为 ajax (jQuery) 设置超时 [英] Set timeout for ajax (jQuery)

问题描述

$.ajax({
    url: "test.html",
    error: function(){
        //do something
    },
    success: function(){
        //do something
    }
});

有时 success 功能运行良好，有时则不然.

Sometimes success function works good, sometimes not.

如何设置这个ajax请求的超时时间?例如，3 秒，如果超时，则显示错误.

How do I set timeout for this ajax request? In example, 3 seconds, if time is out, then show an error.

问题是，ajax 请求会冻结块直到完成.如果服务器宕机一段时间，它永远不会结束.

The problem is, ajax request freezes the block until finishes. If server is down for a little time, it will never end.

推荐答案

请阅读 $.ajax 文档，这是一个涵盖的主题.

Please read the $.ajax documentation, this is a covered topic.

$.ajax({
    url: "test.html",
    error: function(){
        // will fire when timeout is reached
    },
    success: function(){
        //do something
    },
    timeout: 3000 // sets timeout to 3 seconds
});

您可以通过访问 error: function(jqXHR, textStatus, errorThrown) 选项的 textStatus 参数来查看抛出的错误类型.选项是超时"、错误"、中止"和解析器错误".

You can get see what type of error was thrown by accessing the textStatus parameter of the error: function(jqXHR, textStatus, errorThrown) option. The options are "timeout", "error", "abort", and "parsererror".

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