Ext.data.Store动态修改url

store.proxy = new Ext.data.HttpProxy({url:path});

示例：

    var ad_store = new Ext.data.JsonStore({
            fields: ["id", "title1", "title2", "content", "pid", "position", "publish_time", "end_time", "pic_url", "link_url","ad_tag", "total_read_num"],
            url: 'php/action/ad_oper.php?op=query_all&start=0&limit=15&type=' + type,
            totalProperty: 'total',
            root: 'data'
        });

修改url：

tbar: [{
                text: '增加',
                handler: addAd
            }, {
                text: '筛选游戏:',
                border: false
            }, {
                id: 'select_game',
                xtype: "combo",
                hideLabel: true,
                mode: "local", //由于数据已定义所以必须写成local
                triggerAction: 'all', //想要加载所有项就要这么写，网上这么说的，我没试过不写
                editable: true,
                emptyText: "请选择",
                store: game_info_store,
                valueField: 'gid',
                displayField: 'nameCN', //不写这项的话，你会发现下拉项是空的没内容哦
                listeners: {
                    'select': function(src, val) {
                        gid = val.data.gid;
                        url = 'php/action/ad_oper.php?op=query_all&start=0&limit=15&gid='+gid+'&type=' + type;
                        ad_store.proxy = new Ext.data.HttpProxy({url:url});
                        ad_store.reload();
                    }
                }
            }],

 程序猿必读