ext 例子
1.grid
web
js
jsp(后台处理)
web
<?xml version="1.0" encoding="UTF-8" ?>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Grid3</title>
<link rel="stylesheet" type="text/css"
href="ext3/resources/css/ext-all.css" />
<script type="text/javascript" src="ext3/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="ext3/ext-all.js"></script>
</head>
<body>
<script type="text/javascript" src="grid3.js"></script>
<div id="grid3" style="width: 100%;height: 100%">
</div>
</body>
</html>
js
Ext.onReady(function(){
Ext.BLANK_IMAGE_URL = 'extjs/resources/images/default/s.gif';
Ext.QuickTips.init();
var sm = new Ext.grid.CheckboxSelectionModel();
var cm = new Ext.grid.ColumnModel([
new Ext.grid.RowNumberer(),
sm,
{header:'编号',dataIndex:'id',sortable:true},//设置编号排序
{header:'名称',dataIndex:'name'},
{header:'描述',dataIndex:'descn'},
{header:'其他',dataIndex:'other'}
]);
//proxy直接去读取josn数据
var ds = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({url:'gridjson.jsp'}),//提交的页面
reader: new Ext.data.JsonReader({
totalProperty: 'totalProperty',
root: 'root',
successProperty :'success'
}, [
{name: 'id',mapping:'id',type:'int'},
{name: 'name',mapping:'name',type:'string'},
{name: 'descn',mapping:'descn',type:'string'},
{name: 'other',mapping:'other',type:'string'}
])
});
//设置分页
var grid = new Ext.grid.GridPanel({
el: 'grid3', //页面对应的层ID
ds: ds,
sm: sm,
cm: cm,
width:700,
height:280,
bbar: new Ext.PagingToolbar({
pageSize: 10,
store: ds,
displayInfo: true,
displayMsg: '显示第 {0} 条到 {1} 条记录，一共 {2} 条',
emptyMsg: "没有记录"
})
});
//el:指定html元素用于显示grid
grid.render();//渲染表格
ds.load({params:{start:0, limit:10}});
});
jsp(后台处理)
<%
String start = request.getParameter("start");
String limit = request.getParameter("limit");
if(start.equals("")){
start = "1";
}
try {
int index = Integer.parseInt(start);
int pageSize = Integer.parseInt(limit);
String json = "{totalProperty:100,root:[";
for (int i = index; i < pageSize + index; i++) {
json += "{id:" + i + ",name:'name" + i + "',descn:'descn" + i + "',other:'other"+i+"'}";
if (i != pageSize + index - 1) {
json += ",";
}
}
json += "]}";
response.getWriter().write(json);
} catch(Exception ex) {
}
%>