jsp code

<%@ page import="temperory.Mrityunjay.*"%>
<%@ page import="com.MindShaper.ClassTeacher.Utility.BaseServlet.VSHttpServlet" %>
<%@ page import="java.util.*"%>
<%@ page import="com.MindShaper.ClassTeacher.Utility.Helper.*" %>
<%@ page import="ClassTeacher.SessionObject"%>
<%@ page import="ClassTeacher1.MemoryTables"%>


<HTML>
<HEAD>
<TITLE>Student Information</TITLE>
<!-- for confirm () -->
<script language="JavaScript1.2" src="functions.js" type="text/javascript"> </script>
<link rel="stylesheet" href="lib.css" type="text/css">


<style type="text/css">
<!--
td {
padding-left: 15px;
}
-->
</style>


</HEAD>


<BODY>
<link rel="stylesheet" href="/utils/infrastructure/common.css" type="text/css">
<form name="input" method='get' action="/servlets/temperory.Mrityunjay.Update" >
<%


SessionObject sessObj= (SessionObject)request.getSession(false).getValue("com.MindShaper.ClassTeacher.VS.SessionObject");
if(sessObj == null) {
String errMsg = "Your Session Has Been Deactivated";
errMsg = MemoryTables.removeSpaces(errMsg);
response.sendRedirect("/servlets/ClassTeacher.GetLoginData?errMsg=" + errMsg);
return;
}
Displayname a= new Displayname();
int Id=RequestHelper.getInt(request,"Id",0);
String act = RequestHelper.getString(request,"act","");
String fname = "";
String lname ="";
String class1="";


if(act.equalsIgnoreCase("edit"))
{
a = Displayname.getbyId(Id);
fname=a.getFirstname();
lname = a.getLastname();
class1=a.getClass1();


}


%>


<table border="0" align='center' width="70%" height="20%">
<tr>
<th align=Center colspan=0></th>
</tr>
Type your first name:
<input type="text" name="FirstName" value ="<%=fname%>">
<br>
<br>Type your last name:
<input type="text" name="LastName"value= "<%=lname%>">
<br>
<br>Type  your Class:
<input type="text" name="Class" value= "<%=class1%>" >
<br>
<input type="submit" value="UPDATE">
<input type="hidden" name="act" value="<%=act%>">
</form>
</BODY>
</HTML>


servlet code



// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3)
// Source File Name:   AddEditArea.java


package temperory.Mrityunjay;


import ClassTeacher.SessionObject;
import ClassTeacher1.MemoryTables;
import com.MindShaper.ClassTeacher.Utility.BaseServlet.VSHttpServlet;
import com.MindShaper.ClassTeacher.Utility.Helper.*;
import java.io.IOException;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.*;


// Referenced classes of package com.MindShaper.ClassTeacher.Utility.Administration.NTransport:
//            NTransportDBHelper


public class Update extends VSHttpServlet
{


public Update()
{
}


public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
doPost(req, res);
}


public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
SessionObject sessObj1 = (SessionObject)req.getSession(false).getValue("com.MindShaper.ClassTeacher.VS.SessionObject");
if(sessObj1 == null)
{
String errMsg = "Your Session Has Been Deactivated";
errMsg = MemoryTables.removeSpaces(errMsg);
res.sendRedirect("/servlets/ClassTeacher.GetLoginData?errMsg=" + errMsg);
return;
}
Log.log("1");
String act;
act= RequestHelper.getString(req,"act","");
Log.log("2");


int Id= RequestHelper.getInt(req, "Id",0);
String fname = RequestHelper.getString(req, "FirstName", "");
String lname = RequestHelper.getString(req, "LastName", "");
String class1 = RequestHelper.getString(req, "Class", "");



String query1= "UPDATE MRITYUNJAY set Firstname = '"+StringHelper.makeDbSafe(fname)+"',Lastname = '"+StringHelper.makeDbSafe(lname)+"',Class='"+StringHelper.makeDbSafe(class1)+"' where Id= "+Id;
Log.log("3");
try
{
DBHelper.executeIt(query1);
}


catch(Exception e)
{
}



res.sendRedirect("/temp/mrityunjay/displayname.jsp");


}
}

plz help as urgent as possible

Error messages and stack traces would help.

there is no error messages and i dont know how to code trace plz help me i need it urgently

I'm sorry, but that says it all.

The application server you are using to server these pages has a log. The errors should be found there. And I said nothing about a "code trace". I said a "stack trace", these should also be in the log file, probably directly after the error message, as long as the application server is not configure to prevent them.

thank u problem solved

what includes J2EE means whats the specification for j@EE does it include EJB and STRUTS

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