Data preprocessing prior to STRUTS2 action

Data preprocessing prior to STRUTS2 action
Before entering the updatedormitory.jsp page, get the message of dormitory and buildings and put it into the value stack. The page can be obtained.
<TD Align="center"><a href=" Beforeupdatedormitory? dormitory_id=${dormitory_id}"> Modify </a>
<action name= "beforeupdatedormitory" class=" Com.wolf.dormitoryManage.action.AdminAction " Method=" Beforeupdatedormitory " > <result>/jsp/updatedormitory.jsp</result>         </Action>

public String beforeupdatedormitory () { Dormitorydao dao = new Dormitorydaoimpl (); int Dormitoryid = new Integer (servletactioncontext. Getrequest(). GetParameter ("dormitory_id")); Dormitory = dao. Getbydormitoryid (Dormitoryid);Buildingdao Dao2 = new Buildingdaoimpl (); Buildings = dao2. List (); return SUCCESS;    }


From for notes (Wiz)

Data preprocessing prior to STRUTS2 action