jQuery的同步非阻塞Ajax调用 [英] jQuery synchronous non-blocking ajax calls

问题描述

在我的web应用程序，我有一系列的迅速解雇了Ajax调用。在服务器上，这些需要，因为它们是从客户端发送相同的顺序进行处理。

In my web application, I have a series of ajax calls that are fired rapidly. On the server, these need to be processed in the same order as they are sent from the client.

我一直在使用异步：jQuery的假配置做到这一点。然而，这使GUI变得非常缓慢的，而它的块进行通话结束。随着异步：真正的图形用户界面响应，但要求并不总是处理，以

I have been using the async: false configuration in jQuery to do this. However this causes the GUI to become very sluggish while it blocks for calls to finish. With async: true the GUI is responsive, but the requests are not always processed in order.

是否有其他的非阻塞的方式来排队Ajax请求，那么下一个是previous一个人完成后，只派？

Is there an alternative non-blocking way to queue up ajax requests, so the next one is sent only after the previous one has finished?

注：我没有请求处理的清单。在飞行中产生的请求，所以我需要能够塞住他们成某种产生时，他们一个FIFO队列的，那么消耗的一些过程的队列。

NOTE: I don't have a "list" of requests to process. The requests are generated on the fly, so I need to be able to stuff them into some sort of a FIFO queue when they are generated, then consume the queue with some process.

推荐答案

它可以很容易地用的 jQuery的承诺：

function firstAjax() {
    return $.ajax({...});
}

function secondAjax() {
    return $.ajax({...});
}

firstAjax().pipe(secondAjax).pipe(...).done(function() {
    alert('all requests have successfully finished');
});

或

$.when(firstAjax()).pipe(secondAjax).pipe(...).done(function() {
    alert('all requests have successfully finished');
});

http://jsfiddle.net/zerkms/WQcVD/1/

这篇关于jQuery的同步非阻塞Ajax调用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！