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 int pagenum=0;
  int pagesize = 4;
  int nowpage = 1;
String showpage = request.getParameter("page");
  String sdept1 = request.getParameter("selectdept");
 if(showpage!=null){
   nowpage = Convertutil.strtoint(showpage);
  }
List<ManageExamDTO>examlist = dao.findall();
  List<ManageExamDTO>list1 = new ArrayList<ManageExamDTO>();
 List<ManageExamDTO>list2 = new ArrayList<ManageExamDTO>();
if(sdept==null||sdept.equals(""))
   for(ManageExamDTO dto : examlist){
     list1.add(dto);
   }
  }else if(sdept!=null&&!sdept.equals("")){
   for(ManageExamDTO dto : examlist){
    if(dto.getSdept().indexOf(sdept)>=0){
     list1.add(dto);
    }
   }
  }else{
   for(ManageExamDTO dto : examlist){
    list1.add(dto);
  }
  }
  for(int i=(nowpage-1)*pagesize;i<nowpage*pagesize;i++){
   if(i>=list1.size()){
    break;
   }
   ManageExamDTO dto = list1.get(i);
   list2.add(dto);
  }£»
request.setAttribute("examlist",list2);
 request.setAttribute("nowpage", nowpage);
  request.setAttribute("pagenum", pagenum);


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