1 public String redirect() {
2         message = "message中有值";
3         return "redirect";
4 }  

1 <package name="chapter3" namespace="/chapter3" extends="struts-default">
2         <action name="redirectAction" class="chapter3.action.Chapter3Action" method="redirect">
3             <result name="redirect" type="redirect">/redirect.jsp</result>
4         </action>
5 </package>  

1 <action name="redirectAction" class="chapter3.action.Chapter3Action" method="redirect">
2     <result name="redirect" type="redirect">/redirect.jsp?message=${message}</result>
3 </action>  

1 public String action2() {
2     message = "我是action2中设置的值";
3     return "action2";
4 }  

1 <package name="chapter32" namespace="/chapter32" extends="struts-default">
2     <action name="action2" class="chapter3.action.Chapter3Action" method="action2">
3         <result name="action2" type="chain">
4             <param name="actionName">redirectAction</param>
5             <param name="namespace">/chapter3</param>
6         </result>
7     </action>
8 </package>  

1 public String action3() {
2     message = "我是action3中设置的值";
3     return "action3";
4 }  

1 <action name="action3" class="chapter3.action.Chapter3Action" method="action3">
2     <result name="action3" type="redirectAction">redirectAction</result>
3 </action>  

1 public String action4() {
2     message = "我是action4中设置的值";
3     return "action4";
4 }  

1 <action name="action4" class="chapter3.action.Chapter3Action" method="action4">
2     <result name="action4" type="redirectAction">
3         <param name="actionName">redirectAction</param>
4         <param name="namespace">/chapter3</param>
5     </result>
6 </action>