store获取web服务器内容的方式

方式一：

 

 

var store = new Ext.data.Store({
        proxy: new Ext.data.HttpProxy({
            url: url.methodName
        }),
        reader: new Ext.data.JsonReader({
            root: 'data',
            totalProperty: 'totalCount'
        }, [{
            name: 'field1',
            mapping: 'field1'
        }, {
            name: 'field2',
            mapping: 'field2'
        }]),
        autoLoad: true
    });

 

 

方式二：dwr

var store = new Ext.data.JsonStore({
        fields: ['valueField', 'displayField', 'field1', 'field2'],
        root: 'data'
    });
    
SelectOptionsDWR.methodName( function(ret) {
        store.loadData(Ext.decode(ret));
     });