pageaction.java

struts+spring+hibernate的学生管理系统 很适合新手研究

package limq.struts.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import limq.common.*;
import limq.hibernate.vo.*;
import java.util.*;
public class PageAction  extends BaseDispatchAction{
    
    public ActionForward execute(ActionMapping mapping,
			 ActionForm form,
			 HttpServletRequest request,
			 HttpServletResponse response)
throws Exception {
        String pageNo=request.getParameter("pageNo");
        String totalcount=request.getParameter("totalcount");
        String totalpage=request.getParameter("totalpage");
        int pagesize=2;
        PageInfo page =new PageInfo();
        page.setPageSize(pagesize);
        HashMap hp=null;
        History[] historys = null;
        String stu_name=null;
        HttpSession session = request.getSession();
        stu_name = (String) session.getAttribute("username"); 
        if(pageNo == null || totalcount == null || totalpage==null){
            page.setPageNo(1);           
            hp=super.getStudentsService().getStudentHistory(page,stu_name);
            page.setTatalCount(((Integer)hp.get("totalCount")).intValue());
            page.setTotalpage(((Integer)hp.get("totalPage")).intValue());      
        }else{
            page.setPageNo(Integer.parseInt(pageNo));
            page.setTatalCount(Integer.parseInt(totalcount));
            page.setTotalpage(Integer.parseInt(totalpage));
           hp=super.getStudentsService().getStudentHistory(page,stu_name);
           
        }
  
     historys =(History[]) hp.get("history");
     request.setAttribute("history",historys);
     request.setAttribute("pageinfo",page);    
        return mapping.findForward("success");
    }

}