blocks|key|403045|text|getJSON()只是以下内容的简写：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|403046|$.ajax({
++++dataType:+"json",
++++url:+url,
++++data:+data,
++++success:+success
});|code-block|syntax|javascript|403047|因此，您可以使用$.ajax()并根据需要指定timeout选项。另请参阅：http://api.jquery.com/jQuery.getJSON/|403048|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.getJSON/^0|0|9|0|0|8|8|N|7|12|11|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@$9|13|A|14|1|15]]|E|$]]|$1|M|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

<code>getJSON()</code> is just a shorthand for the following:

<pre><code>$.ajax({
 dataType: "json",
 url: url,
 data: data,
 success: success
});
</code></pre>

So you could use <code>$.ajax()</code> and specify the <code>timeout</code> option as desired. See also: <a href="http://api.jquery.com/jQuery.getJSON/">http://api.jquery.com/jQuery.getJSON/</a>

blocks|key|184954|text|setTimeout函数在全局范围内经过指定的毫秒数后执行一组代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|184955|getJSON函数(根据此处的jQuery文档http://api.jquery.com/jQuery.getJSON/)是以下的简写形式：|offset|length|184956|$.ajax({
++dataType:+"json",
++url:+url,
++data:+data,
++success:+success
});|code-block|syntax|javascript|184957|因此，您可能希望像这样发出呼叫：|184958|$.ajax({
++dataType:+"json",
++url:+url,
++data:+data,
++success:+success,
++timeout:+15000
});

$('.loadingDiv')
++++.hide()
++++.ajaxStart(function()+{
++++++++$(this).fadeIn();
++++})
++++.ajaxStop(function()+{
++++++++$(this).fadeOut();
++++});|184959|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.getJSON/^0|0|N|11|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

the setTimeout function executes a set of code after a specified number of milisecons in the global scope.

The getJSON function (per the jQuery documentation here <a href="http://api.jquery.com/jQuery.getJSON/" rel="nofollow">http://api.jquery.com/jQuery.getJSON/</a>) is shorthand for:

<pre><code>$.ajax({
 dataType: "json",
 url: url,
 data: data,
 success: success
});
</code></pre>

so you would want to make your call like so:

<pre><code>$.ajax({
 dataType: "json",
 url: url,
 data: data,
 success: success,
 timeout: 15000
});

$('.loadingDiv')
 .hide()
 .ajaxStart(function() {
 $(this).fadeIn();
 })
 .ajaxStop(function() {
 $(this).fadeOut();
 });
</code></pre>

blocks|key|403115|text|正如致命吉他所提到的，getJSON()函数只是$.ajax()的一种简写。如果您希望检测是否发生了超时，而不是实际的错误，请使用以下代码。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|403116|var+request+=+$.ajax({
++++dataType:+"json",
++++url:+url,
++++data:+data,
++++success:+function(+)+{+},
++++timeout:+2000
}).fail(+function(+xhr,+status+)+{
++++if(+status+==+"timeout"+)+{
++++++++//+do+stuff+in+case+of+timeout
++++}
});|code-block|syntax|javascript|403117|entityMap^0|B|9|O|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

As lethal-guitar mentioned <code>getJSON()</code> function is just an shorthand for <code>$.ajax()</code>. If you want to detect if a timeout has occurred rather than an actual error use the code below.

<pre><code>var request = $.ajax({
 dataType: "json",
 url: url,
 data: data,
 success: function( ) { },
 timeout: 2000
}).fail( function( xhr, status ) {
 if( status == "timeout" ) {
 // do stuff in case of timeout
 }
});
</code></pre>

blocks|key|403140|text|也总会有核路线：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|403141|//Set+AJAX+timeout+to+10+seconds
$.ajaxSetup({
++timeout:+10*1000
});|code-block|syntax|javascript|403142|这将设置您的程序发出的所有AJAX请求(即使是通过$.getJSON)的超时时间为10秒(或您拥有的任何内容)。|403143|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

There's always the nuclear route as well:

<pre><code>//Set AJAX timeout to 10 seconds
$.ajaxSetup({
 timeout: 10*1000
});
</code></pre>

This will set all the AJAX requests your program makes (even via $.getJSON) to have a time out of 10 seconds (or what have you).

blocks|key|403170|text|我不认为这些答案中的任何一个是理想的。我知道这已经晚了几年，但您要做的是在接收JSONP响应时使用.ajax();方法的成功/错误回调选项。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|403171|我将如何构建它的示例：|403172|++++//+Call
++++$.ajax({

++++++//+URL+you+want+to+get
++++++url:+'http://example.com/json?callback=?',

++++++//+Set+a+realistic+time+in+milliseconds
++++++timeout:+3000,

++++++//+Put+in+success+callback+function+here,+this+example
++++++//+shows+you+the+data+you+got+back+from+the+call
++++++success:+function(data)+{
++++++++console.log(data);
++++++},

++++++//+Put+in+an+error+handling+function,+just+an+alert+in+this+case
++++++error:+function(badData)+{
++++++++alert('The+call+was+unsuccessful');
++++++},

++++++type:+'POST'
++++});|code-block|syntax|javascript|403173|entityMap^0|1D|8|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|S|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

I don't think any of these answers are ideal. I know this is years late, but what you want to do is use the success/error callback options of the <code>.ajax();</code> method when receiving a JSONP response.

Example of how I would structure this:

<pre><code> // Call
 $.ajax({

 // URL you want to get
 url: 'http://example.com/json?callback=?',

 // Set a realistic time in milliseconds
 timeout: 3000,

 // Put in success callback function here, this example
 // shows you the data you got back from the call
 success: function(data) {
 console.log(data);
 },

 // Put in an error handling function, just an alert in this case
 error: function(badData) {
 alert('The call was unsuccessful');
 },

 type: 'POST'
 });
</code></pre>

I am using jQuery <code>getJSON()</code> function. This function getting data with no problem. But sometimes waiting, waiting waiting... And my loading bar showing loading loading loadin at center of page.
 So jQuery <code>ajax()</code> function have an timeout variable. But i want to use <code>getJSON</code> function. And i think that i can use <code>ajaxStart()</code> and <code>ajaxStop()</code> functions. But how?

<pre><code>$('.loadingDiv')
 .hide()
 .ajaxStart(function() {
 $(this).fadeIn();
 setTimeout("throw '';",15000) //i used this but didn't work
 setTimeout("return;",15000) //i used this but didn't work
 setTimeout("abort();",15000) //i used this but didn't work.(Abort all ajax events)
 })
 .ajaxStop(function() {
 $(this).fadeOut();
 });
</code></pre>

getJSON timeout handling

jQuery

我正在使用jQuery getJSON()函数。这个函数可以毫无问题地获取数据。但有时等待，等待...我的加载栏在页面中央显示加载加载。因此jQuery ajax()函数有一个超时变量。但是我想使用getJSON函数。我认为我可以使用ajaxStart()和ajaxStop()函数。但是怎么做呢？$('.loading...

问getJSON超时处理
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