Struts2 开发一个简单的Hello World

目录结构:

Struts2 开发一个简单的Hello World_第1张图片

struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
	

	<package name="default" extends="struts-default">
		<default-action-ref name="mainAction"/>
		<action name="mainAction" class="com.junzai.web.action.MainAction">
		<result name="index">/WEB-INF/jsp/index.jsp</result>
		</action>
	</package>

</struts>

web.xml

<?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">
  <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>
MainAction.java

package com.junzai.web.action;

public class MainAction {
	public String execute() {
		return  "index";

	}
}
index.jsp

<%@ 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>Insert title here</title>
</head>
<body>
Hello World!
</body>
</html>

结果显示:

Struts2 开发一个简单的Hello World_第2张图片


需要注意:

Struts2 开发一个简单的Hello World_第3张图片

上面的struts2命名可以是其他,但上下必须一样。



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