Friendly JAVA: Login and Logout in struts2

learn java

login.jsp
<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ page language="java" contentType="text/html"%>

<html>
 <head>
 <title>Insert Data here!</title>
 <link href="<s:url value="/css/main.css"/>" rel="stylesheet"
 type="text/css"/>
</head>
 <body>
<s:form action="loginAction1" >
 <s:textfield name="userId" label="Login Id"/> 
 <s:password name="password" label="Password"/> 
 <s:submit value="Login" align="center"/>
 </s:form>
</body>
</html>

loginAction1
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package vaannila;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ActionContext;
import java.util.*;

public class loginAction1 extends ActionSupport {

 private String userId;
 private String password;

 @Override
 public String execute() throws Exception {

 if ("admin".equals(userId) && "admin".equals(password)) {
 Map session = ActionContext.getContext().getSession();
 session.put("logged-in", "true");
 return SUCCESS;
 } else {
 return ERROR;
 }
 }

 public String logout() throws Exception {

 Map session = ActionContext.getContext().getSession();
 session.remove("logged-in");
 return SUCCESS;
 }

 public String getPassword() {
 return password;
 }

 public void setPassword(String password) {
 this.password = password;
 }

 public String getUserId() {
 return userId;
 }

 public void setUserId(String userId) {
 this.userId = userId;
 }
}

struts.xml

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>
 <include file="example.xml"/>
 
 <package name="default" extends="struts-default">
 <action name="loginAction1" class="vaannila.loginAction1" >
 <result name="success" type="dispatcher">/success2.jsp</result>
 <result name="error" type="redirect">/login.jsp</result>
</action>

<action name="logoutAction" class="vaannila.logoutAction" >
 <result name="success" type="redirect">checkLogin.jsp</result>
</action>

 </package>
</struts>

success2.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ page language="java" contentType="text/html" import="java.util.*"%>
<html>
 <head>
 <title>Welcome, you have logined!</title>
</head>
 <body>
 Welcome, you have logined. 
 Session Time: <%=new Date(session.getLastAccessedTime())%>
 
 <a href="<%= request.getContextPath() %>/vaannila/logoutAction">Logout</a>
 
 </body>
</html>

logoutAction.java

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

package vaannila;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ActionContext;
import java.util.*;

public class logoutAction extends ActionSupport {
    @Override
public String execute() throws Exception {
    Map session = ActionContext.getContext().getSession();
    session.remove("logged-in");
    return SUCCESS;
    }
}

after logoutAction it wil go to struts.xml and then to

checkLogin.jsp

<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ page language="java" contentType="text/html" import="java.util.*"%>
<html>
 <head>
 <title>Check validate!</title>
</head>
 <body>
 <s:if test="#session.login != 'admin'">
 <jsp:forward page="login.jsp" />
 </s:if>
 </body>
</html>

output

Friendly JAVA

Wednesday, March 9, 2011

Login and Logout in struts2

4 comments:

java-8-streams-map-examples