eclipse测试Struts2配置时，控制台报错，浏览器也总是显示404错误。

Question

刚学struts照着书本和网上的很多小例子来测试自己的struts配置的对不对，但是总是遇到404错误下面是我导入的jar包。（把struts的jar包做成了user Libraries，在工程的build path直接导入的，反正跟直接粘贴在web-inf/lib下结果都一样）下面是web.xml内容<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">   <display-name>12</display-name>    <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>   <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>这是Struts.xml内容 <?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>     <package name="default" namespace="/" extends="struts-default"> <action name="Test" class="com.action.Test">             <result name="success">/helloworld.jsp</result>         </action>     </package>     <!-- Add packages here --> </struts>这是报错信息十二月 14, 2017 9:35:10 下午 org.apache.catalina.startup.SetContextPropertiesRule begin警告: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.jee.server:12' did not find a matching property.十二月 14, 2017 9:35:11 下午 org.apache.catalina.core.StandardContext filterStart严重: Exception starting filter struts2java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)。。。。十二月 14, 2017 9:35:11 下午 org.apache.catalina.core.StandardContext startInternal严重: One or more Filters failed to start. Full details will be found in the appropriate container log file十二月 14, 2017 9:35:11 下午 org.apache.catalina.core.StandardContext startInternal严重: Context [/12] startup failed due to previous errors十二月 14, 2017 9:35:11 下午 org.apache.catalina.startup.HostConfig deployDescriptor信息: Deployment of configuration descriptor C:\Users\Administrator\eclipse-workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf\Catalina\localhost\12.xml has finished in 204 ms十二月 14, 2017 9:35:11 下午 org.apache.catalina.startup.HostConfig deployDescriptor信息: Deploying configuration descriptor C:\Users\Administrator\eclipse-workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\conf\Catalina\localhost\struts2-blank.xml十二月 14, 2017 9:35:11 下午 org.apache.catalina.startup.SetContextPropertiesRule begin警告: [SetContextPropertiesRule]{Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:struts2-blank' did not find a matching property.十二月 14, 2017 9:35:12 下午 org.apache.catalina.startup.TldConfig execute信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.2017-12-14 21:35:13,091 DEBUG [localhost-startStop-1] log4j2.Log4j2Logger (Log4j2Logger.java:73) - Found following implementations of FileManager interface: [system, jboss]。。。。我在网上找很久解决办法。也都试了。。并没有用。是我工程就建的不对么？求指点一下，刚开始学就卡住了。。。

Answer 1

你试试把两个<filter-name>struts2</filter-name>里面改为<filter-name>struts</filter-name>

Answer 2

一样，第一个struts的配置弄了两天，还是404错误。我就放弃了。