struts2访问jsp页面404

问题描述

在搭建struts2环境的时候，拷贝了web.xml，拷贝了struts.xml，拷贝了jar包。运行，正常，访问jsp页面，报404错误。

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>hellostruts2</display-name>
	
	<filter>
		<filter-name>struts</filter-name>
		<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>struts</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>


</web-app>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
          "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>

    <package name="xxxx" extends="struts-default">
    	<action name="hello" class="com.zengmg.strtus.HelloAction" method="execute">
    		<result name="success">/success.jsp</result>
    	</action>
    </package>
    
</struts>

访问：

http://localhost:8080/strutsfiledemo/success.jsp。报 404！

原因：

因为struts.xml配置了的action没有java类与其对应，所以报错。但是我没把控制台的信息拉到上面看，导致没看到信息。

Caused by: Action class [com.zengmg.strtus.HelloAction] not found - action - file:/E:/apache-tomcat-8.0.26/webapps/strutsfiledemo/WEB-INF/classes/struts.xml:8:82
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:434)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:378)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:495)
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:286)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:234)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 16 more

解决方法：

把struts.xml的action删了，或者写好java类，配置正确action。