbc.Driver").newInstance(); } catch (Exception ex) { System.out.println("Exception is : " + ex.toString() ); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException { String username = request.getParameter("username"); String password = request.getParameter("password"); boolean bValid = true; HttpSession session = request.getSession(); if( (name.lenght() == 0) || (password.length() == )) { bValid = false; } if(bValid) // submited data are OK { try { conn = DriverManager.getConnection("jdbc:mysql://localhost/" + "database_name?user=your_username&password=your_password"); stmt = conn.createStatement(); } catch(SQLException ex) { System.out.println("SQLException : " + ex.getMessage() ); } /** * DO THE REST OF DATABASE REQUESTS * * DO NOT FORGET TO CLOSE CONNECTION * **/ } if(bValid) { // YOU MAY WANT TO CREATE SOME SESSIONS HERE RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/accept.jsp"); dispatcher.forward(request, response); } else { RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/reject.jsp"); dispatcher.forward(request, response); } } }

does this get written directly to the Dreamweaver page or should it be different,
does the system.out.println() print on the browser and what about a mailto link can you help me with that?
i am sorry if these questions seem absurd but i am new with JSP and really need help for a major project
thankyou

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Re: validation page

#17

Aug 2nd, 2008

@does this get written directly to the Dreamweaver page or should it be different
You do not want to use Dreamweaver for Java web development. NetBeans is more reasonable

@does the system.out.println() print on the browser
No that is system message that will displayed if anything happens while Tomcat server running command prompt

@what about a mailto link can you help me with that
mailto is a basic of HTML that you should already know, if not visit w3schools.com website

@i am sorry if these questions seem absurd but i am new with JSP and really need help for a major project
Do you have any Java programming experiences?

PS: Hijacking other people thread is not a nice thing to do...

Last edited by peter_budo : Aug 2nd, 2008 at 5:09 pm. Reason: typo

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Re: validation page

#18

Aug 3rd, 2008

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Originally Posted by peter_budo

@does this get written directly to the Dreamweaver page or should it be different
You do not want to use Dreamweaver for Java web development. NetBeans is more reasonable

@does the system.out.println() print on the browser
No that is system message that will displayed if anything happens while Tomcat server running command prompt

@what about a mailto link can you help me with that
mailto is a basic of HTML that you should already know, if not visit w3schools.com website

@i am sorry if these questions seem absurd but i am new with JSP and really need help for a major project
Do you have any Java programming experiences?

PS: Hijacking other people thread is not a nice thing to do...

how can i say this...
this is an assignment by my web development lecturer which has to be done in dreamweaver as a jsp page which re-validates what has been entered in the previous page and if it is correct it has to print a mailto link on the page otherwise it displays an error message, the lectures are missing those points so i am going for any help i can get

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Re: validation page

#19

Aug 3rd, 2008

Do you have Tomcat on your pc or access to Tomcat based web hosting?

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