Struts2中的结果类型_result_type

Struts2中Result结果类型：

<?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="resultTypes" namespace="/r" extends="struts-default"><action name="r1"><result type="dispatcher">/1.jsp</result></action><action name="r2"><result type="redirect">/2.jsp</result></action><action name="r3"><result type="chain">r1</result></action><action name="r4"><result type="redirectAction">r2</result></action><action name="r5"><result type="chain"><param name="actionName">login</param><param name="namespace">/rt</param></result></action></package><package name="rt" namespace="/rt" extends="struts-default"><action name="login"><result>/r5.jsp</result></action></package></struts>