struts异常There is no Action mapped for namespace [/] and action name [] ......
我用的maven项目管理，这个问题是用jetty服务器出的，tomcat可以正常运行跑通。之前tomcat也出现这个问题，后来不知道不知不觉也就没这问题了，昨天换jetty容器了，问题重现，我估计还是当初配置的问题，或是什么命名空间的原因，找了半天没找到，所以求助大家。

下面是我的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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

    version="2.5">

    <filter>

        <filter-name>Set Character Encoding</filter-name>

        <filter-class>com.bjhit.eranges.utils.SetCharacterEncodingFilter</filter-class>

        <init-param>

            <param-name>encoding</param-name>

            <param-value>UTF-8</param-value>

           </init-param>

    </filter>

    <filter-mapping>

        <filter-name>Set Character Encoding</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

    <filter-mapping>

        <filter-name>Set Character Encoding</filter-name>

        <url-pattern>*.*</url-pattern>

    </filter-mapping>

    <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>

    <filter-mapping>

        <filter-name>struts2</filter-name>

        <url-pattern>*.action</url-pattern>