EXT grid那不到后台数据？？

[liyunxin]

js代码：

Ext.onReady( function() {
	var recordType = new Ext.data.Record.create( [ {
		name :"number",
		type :"string"
	},

	{
		name :"name",
		type :"string"
	},

	{
		name :"author",
		type :"string"
	},

	{
		name :"press",
		type :"string"
	},

	{
		name :"price",
		type :"string"
	},

	{
		name :"language",
		type :"string"
	},

	{
		name :"lend",
		type :"string"
	}

	]);

	var reader = new Ext.data.JsonReader(

	{
		totalProperty :"results",
		root :"rows",
		id :"number"
	}, recordType);

	var proxy = new Ext.data.HttpProxy( {
		url :'gridLoad.jsp'
	}); 

		var ds = new Ext.data.Store( {
			proxy :proxy,
			reader :reader
		});

		ds.load(); // 加载数据，必须的。

		var sm = new Ext.grid.CheckboxSelectionModel();

		var cm = new Ext.grid.ColumnModel( {

			defaultSortable :true,

			columns : [ sm, {
				header :'<center>number</center>',
				dataIndex :'number',
				width :100
			}, {
				header :'<center>name</center>',
				dataIndex :'name',
				width :200
			}, {
				header :'<center>author</center>',
				dataIndex :'author',
				width :80
			}, {
				header :'<center>press</center>',
				dataIndex :'press',
				width :200
			}, {
				header :'<center>price</center>',
				dataIndex :'price',
				width :50
			}, {
				header :'<center>language</center>',
				dataIndex :'language',
				width :70
			}, {
				header :'<center>lend</center>',
				dataIndex :'lend',
				width :60
			} ]
		});

		var libraryInfoGrid = new Ext.grid.GridPanel( {
			title :'tushuxinxi',
			store :ds,
			cm :cm,
			sm :sm,
			width :800,
			height :100,

			region :'center',
			
		});
		libraryInfoGrid.render('grid-example');

直接访问 gridLoad.jsp 能拿到结果：
{"arr":[{"author":"李四","language":"中文","lend":"是","name":"JAVA编程思想","number":"0001","press":"机械工业出版社","price":"100"},{"author":"qqq","language":"qqq","lend":"qqq","name":"qqq","number":"001","press":"qqq","price":"qqq"}],"num":2}

谁帮忙下？？

[sohighthesky]

JsonReader中

root :"rows",
改为root:"arr"

[sohighthesky]

totalProperty :"results",
改为totalProperty :"num",
这些属性的名字，是根据你服务器的的json来的

[liyunxin]

谢了，刚开始学EXT.能不能推荐几个用ext做的开源项目啊，我学习下？？