Login Using Struts2 and Eclipse

In this Tutorial we are performing login using equals() method.
Project View :


login.jsp
This is page for user's input and here we using struts tags and on submit action is login.
 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"  
   pageEncoding="ISO-8859-1"%>  
 <%@ taglib prefix="s" uri="/struts-tags" %>  
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
 <html>  
 <head>  
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">  
 <title>Login page</title>  
 </head>  
 <body>  
 <h1>Login</h1>  
 <s:form action="login">  
 <s:textfield label="User Name:" name="uname"/>  
 <s:password label="Password:" name="upass"/>  
 <s:submit value="Login"/>  
 </s:form>  
 </body>  
 </html>

struts.xml
This file contains information about which action class to be invoked. here we are invoking LoginAction class using action name login present in index.jsp's page form tag on submit button click. 
 <?xml version="1.0" encoding="UTF-8"?>  
 <!DOCTYPE struts PUBLIC  
   "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"  
   "http://struts.apache.org/dtds/struts-2.0.dtd">  
   <struts>  
   <package name="log" namespace="/" extends="struts-default">  
   <action name="login" class="com.webideaworld.blog.LoginAction" method="execute">  
   <result name="success">/user.jsp</result>  
   <result name="error">/login.jsp</result>  
   </action>  
   </package>  
   </struts>

web.xml
This file is providing Configuration and deployment information.
 <?xml version="1.0" encoding="UTF-8"?>  
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  
  <display-name>ProjLogin</display-name>  
  <welcome-file-list>  
   <welcome-file>login.jsp</welcome-file>  
    </welcome-file-list>  
    <filter>  
    <filter-name>struts2</filter-name>  
    <filter-class>  
      org.apache.struts2.dispatcher.FilterDispatcher  
    </filter-class>  
   </filter>  
   <filter-mapping>  
    <filter-name>struts2</filter-name>  
    <url-pattern>/*</url-pattern>  
   </filter-mapping>  
 </web-app>

LoginAction.java
This is a POJO class and it is working as action class for Struts.
 package com.webideaworld.blog;  
 import com.opensymphony.xwork2.Action;  
 public class LoginAction implements Action {  
      private String uname;  
      private String upass;       
      public String execute() throws Exception {  
           if (getUname().equals("him") && getUpass().equals("pass123")) {  
                return SUCCESS;  
           }  
           else {  
                return ERROR;       
           }  
      }  
      public String getUname() {  
           return uname;  
      }  
      public void setUname(String uname) {  
           this.uname = uname;  
      }  
      public String getUpass() {  
           return upass;  
      }  
      public void setUpass(String upass) {  
           this.upass = upass;  
      }  
 }

user.jsp
This is a success page that displays hello with user name.
 <%@ page language="java" contentType="text/html; charset=ISO-8859-1"  
   pageEncoding="ISO-8859-1"%>  
   <%@ taglib prefix="s" uri="/struts-tags" %>  
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  
 <html>  
 <head>  
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">  
 <title>Insert title here</title>  
 </head>  
 <body>  
 hello <s:property value="uname"/>  
 </body>  
 </html>


Output:
Login Page:
Success Page:


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