Ajax, a mine.

Recently, Ajax is very popular.ArticleThere are three, three, and four about Ajax, and they have been like this for a long time. It's just a way to improve the user interface. As a result, I mentioned the height of the framework and felt a little uneasy, so I ran the risk of being hot by steam and jumped out to pour cold water on the hot iron block of Ajax.

What Is Ajax, that is, packaging of JavaScript, xhttprequest, DHTML, and other technologies. I have carefully studied the use of ajaxpro. NET system automatically generated HTMLCodeAnd JavaScript code. The server uses reflection to call a function on the page. The client uses xhttprequest or IFRAME, uses XML packaging, communicates data with the server, and uses JavaScript to fill in HTML text on the page. Ajax Components Package these complicated technologies and developers can conveniently call them.

In the IT industry, major giants fully develop business operations and compete with each other. In general, technology is the first competitive, but commercial operations are like convex lenses and concave lenses, amplifying or narrowing the power of technology. While industry leaders are moving forward, many mines are arranged on the road to block latencies. Some mines are filled with patent explosives, some are exaggerated, and some are unremarkable, sometimes, to test the power of mines, they are covered in sugar and presented to active developers with a sincere smile. Ajax is the biggest mine provided by giants recently.

Corresponding to the technologies provided by others, we should see through its heart, liver, spleen, and kidney. The same is true for Ajax. The goal of AJAX is to make the page refreshing, but to improve the availability of the B/S system, without looking at other advantages, the development process is complicated and there are problems such as potential scripting attacks. The world's firstProgramIt must have been a sensation when it came out, but the mouse menu only improves the operational availability of the application, not silver bullet, and Ajax is probably the same. Whether Ajax is used or not, the database is still the same, and the business logic should be handled as needed.

The user interface is very important. Users may face this user interface every day for several years, so it is very important to talk about the user interface. for users with low computer level, the interface is basically all. However, as developers, we must not only consider the user interface, but also understand the technology and know where it is applicable. Ajax only improves the user interface, it does not affect the data structure, business logic, and cannot improve the running speed. It is unlikely to propose a system framework simply based on AJAX interface technology.

Ajax: It's time to reduce the temperature and let it cool down to the appropriate temperature. You should also recognize the advantages and disadvantages of Ajax and use Ajax technology more rationally.

Yuan Yongfu (http://www.xdesigner.cn)