struts2出错（web.xml）

[liu123zhen]

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>struts2_add</display-name>
<welcome-file-list>
<welcome-file>input.jsp</welcome-file>
<welcome-file>show.jsp</welcome-file>
</welcome-file-list>
<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>

struts.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>
<package name="default" namespace="/" extends="struts-default">
<action name="add" class="action.CalculateAction" method="add">
<result name="show">/show.jsp</result>
</action>
<action name="add" class="com.action.CalculateAction" method="sub">
<result name="show">/show.jsp</result>
</action>
<action name="add" class="com.action.CalculateAction" method="mul">
<result name="show">/show.jsp</result>
</action>
<action name="add" class="com.action.CalculateAction" method="div">
<result name="show">/show.jsp</result>
</action>
</package>
</struts>

运行时出现404，去掉web.xml中的<filter>后不再出错。
求解！

[鲨鱼也是鱼]

咱们先不说你的action 写的怎么样， 先说show.jsp 的位置，在说<action name="add"> 这么多都是add 估计就是是计算机也得懵逼吧

[尼古拉斯-全蛋]

访问了什么出现了404