<?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">
<!-- method方法使得一个action处理多个请求，将后台action类中的每个方法配置成一个struts.xml中的一个action，最后都指向相同的action类
 <struts> 
    <package name="struts2demo" extends="struts-default" namespace="/"> 
        <action name="Login" class="zain.struts2.action.HelloWorldAction"  method="Login">
         <result name="uccess">/jsp/success.jsp</result> 
         <result name="failure">/jsp/failure.jsp</result> 
        </action> 
        <action name="Registry" class="zain.struts2.action.HelloWorldAction"  method="Registry"> 
        <result name="succe">/jsp/success.jsp</result> </action> 
    </package>
 </struts> -->


<!-- //通配符方法处理多个请求 ，*等同于{1}
 <struts>
     <package name="struts2demo" extends="struts-default" namespace="/"> 
       <action name="user_*" class="zain.struts2.action.HelloWorldAction"  method="{1}"> 
         <result name="uccess">/jsp/success.jsp</result> 
         <result name="failure">/jsp/failure.jsp</result> 
      </action> 
     </package> 
 </struts> -->


<!-- 感叹号方式 -->
<struts>
    <package name="struts2demo" extends="struts-default" namespace="/">
        <action name="user" class="zain.struts2.action.HelloWorldAction">
            <!-- result默认的name是success -->
            <result name="uccess">/jsp/success.jsp</result>
            <result name="failure">/jsp/failure.jsp</result>
        </action>
    </package>
</struts>
<!--使用感叹号方式的话还需要：
1. <constant name="struts.enable.DynamicMethodInvocation" value="http://www.mamicode.com/true"></constant>这条配置
2. 表单form的action=”action类名！方法名.action“
例如：
<form action="/struts/user!Login.action" method="post">
用户名:<input type="text" name="u.userName"><br>
密码:<input type="password" name="u.passWord">
<input type="submit" value="http://www.mamicode.com/登陆">
</form>
-->