ExtJs4.1 Proxy Api的使用

    Ext.define('User', {    extend: 'Ext.data.Model',    fields: [        {name: 'id',  type: 'string'},        {name: 'roleName',   type: 'string'},        {name: 'createDate'},        {name: 'state'}    ],    proxy: {        type: 'ajax',        api: {    create  : 'proxyApiController.do?method=create',    read    : 'proxyApiController.do?method=create',    update  : 'proxyApiController.do?method=update',    destroy : 'proxyApiController.do?method=create'},        writer: {        type: "json",        encode: true,        allowSingle: false,        root: "data"        }    }});