Home Discussion Discuss: Simplest Login and Logout example in JSP

  • Login and Logout System of EmployeeNavdeep Khandelwal May 27, 2013 at 11:47 AM

    I want to make login,logout system of employees using jsp.when they enter in company they do login and when he goes out to the home,they do logout. And i want to store working hours of an employee on daily basis. And after one month i want to check working hours of everyone employee. I want to store all that information into mysql database. Can you guide me about this project.

  • logout problemPrashant September 23, 2011 at 8:27 AM

    whenevr i click on logout button it successfully logout me also session is invalidated but when i click on back button then i can get back that logged in user ..what to do solve this problems

  • logout codesubbarao October 11, 2011 at 2:53 PM

    Hi, This is Subba Rao.i have a problem with the logout page. whenever i logout the page,after that i click the "Back" button it will goes to the previous page and shows the details in the last page. But i want after click the Logout it will shows the user defined message and whenever click the "Back" button it won't go to the previous page. So, Please Help me for that. I want that code.Please its Urgent. Help me please.

  • thanxshamin December 13, 2011 at 2:18 PM

    nice work thanx for sharing

  • Problem with solutionTony December 15, 2011 at 10:06 PM

    This solution seem to generate an exception: SEVERE: Exception initializing page context java.lang.IllegalStateException: Cannot create a session after the response has been committed Using tomcat 6.0.28

  • ThanksAniketh January 9, 2013 at 12:23 PM

    Thanks for the code.

  • back buttonrohit padhee July 25, 2012 at 7:36 PM

    when I press the back button, the previous session is still there....Please help!!!!!!!!

  • LogoutHarish Vats July 29, 2012 at 8:29 AM

    Even by using session.invalidate(), if we press back button the site gets loaded. please help,how to stop it.

  • Nice code...but....Zul August 23, 2012 at 6:38 AM

    Hi, This is a great and simple code. It works smoothly...but when i want to update,delete,add my table from sql its error..can you help me...

  • Need helpZul August 23, 2012 at 6:51 AM

    Can you help me it does not work if i update, delete and add.. <%@page import="java.util.*" %> <%String str = request.getParameter("userName"); <%session.setAttribute("UserName", request.getParameter("UserName"));%> Welcome to <%= session.getAttribute( "UserName" ) %> <% if (session.getAttribute("UserName").equals("")){%> <a href="login.jsp"><b>Login </b></a> <%} else{%> <a href="logout.jsp"><b>Logout</b></a> <%} %> <%@ page import="java.sql.*" %> <html> <head> <script language="javascript"> function editRecord(id){ var f=document.form; f.method="post"; f.action='edit.jsp?id='+id; f.submit(); } function deleteRecord(id){ var f=document.form; f.method="post"; f.action='delete.jsp?id='+id; f.submit(); } function addRecord(){ var f=document.form; f.method="post"; f.action='add.jsp'; f.submit(); } </script> </head> <body> <br><br> <form method="post" name="form"> <table border="1"> <tr><th>Title</th><th>Author</th><th>Price</th><th>Quantity</th></tr> <% Connection con = null; String url = "jdbc:mysql://localhost:3306/"; String db = "ebookshop"; String driver = "com.mysql.jdbc.Driver"; String userName ="root"; String password="root"; int sumcount=0; Statement st; try{ Class.forName(driver).newInstance(); con = DriverManager.getConnection(url+db,userName,password); String query = "select * from books"; st = con.createStatement(); ResultSet rs = st.executeQuery(query); %> <% while(rs.next()){ %> <tr><td><%=rs.getString(2)%></td> <td><%=rs.getString(3)%></td> <td><%=rs.getString(4)%></td> <td><%=rs.getString(5)%></td> <td><input type="button" name="edit" value="Edit" style="background-color:#49743D;font-weight:bold;color:#ffffff;" onclick="editRecord(<%=rs.getString(1)%>);" ></td> <td><input type="button" name="delete" value="Delete" style="background-color:#ff0000;font-weight:bold;color:#ffffff;" onclick="deleteRecord(<%=rs.getString(1)%>);" ></td> </tr> <% } %> <% } catch(Exception e){ e.printStackTrace(); } %> </table> <br> <input type="button" name="add" value="Add Record" style="background-color:#ff0000;font-weight:bold;color:#ffffff;" onclick="addRecord();" > </form> </body> </html>

  • BugRupesh Ranjan Sahay August 26, 2012 at 7:01 PM

    Your code has bug, when i press back button it should not allow us to go to the information page.It should go to the login page only. Please let me know if i m wrong.

  • about simplest login and logout jsp codeChetan October 7, 2012 at 5:10 PM

    hi there i had executed this code it executes bt wen i add table and simple validation code for the text box in javascript then it will give me error 500 and executes properly. i'm using gooogle chrome & netbean frame work. plz, solve my problem & send me solution through email to my mail id . plzzzzzzzzzzzzz, i urgently need solution.

  • log out problemOMKAR GOPAL DESHMUKH October 8, 2012 at 5:36 PM

    Your code is working but after logging out from page. when i clicks on back button of browser i enters in my profile again.

  • logoutprakash June 24, 2013 at 8:03 PM

    thanks dude sharing the information its working for me logout code

  • Still session is there after logout alsonagendra January 24, 2014 at 11:42 PM

    Pls help me out how to invalidate the session once you logged out. it means once you logged out , the application should not allow you to go forward/backward untill you login.

  • problem in understanding session.invalidate()PRERNA CHHABRA April 26, 2014 at 11:34 PM

    In this code if i press back button from browser then I will be redirected to previous logout option. then how it defines that the session has been validated.

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