blocks|key|299375|text|它们都是jQuery.ajax的包装器/速记方法，因此不会有性能差异。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|299376|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.ajax/^0|4|B|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

They are both wrappers/shorthand methods for <a href="http://api.jquery.com/jQuery.ajax/" rel="nofollow">jQuery.ajax</a>, so there wont be a performance difference.

blocks|key|298640|text|$.getJSON()；是$.ajax();的快捷方式，它也调用$.post();，因此您看不到太大的区别(但直接使用$.getJSON()会更容易)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|298641|请参阅jquery+doc|298642|编辑NimChimpsky比我快...|298643|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.getJSON/^0|0|B|D|9|W|9|1N|B|0|3|A|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@]|D|@$9|11|A|12|1|13]]|E|$]]|$1|H|3|I|5|6|7|14|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

<code>$.getJSON()</code>; is a shortcut to <code>$.ajax();</code> which also calls <code>$.post();</code> so you won't see much difference (but it will be easier to use <code>$.getJSON()</code> directly).

See the <a href="http://api.jquery.com/jQuery.getJSON/" rel="nofollow">jquery doc</a>

[EDIT] NimChimpsky was faster than me...

blocks|key|4033745|text|我认为两者都使用ajax不会有什么不同，.post使用http+post请求加载数据，而getJSON使用http+get请求，因此您不必显式地告诉getJSON+dataType|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4033746|entityMap^0|8|4|K|5|R|9|18|7|1H|8|22|7|2A|8|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|G|$]]

i dont think it will make a difference both make use of <code>ajax</code>, <code>.post</code> loads the data using <code>http post</code> request where as <code>getJSON</code> uses a <code>http get</code> request more over you dont have to explicitly tell <code>getJSON</code> the <code>dataType</code>

blocks|key|3748723|text|如果它是从服务器检索数据而不持久(更新)任何内容的HTTP操作，则使用GET是正确的语义。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3748724|post和get都使用HTTP，因此性能差异可以忽略不计，特别是考虑到WAN通信的变量。|3748725|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

If it is a HTTP action that is retrieving data from the server without persisting (updating) anything, GET is the correct semantic to use. 

Both post and get use HTTP so performance difference will be negligible, especially considering the variables of WAN communication.

blocks|key|2135196|text|正如其他人所说，这两个函数之间没有真正的区别，因为它们都是由XMLHttpRequest发送的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2135197|如果服务器使用相同的代码处理这两个请求，则处理时间应该相同。|2135198|因此，问题可以转化为HTTP+GET请求和POST请求哪个更快？|2135199|因为与GET请求相比，POST请求需要两个额外的HTTP头(Content-Type和Content-Length)，所以后者应该更快(因为传输的数据更少)。|2135200|但这只是速度，我认为在这里遵循REST指导原则会更好。如果你正在修改什么，使用POST；如果你想获取一些东西，使用GET。|2135201|还有另一件重要的事情，GET响应可以被缓存，但我使用的是problems+caching+POST响应。|2135202|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/XMLHttpRequest|1|http://en.wikipedia.org/wiki/Representational_State_Transfer|2|https://stackoverflow.com/questions/3874274/how-to-cache-an-http-post-response^0|U|E|U|E|0|0|0|0|U|C|17|E|0|F|4|1|0|S|L|2|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@$9|14|A|15|1|16]]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|18|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|19|8|@$9|1A|A|1B|B|C]|$9|1C|A|1D|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|1E|8|@]|D|@$9|1F|A|1G|1|1H]]|E|$]]|$1|N|3|O|5|6|7|1I|8|@]|D|@$9|1J|A|1K|1|1L]]|E|$]]|$1|P|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|Q|$R|$5|S|T|U|E|$V|W]]|X|$5|S|T|U|E|$V|Y]]|Z|$5|S|T|U|E|$V|10]]]]

As others said there is no real difference between the two functions, because both of them will be sent by <a href="http://en.wikipedia.org/wiki/XMLHttpRequest" rel="nofollow noreferrer"><code>XMLHttpRequest</code></a>.

If the server is handling both of the requests with the same code then the handling times should be the same.

Therefore the question can be translated to which one is faster the HTTP GET request or the POST request?

Because the POST request needs two additional HTTP headers (<code>Content-Type</code> and <code>Content-Length</code>) comparing to the GET request the latter should be faster (because less data will be transferred).

But that's just the speed, I think it's better to follow the <a href="http://en.wikipedia.org/wiki/Representational_State_Transfer" rel="nofollow noreferrer">REST</a> guidelines here. Use POST if you're modifying something, use GET if you want to fetch something.

And one another important thing, GET responses could be cached, but I was having <a href="https://stackoverflow.com/questions/3874274/how-to-cache-an-http-post-response">problems caching POST</a> ones.

blocks|key|4033842|text|没有区别，因为两者都在使用XMLHttpRequest。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4033843|首先，$.getJSON()是一个速记Ajax函数，它相当于：|style|CODE|4033844|$.ajax({
++dataType:+"json",
++url:+url,
++data:+data,
++success:+success
});|code-block|syntax|javascript|4033845|https://api.jquery.com/jQuery.getJSON/|4033846|其次，$.post()也是一个速记Ajax函数，它相当于：|4033847|$.ajax({
++type:+"POST",
++url:+url,
++data:+data,
++success:+success,
++dataType:+dataType
});|4033848|https://api.jquery.com/jquery.post/|4033849|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest|1|2^0|D|E|0|0|3|B|0|0|0|12|1|0|0|0|0|Z|2|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|E|5|6|7|18|8|@$A|19|B|1A|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|1B|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1C|8|@]|9|@$A|1D|B|1E|1|1F]]|C|$]]|$1|O|3|P|5|6|7|1G|8|@]|9|@]|C|$]]|$1|Q|3|R|5|J|7|1H|8|@]|9|@]|C|$K|L]]|$1|S|3|T|5|6|7|1I|8|@]|9|@$A|1J|B|1K|1|1L]]|C|$]]|$1|U|3|-4|5|6|7|1M|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]|12|$5|X|Y|Z|C|$10|N]]|13|$5|X|Y|Z|C|$10|T]]]]

There are no difference, Because both are using <a href="https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest" rel="nofollow noreferrer">XMLHttpRequest</a>.

First, <code>$.getJSON()</code> is a shorthand Ajax function, which is equivalent to:

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

<a href="https://api.jquery.com/jQuery.getJSON/" rel="nofollow noreferrer">https://api.jquery.com/jQuery.getJSON/</a>

Second, $.post() is also a shorthand Ajax function, which is equivalent to:

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

<a href="https://api.jquery.com/jquery.post/" rel="nofollow noreferrer">https://api.jquery.com/jquery.post/</a>

Using

<pre><code>$.getJSON();
</code></pre>

or

<pre><code> $.post();
</code></pre>

I'm trying to send some parameters through a page that is just for AJAX request 
and get some results in JSON or html snippet. 

What I want to know is that which one is faster?

Assume the HTML file would be simply plain boolean text (true or false)

jQuery .getJSON vs .post which one is faster?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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使用$.getJSON();或 $.post();我试图通过一个页面发送一些参数，这只是为了AJAX请求，并获得一些JSON或html代码片段的结果。我想知道的是哪一个更快？假设HTML文件仅仅是纯布尔文本(true或false)

问jQuery .getJSON与.post哪个更快？
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问jQuery .getJSON与.post哪个更快？EN