blocks|key|1322803|text|粗略的英文意思是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1322804|你有一个网页。一些事件(可以是按钮按下或其他表单事件，或者只是由计时器触发的事件)发生并触发JavaScript代码，要求服务器提供最新信息(比如谷歌股票的最新值)。|1322805|服务器上有一段代码，它收集你传递的信息，然后发回一些信息。这与服务器通常具有的页面服务工作不同。|1322806|当服务器应答时，将使用来自服务器的信息调用回调函数(在对服务器的JavaScript调用中指定)。您的JavaScript代码使用这些信息来更新一些东西--比如谷歌股票图表。|1322807|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

The rough idea in English:

You have a web page. Some event (can be a button press or other form event, or just something triggered by a timer) occurs and triggers JavaScript code that asks the server for fresh information (like the latest value of GOOG stock).

There's a piece of code on the server that collects the info you passed and sends some info back. That's different from the page-serving job the server usually has.

When the server answers, a callback function (that you specified in the JavaScript call to the server) is called with the info from the server. Your JavaScript code uses the info to update something--like a GOOG stock chart.

blocks|key|1322915|text|最常见的是，它指的是在浏览器中通过JavaScript*使用XMLHttpRequest对象。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1322916|根据您询问的人，它可以用来描述HTTP上的几乎任何类型的客户机/服务器通信，而不仅仅是在浏览器中键入URL。|1322917|*jQuery提供了一些很好的包装器代码来处理跨浏览器的差异等。|1322918|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

Most commonly, it refers to the use of the XMLHttpRequest object via JavaScript* in a browser.

Depending on who you ask, it could be used to describe almost any type of client/server communication over HTTP other than just typing a URL into a browser.

*jQuery provides some nice wrapper code to handle cross-browser differences, etc.

blocks|key|1537825|text|http://www.w3schools.com/Ajax/Default.Asp|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1537826|这是一个很好的起点。这应该会回答你所有的问题。|1537827|entityMap|0|LINK|mutability|MUTABLE|url^0|0|15|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@$A|N|B|O|1|P]]|C|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|4]]]]

<a href="http://www.w3schools.com/Ajax/Default.Asp" rel="nofollow noreferrer">http://www.w3schools.com/Ajax/Default.Asp</a>

that is a good place to start. This should answer all of your questions.

blocks|key|1537877|text|来自创造了这个术语的人--+http://adaptivepath.com/ideas/essays/archives/000385.php|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1537878|entityMap|0|LINK|mutability|MUTABLE|url|http://adaptivepath.com/ideas/essays/archives/000385.php^0|E|1K|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]]]]

From the man that coined the term - <a href="http://adaptivepath.com/ideas/essays/archives/000385.php" rel="nofollow noreferrer">http://adaptivepath.com/ideas/essays/archives/000385.php</a>

blocks|key|1322722|text|"Ajax“是2005年引入的一个成功的营销术语，用来取代没有被很好地接受的旧术语"DHTML”。随着新词"HTML5“的出现，"Ajax”今天也成为了历史的一部分。尽管如此，"HTML5“仍然和最初的"DHTML”差不多。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1322723|Ajax也被称为“应用程序开发的新方法”，在这种方法中，最初在服务器上创建网页，但后来在其生命周期中，随着数据或部分内容在后台传送到服务器，更新将在客户机上完成。|1322724|希望这能澄清。|1322725|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

"Ajax" is the successfull marketing term introduced back in 2005 to replace the the older term "DHTML" that did not stick well. "Ajax" today is part of the history too as the new word - "HTML5" emerge. Still "HTML5" is pretty much what original "DHTML" used to be.

Ajax is also reffered to as "the new approach to the application development" where a web page is created on the server initially but later on, during its lifetime, the updates are being done on the client as the data or partial content gets communicated to the server in a background.

Hope this clarifies.

blocks|key|1538299|text|只是为了增加..。可能与问题无关..虽然，AJAX是由Gmail在他们的浏览器电子邮件中出名的，但..the+AJAX的功劳归功于微软。他们创造了AJAX的东西..|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1538300|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Just to add.. may be not relevant for the question ..
although, AJAX was made famous by Gmail in their browser emails ..the credit of AJAX goes to Microsoft .. they created the AJAX thing..

blocks|key|1537918|text|我认为最快、最简单的入门方法是使用jQuery：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1537919|http://jquery.com/|offset|length|1537920|http://docs.jquery.com/Ajax/jQuery.ajax#examples|1537921|entityMap|0|LINK|mutability|MUTABLE|url|1^0|0|0|I|0|0|0|1C|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|H|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]|O|$5|K|L|M|A|$N|G]]]]

I believe the fastest and easiest way to get started is with jQuery:

<a href="http://jquery.com/" rel="nofollow noreferrer">http://jquery.com/</a>

<a href="http://docs.jquery.com/Ajax/jQuery.ajax#examples" rel="nofollow noreferrer">http://docs.jquery.com/Ajax/jQuery.ajax#examples</a>

blocks|key|1322665|text|AJAX代表异步JavaScript和XML，尽管它不再总是处理XML数据。本质上，它归结为通过在客户机上运行的JavaScript使用XMLHttpRequest对象来发出web请求并检索一些信息，您可以使用这些信息来更新页面的状态，而无需刷新页面。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1322666|从基础教程开始，向您展示如何使用基本的Ajax发出异步请求，比如http://www.w3schools.com/Ajax/Default.asp，然后再讨论在生产级应用程序中使用Ajax。|offset|length|1322667|在应用程序中使用它时，最好研究一种常见的JavaScript框架，该框架可以抽象出各种浏览器之间的差异，并使请求返回后操作页面变得容易。我个人推荐http://www.jquery.com/|1322668|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3schools.com/Ajax/Default.asp|1|http://www.jquery.com/^0|0|W|15|0|0|21|M|1|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|H|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]|P|$5|K|L|M|A|$N|Q]]]]

AJAX stands for asynchronous JavaScript and XML, though it doesn't always deal with XML data anymore. Essentially it boils down to using the XMLHttpRequest object through JavaScript running on the client to make a web request and retrieve some information that you use to update the state of your page without requiring a page refresh.

Start with a basic tutorial that shows you how to use bare bones Ajax to make asynchronous requests such as <a href="http://www.w3schools.com/Ajax/Default.asp" rel="nofollow noreferrer">http://www.w3schools.com/Ajax/Default.asp</a> before moving on to using it in a production level application.

When using it in an application you're far better off investigating one of the common JavaScript frameworks that abstract away the differences between the various browsers and make it easy to manipulate the page after the request returns. I personally recommend <a href="http://www.jquery.com/" rel="nofollow noreferrer">http://www.jquery.com/</a>

blocks|key|1538163|text|我阅读Head+First+AJAX作为我的第一个AJAX参考，我发现它给出了一个简单而实用的AJAX概述。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1538164|entityMap|0|LINK|mutability|MUTABLE|url|http://oreilly.com/catalog/9780596515782/^0|3|F|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]]]]

I read <a href="http://oreilly.com/catalog/9780596515782/" rel="nofollow noreferrer">Head First AJAX</a> as my first AJAX reference and I found it to give a simple and practical overview of AJAX.

blocks|key|1322954|text|创造性地使用以前已知的技术。浏览器端脚本和对服务器上数据的程序化访问以前都是已知的。在AJAX中，它已经被放在一起，用于创新使用，使以前已知的新的应用成为可能。剩下的都是类似类型的预付款...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1322955|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Creative use of previously known technology. Both the browser side scripting and programmatic access to data on the server have been known before. In AJAX it has been put together for innovative use anabling new applications of thechology known before. The REST comes to mind as similar type of advance...

blocks|key|1323003|text|AJAX非常简单:某处有人认为，如果能够向服务器发送内容并从服务器接收内容，而无需重新加载页面，那将会很酷。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1323004|AJAX不是一场革命，它只是一个简单的名字:一个网页可以向服务器发送一个请求，而不需要重新加载--这里只是一些异步的东西。|1323005|你可以在你的网页上添加AJAX控件，而不需要任何工作--只需使用Visual+Studio拖拽它们即可。您可能需要为它们添加一些管理器，但这只是一个拖放任务。|1323006|但需要注意的是:流氓浏览器通常不会像IE那样使用AJAX语言。|1323007|:)|1323008|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

AJAX is very simple : someone somewhere tought that it would be cool to be able to send something to the server and receive something from it without reload a page.

AJAX is not a revolution, it's just a name for something simple : a web page can send a request to the server without being reloader - just some asynch stuff here.

You can add AJAX controls on your web pages wihout any works - just drag them in with Visual Studio. You may have to add some manager for them, but it is simply a drag-and-drop task.

But be warned : rogue web browser usually don't speak the same AJAX language as IE...

:)

blocks|key|1538342|text|AJAX是一个非常奇特的术语，它允许浏览器在需要重新加载整个页面的情况下刷新部分内容。正如许多人所说，它不需要XML，甚至不需要Javascript来实现它。事实上，在它的早期，它是用VBScript和Jscript完成的，只是叫做DHTML。Jesse+James+Garrett+may+have+invented+the+AJAX+term，但实际上是微软发明了它背后的概念。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1538343|This+source+says+Microsoft+started+it+in+1999，但我认为这项技术的诞生要追溯到更久以前。这个Wired+article可能更准确地说这项技术是在90年代后期，其中大部分来自于微软的Michael+Wallent于1997年开始编写的MSDN+DHTML+Dude+columns的旧时代。在这个伟大的视频中，迈克尔本人也讲述了很多故事:顺便说一句，http://channel9.msdn.com/posts/Charles/Michael-Wallent-Advent-and-Evolution-of-WPF/+Megan仍然在微软工作，正在开发微软的Silverlight+team+nowadays,，微软的ActiveX替代品。|1538344|回到AJAX的thingy...when+Jesse+James+Garrett早在2005年，他主要谈论的是XMLHTTPRequest在Javascript代码中的使用，以及少许的盐。后来，许多人开始使用一个时髦的词，尽管他们不知道它是什么，并认为这真的是一些全新的时髦的东西，而实际上它只是像你现在听到的许多old.....sort歌曲的混音。|1538345|它不是新的，只是旧东西的更新版本！|1538346|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Ajax_(programming))|1|http://garrettsmith.net/blog/archives/2006/01/microsoft_inven_1.html|2|http://www.wired.com/science/discoveries/news/2005/10/69316|3|http://msdn.microsoft.com/en-us/library/bb263969(VS.85).aspx|4|http://channel9.msdn.com/posts/Charles/Michael-Wallent-Advent-and-Evolution-of-WPF/|5|http://en.wikipedia.org/wiki/Megan_Wallent|6|http://en.wikipedia.org/wiki/ActiveX|7|http://en.wikipedia.org/wiki/XMLHTTPRequest^0|3E|1F|0|0|0|19|1|1W|D|2|3U|N|3|5G|2B|4|8C|Q|5|96|7|6|0|1J|E|7|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@$A|16|B|17|1|18]]|C|$]]|$1|D|3|E|5|6|7|19|8|@]|9|@$A|1A|B|1B|1|1C]|$A|1D|B|1E|1|1F]|$A|1G|B|1H|1|1I]|$A|1J|B|1K|1|1L]|$A|1M|B|1N|1|1O]|$A|1P|B|1Q|1|1R]]|C|$]]|$1|F|3|G|5|6|7|1S|8|@]|9|@$A|1T|B|1U|1|1V]]|C|$]]|$1|H|3|I|5|6|7|1W|8|@]|9|@]|C|$]]|$1|J|3|-4|5|6|7|1X|8|@]|9|@]|C|$]]]|K|$L|$5|M|N|O|C|$P|Q]]|R|$5|M|N|O|C|$P|S]]|T|$5|M|N|O|C|$P|U]]|V|$5|M|N|O|C|$P|W]]|X|$5|M|N|O|C|$P|Y]]|Z|$5|M|N|O|C|$P|10]]|11|$5|M|N|O|C|$P|12]]|13|$5|M|N|O|C|$P|14]]]]

AJAX is really fancy term for giving the browser the ability to refresh parts of its content with the need to reload an entire page. Like many have said, it doesn't require XML, or even Javascript in order to implement it. In fact in its early days it was done with with VBScript and Jscript and just called DHTML. <a href="http://en.wikipedia.org/wiki/Ajax_(programming)" rel="nofollow noreferrer">Jesse James Garrett may have invented the AJAX term</a>, but it was really Microsoft that invented the concept behind it.

<a href="http://garrettsmith.net/blog/archives/2006/01/microsoft_inven_1.html" rel="nofollow noreferrer">This source says Microsoft started it in 1999</a>, but I would date the birth of this technology even further. This <a href="http://www.wired.com/science/discoveries/news/2005/10/69316" rel="nofollow noreferrer">Wired article</a> is probably more accurate on the date of this technology being in the late 90's, much of it coming from the old days of the <a href="http://msdn.microsoft.com/en-us/library/bb263969(VS.85).aspx" rel="nofollow noreferrer">MSDN DHTML Dude columns</a> written by Michael Wallent at Microsoft which started back in 1997. Much of the story is also told in this great video here by Michael himself: <a href="http://channel9.msdn.com/posts/Charles/Michael-Wallent-Advent-and-Evolution-of-WPF/" rel="nofollow noreferrer">http://channel9.msdn.com/posts/Charles/Michael-Wallent-Advent-and-Evolution-of-WPF/</a> Megan still works at Microsoft by the way working on the <a href="http://en.wikipedia.org/wiki/Megan_Wallent" rel="nofollow noreferrer">Silverlight team nowadays,</a> Microsoft's replacement for <a href="http://en.wikipedia.org/wiki/ActiveX" rel="nofollow noreferrer">ActiveX</a>.

Back to the AJAX thingy...when Jesse James Garrett back in 2005 he was mostly talking about the use of <a href="http://en.wikipedia.org/wiki/XMLHTTPRequest" rel="nofollow noreferrer">XMLHTTPRequest</a> within Javascript code, and a dash of salt. That later began a hip word that many people started using even though they had no idea what it was, and thought that is really something brand new and hip, when really it was just a remix of something old.....sort of like many hip-hop songs you hear nowadays.

It's not new, just a newer version of something old!

blocks|key|1538394|text|AJAX+(异步JavaScript和可扩展标记语言)是一个新创造的术语，用于表示两个强大的浏览器功能，这两个功能已经存在多年，但直到最近Gmail、谷歌建议和谷歌地图等应用程序出现在街道上时，许多web开发人员都忽略了这一点。要了解有关Ajax的更多信息，请学习Ajax+tutorial|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1538395|entityMap|0|LINK|mutability|MUTABLE|url|https://www.wisdomjobs.com/e-university/ajax-tutorial-267.html^0|3O|D|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]]]]

AJAX (Asynchronous JavaScript and XML) is a newly coined term for two powerful browser features that have been around for years, but were overlooked by many web developers until recently when applications such as Gmail, Google Suggest, and Google Maps hit the streets.
To know more information about Ajax learn <a href="https://www.wisdomjobs.com/e-university/ajax-tutorial-267.html" rel="nofollow noreferrer">Ajax tutorial</a>

blocks|key|1322550|text|它是JavaScript，但它是有效的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1322551|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I have to start using AJAX in a project and I don't know where to start. Can someone please help?

What is AJAX, really?

我必须开始在项目中使用AJAX，但我不知道从哪里开始。有人能帮帮忙吗？

问AJAX到底是什么？
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