J2EE suggested learning route!
On the Internet, the bookstore provides a lot of information, many ways can get J2EE information. How to system, efficient learning J2EE this problem is in front of us. For example, some people don't know how to start after reading a lot of books. Waiting for these issues is our most difficult. How do I find a good way? In fact, in order to see a point of view, such as learning English, a total of three levels, first is the vocabulary, then the syntax, then the habitual usage (I hope the reader can consider the problem from the perspective of programming, see these two What is similar to what they logically, they are the same. For example, on the mathematics class, the teacher is in the blackboard, everyone is very easy to understand, there will be many problems when you do it. These seem simple questions, in fact, it contains a truth: theoretical connection is actual, theoretical guidance practice. Our theory is that we have a good way. Some people have seen a lot of books, wrote a lot of procedures, and the level is still very slow, it is difficult to cross this difficult relationship. Or method problem. Of course, the method I talk about is your own experience, experience, everyone has its own unique way. There is no absolute good, absolutely bad way, see who is the object. So here we focus on the way I will mention in this article. Everyone comments comments. In the previous article (going to J2EE, long road), I talked about learning J2EE is a long process, right, just. Because she contains a lot of new things. Moreover, J2EE is now performed. We know that J2EE consists of many technologies, such as EJB, XML, JDBC, RMI, JSP, servlet ,. . . . Wait these, but also contain a lot of content. Regardless of how these specific technologies develop, how can we change, we have to grasp the main line, that is, master the essence of the J2EE architecture. What to analyze it, the role object is nature is J2EE Specification (the latest version is 1.4, http://java.sun.com/j2ee)! ! ! Of course, the premise of learning J2EE is that you have enough familiar with J2SE, and there is a good attitude and interest. Just look at the J2EE specification is not enough, it is best to think about the products and examples, I suggest that you use JBuilder 7 Bea Weblogc Platform 7.0, this development mode. Why do you say this? First, the functionality of JBuilder 7 itself is good and should belong to the mainstream java IDE. Second, Bea WebLogic Platform 7.0 has a good level of J2EE Specification's latest support, and it is also easier to get, and people use more. Third, the development efficiency is good. (Borland website has a document that is developed by JBuilder 7 Bea WebLogic 7.0.pdf format.http: //bdn.borland.com/Article/0,1410,28943,00.html) JBuilder 7 itself provides a lot of help documents There is a PDF format, and there is also an HTML format (using Javahelp technology), and some bookstores have some JBuilder reference books. Personally think that there is no need, first, the version is more old; second, there is no content; third, It is generally a helper documentation provided by plagiaring JBuilder itself.
(Personal view, no commercial purposes). Of course, your foreign language is almost the level of four levels. This can not be no, at least reading is good (in fact, I am also afraid, but after starting, the English data is also very simple, and very authentic! Also improve your foreign language). WebLogic is also good, and also provides a lot of documents. There is a WebLogic Bible on http://www.bestdown.com, and the domestic BEA has seems to have a book. It is interested. You can go,
Http://www.china-pub.com
Look. With these two, we need to find the right object to learn. It will give you a reference here. First, this place in JBuilder 7 installation directory, ~~: / jbuilder7 / samples / ejb / ejb20 / eSITEWL, has a good example, esite. Among them, the Session Fa? ADE design mode is used, and techniques such as JSP, Servlet, Session Beans, Entity Beans (CMP) are used. You can refer to the second. That is, second,
http://java.sun.com/j2ee/tutorial/index.html
J2EE TUTORIAL data provided, very good, Sun. Third, Java PET Store, just started learning J2EE technology to analyze this example is a bit difficult, and then the J2EE architecture in this example is not very practical, but she gives us almost all core technologies of J2EE, and also provides a book Design Enterprise Applications with J2EE Platform, very good. Fourth, it is recommended to understand the J2EE architecture. After the EJB, XML, JSP, SERVET and other technologies have better understanding and program experience, it is recommended to see these books. "J2EE In Practice", "Core J2EE Patterns", "Sun Certified ENT Architect for J2EE - Tech Study Guide", "Java Tools for Extreme Programming - wiley", "EJB Design Patterns", "MasteringEJB 2", "Enterprise JavaBeans, 3rd ", you can see :). With the above foundation, combined with some experience in the project, I think there will be a lot of improvement. After prelimating the above-mentioned basis, each of us can have its own position in J2EE. For example, some developers can consider spending time spending the business logic layer, others like Huafu in a representation, more greedy guys All layers in J2EE. There is also the focus of Web Services (J2EE 1.4 Specification, estimated to launch in early 2003, future important development direction).
