Struts2result类型

Struts2 result类型

1.dispatcher:服务器跳转到页面,通常来处理JSP,默认类型。

2.redirect:重定向到页面。

Action:

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

struts.xml

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>  

注意的地方:外部中转不能带值过去,并且页面不能受保护

传参数:

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

 页面:

${param.message}<br>

3.chain:服务端跳转到Action;

action:

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

struts.xml

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>  

4.redirectAction:外部跳转到Action;

action:

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

struts.xml

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

 跨命名空间的外部跳转:

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

struts.xml

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>  
原文地址:https://www.cnblogs.com/elleniou/p/2728237.html