The principle is this: Click the URL, link to the frame (one request), and configure MonitorForwardAction.do in the framework, it will go to make a request (this is the second request), so after a request, the east and west in Request Disappearing, so the MonitorForwardAction does not reach the attribute from the beginning, at this time, if you want to click the pass value, you should set it into the session, but remember to take the value after it takes it REMOVE
The second point to pay attention, is similar to this: In a frame page similar to the following, click on a link above Frame, generate a request, want to make it displayed on the page below, should do this: The following page is the page of the above-mentioned frame page OperationList Frame has arrived by the second request, which is: "Target =" infoDetail ">
<% @ Taglib Uri = "http://struts.apache.org/tags-html" prefix = "html"%> <% @ Taglib URI = "http://java.sun.com/jsp/jstl/fmt "prefix =" fmt "%> <% @ Taglib URI =" http://java.sun.com/jsp/jstl/core "prefix =" c "%>