session tracking

session tracking

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January 15, 2009 at 12:00 AM

Hi friend,

Session tracking is maintain the state of a user through out the application.

There are four typical solutions to this problem.
4.Hidden field

1.Create a user login page "login.jsp"


<form name="loginform" method="post" action="loginaction.jsp" onsubmit="return validLogin();">
<td colspan=2>
<h1>User Login</h2>

<td>Login Name</td>
<td><input type="text" name="userName" value=""></td>
<td><input type="password" name="password" value=""></td>

<td><input type="submit" name="Submit" value="Submit"></td>


January 15, 2009 at 12:02 AM

2.create a page to check the valid user.if it exists then it stores in the
session forward to the "welcome.jsp" else it come back again "login.jsp".


<%@ page language="java" import="java.sql.*;"%>

String userName = request.getParameter("userName");
String password = request.getParameter("password");

System.out.println("MySQL Connect Example.");
Connection conn = null;
String url = "jdbc:mysql://localhost:3306/";;
String dbName = "userlogin";
String driver = "com.mysql.jdbc.Driver";
String username = "root";
String userPassword = "root";
try {
conn = DriverManager.getConnection(url+dbName,username,userPassword);
Statement st = conn.createStatement();
String strQuery = "select count(*) from user where username='"+userName+"' and password='"+password+"'";
ResultSet rs = st.executeQuery(strQuery);

System.out.println("Connected to the database");
System.out.println("Disconnected from database");
} catch (Exception e) {

January 15, 2009 at 12:03 AM


String user = session.getAttribute("userid").toString();
<%= user%></h1>


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