struts2结果处理方式（struts.xml 转发，重定向配置）

叁歲伎倆 2022-03-24 20:16 226阅读 0赞

1.web.xml (配置struts2核心过滤器)

<filter>
      	<filter-name>struts2</filter-name>
      	<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>

2.struts.xml(struts2主配置文件)

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts PUBLIC
    	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
    	"http://struts.apache.org/dtds/struts-2.3.dtd">
    <struts>
    	<constant name="struts.devMode" value="true"></constant>
    	<package name="result" namespace="/" extends="struts-default">
    		
    		<action name="Demo1Action" class="com.it.action.Demo1Action">
    			<result name="success" type="dispatcher">/hello.jsp</result>
    		</action>
    		
    		<action name="Demo2Action" class="com.it.action.Demo2Action">
    			<result name="success" type="redirect">/hello.jsp</result>
    		</action>
    		
    		<action name="Demo3Action" class="com.it.action.Demo3Action">
    			<result name="success" type="chain">
    				<param name="actionName">Demo2Action</param>
    				<param name="namespace">/</param>
    			</result>
    		</action>
    		
    		<action name="Demo4Action" class="com.it.action.Demo4Action">
    			<result name="success" type="redirectAction">
    				<param name="actionName">Demo1Action</param>
    				<param name="namespace">/</param>
    			</result>
    		</action>
    	</package>
    	
    	
    </struts>

3.Action类

demo1：

package com.it.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class Demo1Action extends ActionSupport{
    
    	@Override
    	public String execute() throws Exception {
    		System.out.println("Demo1");
    		return SUCCESS;
    	}
    	
    }

demo2：

package com.it.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class Demo2Action extends ActionSupport{
    
    	@Override
    	public String execute() throws Exception {
    		System.out.println("Demo2");
    		return SUCCESS;
    	}
    	
    }

demo3：

package com.it.action;
    
    import com.opensymphony.xwork2.ActionSupport;
    
    public class Demo3Action extends ActionSupport{
    
    	@Override
    	public String execute() throws Exception {
    		System.out.println("Demo3");
    		return SUCCESS;
    	}
    	
    }

demo4：

hello.jsp:

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    	<h1>testDemo</h1>
    </body>
    </html>

效果：

（1）转发

地址：![20190121121602334.png][]

![20190121121632137.png][]

控制台：

![20190121121643961.png][]

（2）重定向

地址：![20190121121753633.png][]

![201901211218346.png][]

![20190121121846460.png][]

（3）转发到Action2

地址：![20190121122202288.png][]

![20190121122145858.png][]

![20190121122235295.png][]

（4）重定向到Action

地址：![20190121122339903.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTY2Nzcy_size_16_color_FFFFFF_t_70][]

![20190121122350550.png][]

[20190121121602334.png]: /images/20220325/68d2d62553334e41ae7647adf838c0e0.png
[20190121121632137.png]: /images/20220325/b16387e35a964faeb756d8dda51c7ea0.png
[20190121121643961.png]: /images/20220325/bb4604a973204986ac04a6efbb8676d5.png
[20190121121753633.png]: /images/20220325/cedf431ec85b401ca42fd7522294f74b.png
[201901211218346.png]: /images/20220325/2385c2824cce4fc98f99383cb65f1745.png
[20190121121846460.png]: /images/20220325/5c8643b4869245ab9e8561d2c72f471c.png
[20190121122202288.png]: /images/20220325/a990d471675243bdbcdec430d8dd0cae.png
[20190121122145858.png]: /images/20220325/f1d31b22583d45e9b2014ca8aa0c4ae7.png
[20190121122235295.png]: /images/20220325/c9b600f307a3477b8ca007867a411305.png
[20190121122339903.png]: /images/20220325/264193013dac41baa59288878530f839.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQxNTY2Nzcy_size_16_color_FFFFFF_t_70]: /images/20220325/f016b8b0050e4ad9b7518c8e335cf935.png
[20190121122350550.png]: /images/20220325/22138be3d18f42bda2124518b52689da.png