ExtJs.ajax.request的异步请求

	Ext.Ajax.request({ 
		    url:'./ck_xxcx?city_id='+id+'', 
			//params:{city_id:'id'}, 
			method:'get', 
			scope:this, 
			timeout:10000, 
			success: function (response, options) {  
			//获取结果将相关信息绘制在地图(封装服务端传送的数据 
					 
			 
                    Ext.MessageBox.alert('成功', '从服务端获取结果: ' + response.responseText);  
             },  
            failure: function (response, options) {  
                    Ext.MessageBox.alert('失败', '请求超时或网络故障,错误编号：' + response.status);  
              }  
 
		});