JSP+EXt2.0实现分页的方法_JSP编程_

 Ext.onReady(function(){ var sm = new Ext.grid.CheckboxSelectionModel(); var cm = new Ext.grid.ColumnModel([ new Ext.grid.RowNumberer(), sm, {header:'编号',dataIndex:'id',sortable:true}, {header:'名称',dataIndex:'name',sortable:true}, {header:'性别',dataIndex:'sex',sortable:true,renderer:function(value){ if(value=='male'){ return " 红男 "; }else{ return " 绿女 "; } }}, {header:'描述',dataIndex:'descn',sortable:true} ]); cm.defaultSortable = true; var ds = new Ext.data.Store({ proxy: new Ext.data.HttpProxy({url:'page.jsp'}), reader: new Ext.data.JsonReader({ totalProperty: 'totalProperty', root: 'root' }, [ {name: 'id',mapping:'id'}, {name: 'name',mapping:'name'}, {name:'sex',mapping:'sex'}, {name: 'descn',mapping:'descn'} ]), remoteSort:true }); var grid = new Ext.grid.GridPanel({ el: 'grid', title:'Ext Grid Test', width:450, height:410, trackMouseOver:false, loadMask: {msg:'正在加载数据，请稍侯……'}, store:ds, cm: cm, sm:sm, bbar: new Ext.PagingToolbar({ pageSize: 5, store: ds, displayInfo: true, displayMsg: '当前显示 {0} - {1}条记录 /共 {2}条记录', emptyMsg: "No topics to display" }) }); grid.render(); ds.load({params:{start:0, limit:5}}); }); 

<%@ page language="java" pageEncoding="UTF-8"%><% String start = request.getParameter("start"); String limit = request.getParameter("limit"); int index = Integer.parseInt(start); int pageSize = Integer.parseInt(limit); String json = "{totalProperty:100,root:["; String sex=""; for (int i = index; i < pageSize + index; i++) { if(i%2==0) { sex="male"; } else{ sex="female"; } json += "{id:" + i + ",name:'" + i + "',sex:'"+sex+"',descn:'descn" + i + "'}"; if (i != pageSize + index - 1) { json += ","; } } json += "]}"; response.getWriter().write(json); System.out.print(json); %>