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4 回答

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>Struts2练习</display-name>

<filter>

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

<!-- 特别说明如下 

struts2.3版本路径是org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 

struts2.5版本后路径是org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter -->

<filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>

</filter>

<filter-mapping>

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

<url-pattern>/*</url-pattern>

</filter-mapping>

</web-app>

---------------------------------------------------我是分割线--------------------------------------------

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">

<struts>

<package name="default" namespace="/" extends="struts-default">

<action name="HelloWorldAction" class="com.sadfoo.imooc.action.HelloWorldAction">

<!-- 定义逻辑视图和物理资源之间的映射 -->

<result name="success">/result.jsp</result>

</action>

</package>

</struts>

-------------------------------------------------------我是分隔符---------------------------------------------

action(HelloWorldAction)

package com.sadfoo.imooc.action;


import com.opensymphony.xwork2.ActionSupport;


/**

 * 

 * @author sadfoo 2018年6月28日下午12:41:09

 */

@SuppressWarnings("serial")

public class HelloWorldAction extends ActionSupport {

/*

* (non-Javadoc)

* @see com.opensymphony.xwork2.ActionSupport#execute()

*/

@Override

public String execute() throws Exception {

System.out.println("执行action");

return SUCCESS;

}

}

---------------------------------------------------------我是分割线------------------------------------------

result.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>练习struts2</title>

</head>

<body>

<h1>This is my first JSP test page!</h1>

</body>

</html>

------------------------------------------------我是分割线--------------------------------------------

访问地址和:http://localhost:8080/Struts2/HelloWorldAction.action

2 回复 有任何疑惑可以回复我~
#1

qq_拓拔草_0

我现在报这个错是咋回事啊。我用的Tomcat9 Type Status Report Message There is no Action mapped for namespace [/] and action name [] associated with context path [/HelloWorld]. Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.
2018-09-13 回复 有任何疑惑可以回复我~

谢谢楼主和回答者

0 回复 有任何疑惑可以回复我~

为什么我用了struts2.5版本后路径是org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter 后,tomacat无法启动,用了struts2.3版本路径是org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 这个后只是无法访问到网页

0 回复 有任何疑惑可以回复我~

https://img1.sycdn.imooc.com//5b34a8540001a3f602790202.jpg

我用的是struts2.6.15  

0 回复 有任何疑惑可以回复我~
#1

qq_袮D影孑_03909390

为什么我用了struts2.5版本后路径是org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter 后,tomacat无法启动,用了struts2.3版本路径是org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 这个后只是无法访问到网页
2018-08-15 回复 有任何疑惑可以回复我~

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