Struts2 Demo

最新推荐文章于 2021-03-20 02:31:44 发布

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最新推荐文章于 2021-03-20 02:31:44 发布

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原文链接：https://my.oschina.net/zhanggongming/blog/671366

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实现步骤：

1、添加依赖jar包

2、编写login.jsp文件、success.jsp文件、failure.jsp文件

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>LOGIN</title>
</head>

<body>
	<form action="<%=request.getContextPath()%>/login.action" method="post">
		户名：<input type="text" name="username"><br> 密码：<input
			type="password" name="password"><br> <input
			type="submit" value="login">
	</form>
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>SUCCESS</title>
</head>

<body>登录成功！！！
</body>
</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>FAILURE</title>
</head>

<body>
	登录失败，错误的用户名：
	<s:property value="username" />
	<br>
	<a href="<%=request.getContextPath()%>/login.jsp">返回</a>
</body>
</html>

3、编写LoginAction.java文件

package com.jack.action;

import com.opensymphony.xwork2.Action;

public class LoginAction implements Action {
	private String username;
	private String password;

	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() throws Exception {
		if (username.equals("struts2")) {
			return "loginSuccess";
		} else {
			return "loginFailure";
		}
	}
}

4、编写struts.xml文件

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
	<package name="myFirst" namespace="/" extends="struts-default">
		<action name="login" class="com.jack.action.LoginAction">
			<result name="loginSuccess">/success.jsp</result>
			<result name="loginFailure">/failure.jsp</result>
		</action>
	</package>
</struts>

5、编写web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	<display-name></display-name>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	<filter>
		<filter-name>struts2</filter-name>
		<!-- <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class> -->
		<filter-class>
			org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
		</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>struts2</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
</web-app>