Eclipse 搭建Struts2

Eclipse版本 Mars Release (4.5.0)

Struts版本 struts-2.5.20 下载地址：https://struts.apache.org/download.cgi#struts2520

一、创建web项目

命名为MyStruts2

勾选web.xml

二、拷贝struts的jar包

从struts-2.5.20-all\struts-2.5.20\lib拷贝jar文件，复制到WEB-INF\lib文件夹下

然后配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" 
 id="WebApp_ID" version="3.1">
  <display-name>MyStruts2</display-name>
  
  <filter>
  	<filter-name>struts2</filter-name>
  	<filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
  	<filter-name>struts2</filter-name>
  	<url-pattern>/*</url-pattern>
  </filter-mapping>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

　　路径为：

然后创建struts.xml, 路径为src/struts.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
	"http://struts.apache.org/dtds/struts-2.5.dtd">
<!-- START SNIPPET: xworkSample -->
<struts>
   <!-- 是否开启动态方法调用 -->
    <constant name="struts.enable.DynamicMethodInvocation" value="true" />
	<package name="default" namespace="/" extends="struts-default">
		 <action name="login" class="com.example.struts2.LoginAction" method="login">
			<result name="success">/WEB-INF/success.jsp</result>
			<result name="error">/WEB-INF/error.jsp</result>
		</action> 
	</package>
</struts>

三、进行测试

1、创建index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>  
    <form action="login.action" method="post">  
        用户名：<input type="text" name="username">  
        密码：<input type="text" name="password">  
        <input type="submit" value="提交">  
    </form>  
</body>
</html>

2、创建error.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"  pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>  
    Error!  
</body>
</html>

3、创建success.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>  
    Success!  
</body>
</html>

4、新建一个Servlet类，用来将输入的用户名和密码进行测试，使用户名如果正确跳转到success页面，否则到error页面(继承ActionSupport与否都可以)

package com.example.struts2;

import com.opensymphony.xwork2.ActionSupport;
import javax.servlet.http.HttpServletRequest;  
import org.apache.struts2.ServletActionContext;
 
public class LoginAction extends ActionSupport {
	
	HttpServletRequest req = ServletActionContext.getRequest();
	String username = req.getParameter("username");
	String password = req.getParameter("password");
	
	public String login(){
		if("Larry".equals(username) 
				&& "123456".equals(password)){
			return "success";
		}else{
			return "error";
		}
	}
	
}

5、测试接口

1） Success

2）Error

参考：

1、eclipse下简单配置struts2.5.8

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