Java struts login page application source code
This application is for beginner. copy paste the code to respective folder. The application shows you how login with struts work.
Login page
Login.jspJava struts login page application source code
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title> Java struts web application source code </title>
</head>
<body>
<h2>Sample web application</h2>
<s:actionerror />
<s:form action="login.action" method="post">
<s:textfield name="username" key="label.username" />
<s:password name="password" key="label.password" />
<s:submit method="execute" key="label.login" align="center" />
</s:form>
</body>
</html>
This jsp teach you how struts tag works
<%@ taglib prefix="s" uri="/struts-tags"%> adding a struts tag to jsp page
<s:form action="login.action" method="post"> as like form in html. once you submit the form the corresponding login action in struts.xml is called.
key="label.login" will be defined in application.properties
Welcome page.jsp ( Second page)
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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> struts JSP jquery application</title>
</head>
<body>
<h2> Welcome to java lazy blog, Java web application </h2>
</body>
</html>
Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Struts2 application</display-name>
<filter>
<filter-name>StrutsNew</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>StrutsNew</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>Login.jsp</welcome-file>
</welcome-file-list>
</web-app>
---
<filter>
<filter-name>StrutsNew</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>StrutsNew</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
Through this filter class in struts.xml we are re directing each every url [ <url-pattern>/*</url-pattern>] through filterdispatcher <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
Jar file needed. you have to put this in lib folder
LoginAction.java inside src folder
package com.blazy.strutsSpringapplication;
/*
* Action class in struts
*/
public class LoginAction {
private String username = null;
private String password = null;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String execute()
{
if(username.equals("u") & (password.equals("p")))
// code for validation
{
System.out.println(" Struts frame work example download "+username + password);
return "success";
}
else
return "error";
}
}
--
public class LoginAction implements ......
ApplicationResources.properties file inside resources folder
label.username = username
label.password = password
label.login = Login
error.login = Invalid user try again later
Struts.xml file inside resource folder
<?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>
<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="false" />
<constant name="struts.custom.i18n.resources" value="ApplicationResources" />
<package name="default" extends="struts-default" namespace="/">
<action name="login" class="com.org.strutsNew.LoginAction" converter="" method="save">
<result name="success">Welcome.jsp</result>
<result name="error">Login.jsp</result>
</action>
</package>
</struts>
we have created the login class above
<action name="login" class="com.org.strutsNew.LoginAction" converter="" method="save">
This is only a small program. please try this.
Wish you a Happy New year
+Deepu A.B.
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