我現在報這個錯是咋回事啊。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.
2018-06-28
<?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練習</display-name>
<filter>
<filter-name>struts2</filter-name>
<!-- 特別說明如下?
struts2.3版本路徑是org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter?
struts2.5版本后路徑是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>
---------------------------------------------------我是分割線--------------------------------------------
<?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">
<!-- 定義邏輯視圖和物理資源之間的映射 -->
<result name="success">/result.jsp</result>
</action>
</package>
</struts>
-------------------------------------------------------我是分隔符---------------------------------------------
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("執行action");
return SUCCESS;
}
}
---------------------------------------------------------我是分割線------------------------------------------
<%@ 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>練習struts2</title>
</head>
<body>
<h1>This is my first JSP test page!</h1>
</body>
</html>
------------------------------------------------我是分割線--------------------------------------------
訪問地址和：http://localhost:8080/Struts2/HelloWorldAction.action
2018-10-17
謝謝樓主和回答者
2018-08-15
為什么我用了struts2.5版本后路徑是org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter 后，tomacat無法啟動，用了struts2.3版本路徑是org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 這個后只是無法訪問到網頁
2018-06-28
我用的是struts2.6.15 ?