关于javascript：如何设置$ .ajax请求的超时并重做它，如果它需要太长时间？

How to set timeout on $.ajax request and redo it if it takes too long?

有人可以告诉我一个关于为我的$ .ajax请求设置超时的实际示例，并在第一个请求超时的情况下重做整个请求，我已经阅读了文档并且没有得到它。我将不胜感激任何帮助。

这是我的$ .ajax请求。

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$.ajax({
url: '<?php bloginfo('template_directory'); ?>/ajax/product.php',
type: 'get',
data: {product_id : product_id},
beforeSend: function(){
$('#details').html('');
},
success: function(data){
$('.iosSlider').fadeOut('fast');
thisprod.addClass('current');
$('#details').css({opacity: 0}).html(data).stop().animate({left: 0, opacity: 1}, 800);
}
});
return false;

相关讨论

ajax函数采用超时参数，您可以在出现错误时检查状态。

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你可能想要做一些更聪明的事情以避免永久性的电话......

从文档：

Set a timeout (in milliseconds) for the request. This will override
any global timeout set with $.ajaxSetup(). The timeout period starts
at the point the $.ajax call is made; if several other requests are in
progress and the browser has no connections available, it is possible
for a request to time out before it can be sent. In jQuery 1.4.x and
below, the XMLHttpRequest object will be in an invalid state if the
request times out; accessing any object members may throw an
exception. In Firefox 3.0+ only, script and JSONP requests cannot be
cancelled by a timeout; the script will run even if it arrives after
the timeout period.

相关讨论

对于这种情况，我会使用jquery延迟失败回调。
http://api.jquery.com/deferred.fail/

一个。您可以维护所有请求的队列。

1	$.xhrQueue = [];

湾将您提出的每个请求排入队列

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$.ajaxSetup({
beforeSend: function (e, xhr) {
$.xhrQueue .push(xhr);
}
});

C。完成请求与超时的轮询

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setInterval(function(){
$.each($.xhrQueue, function (xhr) {
//check whether status is complete,
//with some try-catch you can know which were the timed-out/not-sent ones

});
}, 1000);

_{注意：如果不是beforeSend，您可以通过其他一些函数来尝试进行ajax调用}

试试这个

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