AJAX Tutorials

The History of AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 1474

In the beginning, there was the World Wide Web. Compared with desktop applications, web applications were slow and clunky. People liked web applications anyway because they were conveniently available from anywhere, on any computer that had a browser. Then Microsoft created XMLHttpRequest in Internet Explorer 5, which let browser-side JavaScript communicate with the web server in the background without requiring the browser to display a new web page. That made it possible to develop more fluid and responsive web applications. Mozilla soon implemented XMLHttpRequest in its browsers, as did Apple (in the Safari browser) and Opera.
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To use or not to use AJAX

  • 2007-09-04
  • Comments
  • Emiley J
  • 1474

When you use Ajax techniques to update portions of a web page, the user gains responsiveness and fluidity. However, the user also loses the ability to bookmark and to use the browser's back button. Both of these drawbacks stem from the same fact: the URL does not change because the browser has not loaded a new page.
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How to Make an HTTP Request in AJAX

  • 2010-11-28
  • Comments
  • Ram Baskar
  • 1473

In order to make an HTTP request to the server using JavaScript, you need an instance of a class that provides you this functionality. Such a class was originally introduced in Internet Explorer as an ActiveX object, called XMLHTTP. Then Mozilla, Safari and other browsers followed, implementing an XMLHttpRequest class that supports the methods and properties of Microsoft's original ActiveX object.
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Handling the Server Response in AJAX

  • 2010-11-28
  • Comments
  • Ram Baskar
  • 1473

Remember that when you send the request, you provide the name of a JavaScript function that is designed to handle the response. eg:
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A complete sample program in AJAX

  • 2010-11-28
  • Comments
  • Ram Baskar
  • 1473

Here is a complete AJAX example with a simple HTTP request. Our JavaScript will request an HTML document, test.html, which contains the text "I'm a test." and then we'll alert() the contents of thetest.html file.
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XML vs JSON in AJAX

  • 2009-01-17
  • Comments
  • Emiley J.
  • 1473

If you are working with AJAX, you probably use either one of them or both of them. However there are pros and cons of using each of them. One major drawback of using XML is the speed. XML requires two tags for every data point. These additional data in transmission between the server and the client slows down the data exchange and wastes bandwidth.
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Related Tutorials

How to Make an HTTP Request in AJAX

Handling the Server Response in AJAX

A complete sample program in AJAX

XML vs JSON in AJAX

Creating JSON objects using Java in AJAX

The History of AJAX

To use or not to use AJAX

Archived Comments

1. I have downloaded all the files
SMSClient.j

View Tutorial          By: Sanjay at 2010-06-29 04:48:16

2. how about the field is multiple times?
is i

View Tutorial          By: g at 2010-10-11 01:09:59

3. hai,
pls help me. i need a full java code w

View Tutorial          By: Shanalal Kasim at 2009-10-19 08:31:03

4. Hi Doug,

This code is for Javascrip

View Tutorial          By: Ramlak at 2008-12-04 02:47:44

5. Hi Binod,

Since JSP code is execute

View Tutorial          By: Aathi at 2009-05-28 21:20:10

6. I am deveolper in envision .i am interested in scj
View Tutorial          By: shiva kumar at 2013-02-20 05:51:42

7. very useful...thank you....
View Tutorial          By: jiby at 2012-01-19 06:40:42

8. Hi Satheesh, Look at http://www.java-samples.com/s
View Tutorial          By: Ryan at 2010-08-31 19:15:28

9. Thanks
View Tutorial          By: Cecilia at 2012-08-07 05:05:51

10. hello how can i get a better java date code
View Tutorial          By: ramutomotest at 2011-12-08 17:44:49