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JSP+EXt2.0实现分页的方法

　　本文标签：JSP,EXt2.0,分页

本文实例讲述了JSP+EXt2.0实现分页的方法 。分享给大家供大家参考 。具体如下：

JavaScript代码：

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 " <span style=color:red;font-weight:bold;>红男 </span> <img src=./img/125.gif>"; 
    }else{ 
     return " <span style=color:green;font-weight:bold;>绿女 </span> <img src=./img/123.gif>"; 
    }
    }}, 
    {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}}); 
});

JSP代码：

<%@ 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); 
%>

希望本文所述对大家的JSP程序设计有所帮助 。