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];