Blog is a good stuff. If you receive the article on THSERVERSIDE every day, you can know that people who are now java are doing.
Yesterday, I saw an article on the TAG package for the JSP page to display the form. The content of it is recommended to be a TAG package called DBGRID for JSP. The result is a lot of people, because it uses the Connection Database directly in Tag, so that The performance layer and the business logic layer are not separated. From some aspects, this is a little advantage, such as high efficiency, more memory overhead, etc., but in general, it is not in line with MVC thinking. So some people recommend Open Source's DisplayTag and Valuelist, as well as commercial DOTJ, relatively, DISPLAYTAG is relatively simple, useful, but usually meet the application requirements, and because it is OS, even if there is anything that is not satisfied You can also modify the source code yourself. Valuelist is relatively complicated, yet, and it has seen its function demonstration, and more content is more. And DISPLAYTAG needs to put the data Collection in the session, if the amount of users is large, there will be many data Collection in memory, which may have efficient issues, but it is said that Valuelist doesn't have this issue. Commercial dotj features are more powerful, able to support data modifications, but it is asking for money. In addition, Valuelist is implemented, many J2EE design patterns are used, and it is better to structurally.
Valuelist: http://valuelist.sourceforge.net/
Displaytag: http://displaytag.sf.net
Dotj: http://www.dotjonline.com
