Ext中跨域更新数据怎么办？？？！！！
我在main.jsp中采用ext的viewport布局。代码：
var viewport = Ext.create('Ext.container.Viewport', {
layout: 'border',
defaults: {
collapsible: true,
bodyStyle: 'padding: 10px'
},
items: [logoPanel, treePanel, mainPanel, copyrightPanel]
});var treePanel= Ext.create('Ext.tree.Panel', {
title: ‘功能模块’,
displayField: 'name',
region: 'west',
id: 'moduleList',
width: '16%',
autoScroll: true,
store: treeStore,
rootVisible: false,
listeners: {
itemclick: function(view, record, item, index, e, eOpts) {
var data = record.raw.extData;
var global = data.global;
var entry = data.entry;
var title = data.name;
if (entry != null && /^http/.test(entry)) {
var html = "<iframe id='ifm' src='" + entry + "'></iframe>";
updateMainPanel(html, title);
}
}
});
var mainPanel= Ext.create('Ext.panel.Panel', {
title: 'center',
region: 'center',
width: '84%',
bodyCls: 'bg',
autoScroll: true,
html: indexContent() //进入系统主页面
});