Struts中后台分页查询代码
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简单的后台代码, 分页查询。
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//根据姓名和联系人类型查找联系人信息;public ActionForward selectTypeIdAndPersonName(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response) throws IOException, ParseException {String check=request.getParameter("check");String name=null;if("button".equals(check)){name=request.getParameter("txtName");}else{name=new String(request.getParameter("txtName").getBytes("ISO-8859-1"),"GBK");}String id=request.getParameter("txtTypeId");Long typeid=new Long(0);int page=1;if(id!=null && !"".equals(id)){typeid=Long.parseLong(id);}//得到传过来的类型;String type=request.getParameter("type");List<Personmessagetype> list1=ims.selectAll();request.setAttribute("PersonMessageType", list1);//得到总记录数;int sum=ims.getSum(typeid,name);//把总记录数除以显示的条数,得到总页数;int sumPage=sum/8==0?sum/8:sum/8+1;//判断是上一页还是下一页;if("shouye".equals(type)){page=1;}else if("weiye".equals(type)){page=sumPage;}else if("shangyiye".equals(type)){page=page>=1?page-1:1;}else if("xiayiye".equals(type)){page=page<=sumPage?page+1:sumPage;}else{System.out.println("type为空");page=1;}request.setAttribute("sumPage",sumPage);request.setAttribute("currPage", page);request.setAttribute("sum", sum);List<Personmessage> list=ims.selectTypeIdandPersonMessageName(typeid,name,page);//得到联系人集合;request.setAttribute("PMessageList", list);//转发;return new ActionForward("/view/selectLianXiRen.jsp");}?