[펌] Sun Blueprints starts to address AJAX in J2EE

Sun Blueprints starts to address

AJAX in J2EE

Posted by: Joseph Ottinger on April 14, 2005 @ 01:25 PM

The Sun Blueprints project hosted by Java.net has started to address "Asynchronous JavaScript and XML (AJAX) with Java 2 Enterprise Edition" to enable dynamic web applications. From the Blueprints:

We have seen that there are many possible problems that AJAX interactions can solve. J2EE technology provides a good base to develop and deploy AJAX based applications with APIs for tying in HTTP processing, databases, web services, XML processing and business objects. With a better understanding of this interaction model, today's applications can become more interactive providing a better experience to the end user.

Use cases indicating appropriate use of AJAX, according to an explanatory document, include:

• Realtime form data validation
• Auto-completion in HTML controls
• Master/detail page interactions that might not otherwise require complete page redraws
• Sophisticated UI controls
• Data refreshes for limited data (i.e., scores, forecasts, or stock prices)
• Server-side notification polling

Disadvantages are also detailed, including complexity, standards issues (with XmlHttpRequest not being formally part of Javascript yet), implementation differences in browsers, debugging (since executable code is now on client and server), and exposed source code.

The blueprints team steps through a detailed analysis of four examples showing how AJAX works, with online examples still forthcoming.

Have you used AJAX? Do you think the blueprints team represents it properly? What tips do you have for design and integration with J2EE? How do you compensate for browsers that don't work with XmlHttpRequest as expected?

 

원문 : http://theserverside.com/news/thread.tss?thread_id=33319

요사이 주변사람들과 같이 관심을 두고 있는 Ajax....

rich client시장이 죽은듯 보이다가 요새 다시 일어나면서 주목받고 있는 녀석....

상당히 유용하긴 할 거 같아서 보고는 있는데...아직 적용은...-_-;;;