在使用struts2上傳時(shí)，出現(xiàn)了404錯誤,無論是訪問index.jsp還是jsp目錄下的01.jspstruts.xml：<?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.enable.DynamicMethodInvocation" value="false" />??? <constant name="struts.devMode" value="true" />??? <package name="default" namespace="/" extends="struts-default">?? ??? ??? ?<action name="upload" class="com.imooc.action.FileUploadAction">?? ??? ??? ??? ?<result>index.jsp</result>?? ??? ??? ??? ?<result name="input">error.jsp</result>?? ??? ??? ??? ?<!-- 配置攔截器信息來限制上傳文件的大小和類型 -->?? ??? ??? ??? ?<interceptor-ref name="fileUpload">?? ??? ??? ??? ?<param name="allowedTypes">image/bmp,image/x-png,image/gif,image/jpg</param>?? ??? ??? ??? ?<param name="maximumSize">2097152</param>?? ??? ??? ??? ?</interceptor-ref>?? ??? ??? ??? ?<interceptor-ref name="defaultStack"></interceptor-ref>?? ??? ??? ?</action>??? </package>web.xml:<?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_3_0.xsd" id="WebApp_ID" version="3.0">? <display-name>upload_download2</display-name>? <!-- struts2配置 -->??? <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></web-app>