struts2出错Unable to load configuration. - action - file:/D:/workspace/……
struts.xml是这样的

XML code

<?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>    <!--     <constant name="struts.enable.DynamicMethodInvocation" value="false" />    <constant name="struts.devMode" value="false" />    <package name="default" namespace="/" extends="struts-default">        <default-action-ref name="index" />        <global-results>            <result name="error">/error.jsp</result>        </global-results>        <global-exception-mappings>            <exception-mapping exception="java.lang.Exception" result="error"/>        </global-exception-mappings>        <action name="index">            <result type="redirectAction">                <param name="actionName">HelloWorld</param>                <param name="namespace">/example</param>            </result>        </action>    </package>    <include file="example.xml"/>     -->              <constant name="struts.devMode" value="true" />    <!-- <constant name="" value="GBK"></constant> -->    <package name="pLogin" extends="struts-default" namespace="/">       <action name="login" class="com.test.action.LoginAction" >               <result>/login.jsp</result>              <result name="ok">                   /login.jsp              </result>       </action>    </package>                <!-- Add packages here --></struts>

在没定义class的时候是可以执行的，定义之后直接输入http://localhost:8080/struts/login.jsp不能执行并出现如下错误：
The requested resource (/struts/login.jsp) is not available.
这是什么原因啊

[解决办法]
Action class [com.test.action.LoginAction] not found
[解决办法]

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Action class [com.test.action.LoginAction] not found