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***mjm*** · (03-29-2012)

Today we are going to learn about
how to create a login form and authenticate using struts with database

First import the required tld's that i have included in project so don't worry about that.
Lets create a simple form where it gets username and password as input

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<b><font color="Green">Tutorial Pruodly Presented by <a href="http://s2sgateway.com">http://s2sgateway.com</a></font></b>
<html:form action="/login" >
Username<html:text property="username"/>
Password<html:password property="password"/>
<html:submit/>
</html:form>
</body>
</html>

Now create two pages for ex success.jsp for authenticated page and failure.jsp for failure message and re-login option in that page
Lets create the struts-config.xml file

The Action form class contains getter and setter methods,The action class code contains the call to form class and connection to mysql and check the username and password are correct.

package com.s2sgateway.action;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.s2sgateway.form.LoginForm;
public class LoginAction extends Action {
String r="";
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
LoginForm loginForm = (LoginForm) form;
String username=loginForm.getUsername();
String password=loginForm.getPassword();
ResultSet rs;
try
{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/struts","root","root");
Statement st=con.createStatement();
rs=st.executeQuery("select * from login");
while(rs.next())
{
System.out.println("Successfull");
if((username.equals(rs.getString(1)))&&(password.equals(rs.getString(2))))
{
return mapping.findForward("success");
}
else
{
return mapping.findForward("failure");
}
}
}
catch(Exception e)
{}
return mapping.findForward®;
}}

To run this program you need mysqlconnector i have added in lib folder.For connection create a database named "struts" and create table named login with username and password fields

Download the Struts login project by clicking link below

It contains the war file import in to your eclipse and run this project.Happy coding.

alexrabe · 04-27-2012, 03:57 PM

I am trying to download source code, but getting link not found error.

Kindly give us new link location so that download source code.

Thanks
Alex

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