递归ajax（）请求 [英] Recursive ajax() requests

问题描述

我使用jQuery的 ajax（）来获取信息。我在请求成功时调用该方法。以下是代码：

I use jQuery's ajax()to get information. I call the method when the request is successful. Here is the code:

function recursively_ajax(){
    console.warn("begin");
    $.ajax({
        type:"GET",
        url: "./JvmInfoClass",
        success: function(data){
            console.warn("get jvm info success");
            recursively_ajax();
        }
    });
}

recursively_ajax();

我让线程在后端休眠3秒。但控制台不会在3秒后连续打印消息。这是为什么？

I make the thread sleep 3 seconds in the back-end. But the console print the message continuously not after 3 seconds. Why is this?

推荐答案

您可以尝试使用ajax调用async：false

You can try this with ajax call async:false

var counter=0;
 function recursively_ajax()
{
var pass_data=5;
var chartMenu=['VTR','NC','RC','TOCU','TOCO','TR','COA','MP'];
$.ajax({
        type:"POST",
        async:false, // set async false to wait for previous response
        url: "url to server",
        dataType:"json",
        data:{dataMenu:pass_data},
        success: function(data)
        {
            counter++;
            if(counter < chartMenu.length){
                recursively_ajax();
            }
        }
    });
 }      
 recursively_ajax();        

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