AJAX basic application topic: http://www.csdn.net/subject/ajax/
Ajax
Ajax: Abbreviation of Asynchronous JavaScript and XML
Basic role of AJAX: refreshing new pages
Now Google Suggest and Google Maps use Ajax. Through Ajax, we can make the client get rich application experience and exchange operations, without the user feeling that there is a Web page submission or refresh process, the page does not need to be reloaded, and the data exchange of the application is hidden.
The traditional WEB application model works like this: User Interface operations trigger HTTP requests, and the server processes some business logic after receiving the requests, such as saving data, then return an HTML page to the client. However, this method does not give users a good application experience. When the server is processing data, the user is in the waiting state, and each step of operation needs to wait, too much waiting will make users less and less patient. Ajax is very different. It uses the Ajax engine to make the application process natural and smooth, because it only exchanges useful data with the server, the page display and other unnecessary data are not reloaded. The Ajax engine is actually a comprehensive application of JavaScript, XML, XMLHttpRequest, and other technologies.
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AJAX technology Summary
Ajax principles
Ajax topics
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