ExtJS12：Ajax发送请求：同步和异步

1.Ext异步请求发送

Ext.Ajax.request({

        //需要发送的url请求

url :  __ctxPath + '/outb/isProjComsEnableObProject.do?projId='+id,

        //发送方法：post

method : 'post',

        //请求成功时的回调函数

success : function(response) {

                ////解析数据，response.responseText为从后台返回的json串

var result = Ext.util.JSON.decode(response.responseText);

                //例如后台返回的json串为：jsonString="{success:false,tesName:'someData'}";

                //那么可以取值：result.success取出的值为false；result.tesName取值为someData

                

},

        //请求发送失败的回调函数

failure : function() {

}

});

2.Ext同步请求发送

//同步请求

var responsea = Ext.lib.Ajax.getConnectionObject().conn;

responsea.open("POST",  __ctxPath + '/outb/listCountsObSaletask.do?comId=' + comId, false);

responsea.send(null);

//返回的json串为：{"LAY_UP":"1","PLAN":"2","FLOWING":"1","FAIL_CASE":"1","SUCC_CASE":"1","NO_EXEC":"2","CANCELED":"1"}

var result = Ext.util.JSON.decode(responsea.responseText);//解析数据

//拼装数据

var data = [result.LAY_UP,result.PLAN,result.FLOWING,result.FAIL_CASE,result.SUCC_CASE,result.NO_EXEC,result.CANCELED];