Simple Login Validation Using Struts – Struts Example
A simple login validation using Struts2. This code is tested using NetBeans 8.0.2
- File–>New Project–>Java –>Web Application
- Enter a web application name and click Next
- Next –>and again Next
- Select Struts2 –>Finish
JSP Files:
Create 3 JSP files,
1. login.jsp
2. success.jsp
3. error.jsp
Right Click source Packages and create 2 Java packages with name: Model and Dao
Inside Model package create a Java class file
login.java
Inside Dao package create a Java class file
dao.java
Directory Structure:
login.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Login Page</title>
</head>
<body>
<s:form action="check">
<s:textfield name="name" label="Login Name"/>
<s:textfield type="password" name="password" label="Password"/>
<s:submit value="Login"/>
</s:form>
</body>
</html>
success.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Successfully Logged in!!!</h1>
</body>
</html>
error.jsp
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>Error: Username or Password is incorrect!</h1>
</body>
</html>
login.java
public class login {
String name;
String password;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
dao.java
import com.opensymphony.xwork2.ActionSupport;
public class dao extends ActionSupport {
String name,password;
public String execute()
{
if((name.equals("Alpha"))&&(password.equals("alpha")))
{
return "success";
}
else
{
return "error";
}
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
struts.xml
<struts>
<include file="example.xml"/>
<!-- Configuration for the default package. -->
<package name="default" extends="struts-default">
<action name="check" class="Dao.dao" method="execute">
<result name="success">/success.jsp</result>
<result name="error">/error.jsp</result>
</action>
</package>
</struts>
web.xml
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
<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>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>/login.jsp</welcome-file>
</welcome-file-list>
</web-app>
Output:
