Question

为什么用HttpProxy，JsonReader取不到后台的数据：

Ext.onReady(function () {
var workLoad_store = new Ext.data.Store({
proxy: new Ext.data.HttpProxy({
method: 'GET',
url: 'http://localhost:3182/WebForm2.aspx'
}),
reader: new Ext.data.JsonReader({
root: 'chartdata',
fields: ['AdSiteName', 'ClickCount']
}),
autoLoad: true
});
new Ext.Panel({
iconCls: 'chart',
title: ' Advertisement Click Statistics',
frame: true,
renderTo: 'workLoadContainer',
width: 1000,
height: 300,
layout: 'fit',

items: {
xtype: 'columnchart',
store: workLoad_store,
// url: '/chart/charts.swf',
xField: 'AdSiteName',
yAxis: new Ext.chart.NumericAxis({
displayName: 'Visits',
labelRenderer: Ext.util.Format.numberRenderer('0,0')
}),
series: [{
type: 'column',
displayName: 'ClickCount',
yField: 'ClickCount',
style: {
mode: 'stretch',
color: 0x99BBE8
}
}]
}
});
})

以下是WebForm2的后台代码：
public partial class WebForm2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.Response.Write("{chartdata:[{AdSiteName:'Google',ClickCount:10000},{AdSiteName:'Mircrosoft',ClickCount:5000}]}");

}
}

各位大哥，救救小妹吧

Answer 1

改成POST试试？