如何通过JSP+EXt2.0实现分页？
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。
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