全局结果集 global-results | extends
struts.xml
<?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.devMode" value="true" />
<package name="user" namespace="/user" extends="struts-default">


<global-results>
<result name="mainpage">/main.jsp</result>
</global-results>

<action name="index">
<result>/index.jsp</result>
</action>

<action name="user" namespace="/admin" extends="user">
<action name="admin" class="com.bjsxt.struts2.user.action.AdminAction">
<result>/admin.jsp</result>
</action>
</package>
</struts>