js cross-domain request service instance analysis

This article mainly shares with you the analysis of js cross-domain request service examples, hoping to help everyone.

  function getAreaPosionsSucess(data){           alert("请求成功");        }       
function requestServerData(){
var url="http://127.0.0.1:8080/railWay/client/getWorkFlowStepAreas.do";
        $.ajax(url, {          data: {            'id': workFlowId        },         
         dataType: 'jsonp',          crossDomain: true,            
           '_': new Date().getTime() ,      
            jsonp: "callback",
            //传递给请求处理程序或页面的，用以获得jsonp回调函数名的参数名(一般默认为:callback)          
               jsonpCallback:"getAreaPosionsSucess",//自定义的jsonp回调函数名称，默认为jQuery自动生成的随机函数名，也可以写"?"，jQuery会自动为你处理数据 
      });
}

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