/*
* FileBean.java
*
* Created on September 1, 2007, 10:13 PM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
package exampleprojects;
/*
* FileBean.java
*
* Created on August 30, 2007, 6:58 PM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
import java.io.*;
/**
*
* @author fpcampus
*/
public class FileBean {
private String file;
/** Creates a new instance of FileBean */
public FileBean() {
}
public void setFile(String file){
this.file=file;
}
public void setData(String data){
FileWriter fw= null;
PrintWriter pw= null;
try{
fw= new FileWriter(file, true);
pw= new PrintWriter(fw);
pw.println(data);
pw.flush();
pw.close();
fw.close();
}catch(Exception exc){}
}
public String getData(){
FileReader fr= null;
BufferedReader br= null;
String line=" ";
String tempS=" ";
try{
fr= new FileReader(file);
br= new BufferedReader(fr);
line = br.readLine();
while(line!=null){
tempS= tempS + line + "<br>";
line=br.readLine();
}
}catch(Exception exc){}
return tempS;
}
}
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Account information</title>
</head>
<body>
<h2>Account information</h2>
<form action="interface.jsp" method="post">
<select name="topic">
<option value="none">Select a topic
<option value="JSP">Java Server Pages
<option value="Tomcat">Tomcat Server
<option value="Java">Java Programming
</select><br><br>
<input type="submit" name="view" value="View bulletin"><br>
<input type="submit" name="post" value="Post bulletin/">
</form>
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Account information</title>
</head>
workspace/ExampleProjects/build/classes/exampleprojects
<body>
<jsp:useBean id="fileBean" class="exampleprojects.FileBean"/>
<%
String topic =request.getParameter("topic");
String vPath ="exampleprojects/"+topic+".txt";
String filePath=getServletConfig().getServletContext().getRealPath(vPath);
if(topic.equals("none")){
%>
Please Select a topic.
<%}else{%>
<jsp:setProperty name="fileBean" property="file" value="<%= filePath %>"/>
<%
if(request.getParameter("view")!= null){
%>
<jsp:getProperty name="fileBean" property="data"/>
<%}%>
<%
if(request.getParameter("post") != null){
%>
<h2>Account Information</h2>
<form action="interface.jsp" method="post">
<TextArea> name=message cols=25 rows=5></TextArea>
<input type=hidden name=topic value="<%= topic%>"><br>
<input type =submit name=addBulletin value="post bulletin">
</form>
<%>}%>
<% if(request.getParameter("addBulletin") !=null && !request.getParameter("message").equals(" ")){
%>
<h2>Bulletin Saved!</h2>
<jsp:setProperty name="fileBean" property="data" param="message"/>
<jsp:setProperty name="fileBean" property="data" value="----------------------------------"/>
<% } %>
<% } %>
<br><br>
<a href="interface.html">Return to main Page</a>
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<!-- DW6 -->
<head>
<!-- Copyright 2005 Macromedia, Inc. All rights reserved. -->
<title>James Stephen Howerton Advanced Java</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" href="images/mm_health_nutr.css" type="text/css" />
<script language="JavaScript" type="text/javascript">
//--------------- LOCALIZEABLE GLOBALS ---------------
var d=new Date();
var monthname=new Array("January","February","March","April","May","June","July","August","September","October","November","December");
//Ensure correct for language. English is "January 1, 2004"
var TODAY = monthname[d.getMonth()] + " " + d.getDate() + ", " + d.getFullYear();
//--------------- END LOCALIZEABLE ---------------
</script>
<style type="text/css">
<!--
a:link {
color: #009900;
}
a:visited {
color: #999999;
}
a:hover {
color: #009999;
}
a:active {
color: #FF0000;
}
a {
font-size: 14px;
}
.style1 {font-size: 12px}
-->
</style></head>
<body bgcolor="#F4FFE4">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr bgcolor="#D5EDB3">
<td width="382" colspan="2" rowspan="2"><img src="images/header1.jpg" alt="advanced java programs." width="382" height="101" /></td>
<td width="378" height="50" id="logo" valign="bottom" align="center" nowrap="nowrap">James Stephen Howerton </td>
<td width="100%"> </td>
</tr>
<tr bgcolor="#D5EDB3">
<td height="51" id="tagline" valign="top" align="center">SLCC Forest Park Fall 2006 </td>
<td width="100%"> </td>
</tr>
<tr>
<td colspan="4" bgcolor="#5C743D"><img src="images/mm_spacer.gif" alt="" width="1" height="2" border="0" /></td>
</tr>
<tr>
<td colspan="4" bgcolor="#99CC66" background="images/mm_dashed_line.gif"><img src="images/mm_dashed_line.gif" alt="line decor" width="4" height="3" border="0" /></td>
</tr>
<tr bgcolor="#99CC66">
<td> </td>
<td colspan="3" id="dateformat" height="20">Today Is ::
<script language="JavaScript" type="text/javascript">
document.write(TODAY); </script> </td>
</tr>
<tr>
<td colspan="4" bgcolor="#99CC66" background="images/mm_dashed_line.gif"><img src="images/mm_dashed_line.gif" alt="line decor" width="4" height="3" border="0" /></td>
</tr>
<tr>
<td colspan="4" bgcolor="#5C743D"><img src="images/mm_spacer.gif" alt="" width="1" height="2" border="0" /></td>
</tr>
<tr>
<td width="40"> </td>
<td colspan="2" valign="top"> <br />
<br />
<table width="610" border="2" align="center" cellpadding="2" cellspacing="0">
<tr>
<td colspan="7" bgcolor="#00FF00" class="pageName"><div align="center">Completed Programs </div></td>
</tr>
<tr>
<td width="22%" height="110" valign="top"><div align="center"><a href="replacement_prog_1.html">Replacement Program</a> </div></td>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href="Celsius Into Fahrenheit_proj_1.htm">Celsius Into Fahrenheit</a> </div></td>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href="OnlineProduceStand.html">Online Produce Stand </a>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href="guest_book.jsp">Guest Book</a></div></td>
</tr>
<tr>
<td class="detailText" valign="top" nowrap="nowrap"><a href="library_lookup.html"></a>Program one /part one <br /></td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap">Program one/part two <br /></td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap">Program two <br></td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap">Program Three/part one</td>
</tr>
<tr>
<td colspan="7"> </td>
</tr>
<tr>
<td height="110" valign="top"><div align="center"><span class="detailText"><a href="xyz.html">XYZ Company</a></span></div></td>
<td valign="top"> </td>
<td height="110" valign="top"><div align="center"><span class="detailText"><a href="musicMagazineOrderForm.html">Music Magazine Order Form</a></span></div></td>
<td valign="top"> </td>
<td height="110" valign="top"><div align="center"><span class="detailText"><a href="javascript:;">update file</a></span></div></td>
<td valign="top"> </td>
<td height="110" valign="top"><div align="center"><span class="detailText"><a href="quiz.html">Quiz</a></span></div></td>
</tr>
<tr>
<td class="detailText" valign="top" nowrap="nowrap">Program three/part two</td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap">Program four</td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap">Program five</td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap">Program six</td>
</tr>
<tr>
<td width="22%" height="110" valign="top"><div align="center"><a href="dbconnection.jsp"> dbconnection.jsp?</a> </div></td>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href=""></a> </div></td>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href=""> </a>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href=""></a></div></td>
</tr>
<tr>
<td width="22%" height="110" valign="top"><div align="center"><a href="interface.html"> interface.html?</a> </div></td>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href=""></a> </div></td>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href=""> </a>
<td valign="top"> </td>
<td width="22%" height="110" valign="top"><div align="center"><a href=""></a></div></td>
</tr>
<tr>
<td class="detailText" valign="top" nowrap="nowrap">Program seven</td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap"></td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap"></td>
<td> </td>
<td class="detailText" valign="top" nowrap="nowrap"></td>
</tr>
<tr>
<td colspan="7"><div align="center" class="style1"><a href="mailto:ceyesumma@hotmail.com">Contact</a><br />
Revised October 26, 2006 </div></td>
</tr>
</table>
</td>
<td width="100%"> </td>
</tr>
<tr>
<td width="40"> </td>
<td width="342"> </td>
<td width="378"> </td>
<td width="100%"> </td>
</tr>
</table>
</body>
</html>
I have a program I am building but I had to back up to this simple program to try to understand how it should work. Please find inclosed an index.html with a links (interface.html) which should post to interface.jsp that uses file bean. I have to get a working knowledge of writing to a file and systematically go through the file and pull out correct entries. Is it easy to perform this with a simple file writer or should I be working with a random access file? Thank you for your time
