First of all, EJB is definitely the highest end of Dongdong, and it may be a few years in China.
3 floors with Delphi is absolutely high, and domestic companies are compared
Tend to use Delphi.
If you must learn, you can have the following reference materials.
But first you have to understand the foundation of Java's foundation,
Learning EJB also requires a lot of basic knowledge of basic knowledge, because
What you write is not only bean, sometimes you need to write some basic classes to assist.
It is best to go to SCJP first, you will find that you still have a lot of basic knowledge.
1.masteringejb: Recommended to look 2, the first edition is outdated, and Chinese version
(Jing EJB) is very bad, it can only be used.
2.EJB Design Patterns: Very classic Dongdong, but look at Gof
Then
However, EJB design patterns are mainly to improve performance because EJB
It is a distributed application, and network calls are slower than 2,000 times in memory.
3. Professional EJB, is the only introduction to Chinese books in EJB2.0,
Although it is still turning a bad, but it is better than Jing EJB, Chinese name is When you have finished reading these books, you can go to a forum to ask questions or browsses. Help for you will be large, the address is: http://www.theserverside.com. In fact, EJB is just a technology, and the key to this technology is also the language foundation. If you are a Java language master, you may find EJB very easy to master. However, since he is just a door technology, it means that it may be more advanced and competitive. Substitution, such as .NET. So learn the basis of the Java language, learn the object-oriented, Learn UML and design patterns, many technologies can be mastered in a short period of time. I have learned "Tao", I am afraid what "skills"? :)
