struts中从一个命名空间跳转到另一个命名空间的解决办法

<?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><package name="login" extends="struts-default" namespace="/login"><!-- 登录 后跳转到另外一个命名空间 --><action name="login" class="indexAction" method="login"><result name="success" type="redirectAction"><param name="namespace">/index</param><param name="actionName">forward</param></result><result name="nopassword">/WEB-INF/jsp/index/valid/pwderror.jsp</result><result name="nouser">/WEB-INF/jsp/index/valid/nouser.jsp</result></action><action name="vaildCode" class="indexAction" method="vaildCode"><result name="success" type="chain">login</result><result name="input">/WEB-INF/jsp/index/valid/validCode.jsp</result></action></package><!-- 首页 --><package name="index" extends="base" namespace="/index"><action name="forward" class="indexAction" method="forward"><result>/WEB-INF/jsp/index/valid/forward.jsp</result></action><action name="index" class="indexAction" method="index"><result name="success">/WEB-INF/jsp/index/index.jsp</result></action></package></struts>

<result name="success" type="redirectAction">        <param name="namespace">/index</param>    要跳转的命名空间<param name="actionName">forward</param>  跳转的action</result>