struts2 redirect-action传递参数解决方案

我想在Post被Save 成功之后直接转到 viewPost 页面该页面显示主贴及所有跟贴

也就是由savePostaction 转到 viewPostaction 并且要将主贴的postid作为参数传过去配置如下

<package name=post namespace=/post extends=strutsdefault>

<action name=savePost method=savePost class=ngfanppbbspostwebactionPostAction >

<result type=redirectaction>viewPost?postid=${postid}</result>

<result name=input>/WEBINF/pages/post/editjsp</result>

</action>

<action name=viewPost class=ngfanppbbspostwebactionPostAction method=viewPost>

<result>/WEBINF/pages/post/viewjsp</result>

</action>

</package>

Note: 红色粗体部分 viewPost?postid=${postid} 不能写成 viewPostaction?postid=${postid}