Initial field involving Java, Java felt as if no entry is C, C ++ entry fast, no tools Turbo C, Visual C ++ easy to use (to accompany his broken machine really can not afford to JBuilder, greedy, be sure to clean up after her) What JAVA_HOME, CLASSPATH, virtual machine concepts are the basis for the first time, the person next to rarely use of Java. Java is the feeling of doing Applet. slowly know 2, JDK, J2SE, J2EE, J2ME, etc. in the new term spread his mind. slowly they know the organization JCP to develop Java is the birthplace of the relevant specifications, then subscribe to a mailing list. really good thing ah, on a regular basis with the latest trends in Java, so Java dynamic collect all eyes Houli, suggest that you go to a subscription. free. yourself downloaded Java (TM) 2 SDK and Java (TM) 2 SDK Documentation, do not understand and check the Java (TM) 2 SDK Documentation, especially easy to use, does not require any manual like, I suggest that you should have a copy. after pitching the Java development environment, remember or use UltraEdit editor and compiler (which can be in with a good Java compiler environment). slowly the use JCreator . well, at least there are many ways to improve the most open Began selling a set of <Java 2 core technology> 2 books, not bad. For starters, it is enough. Slowly know <Thinking in Java> is a good book, and later learned that after the experience with Java, this book is particularly enjoyable to see, so it's always looking. cycle point of view, the effect is particularly good. slowly know Oreilly company (pdf format). jjhou slowly know this man. () and his personal website, I am most interested in is jjhou teacher to write essays, book reviews, rewarding, not technology for technology. very interesting. among them, there are a lot of beautiful books. I do not know what time to start doing the project, something previously seen from the book, slowly have a good opportunity to review the project, with the feeling slowly began mainly with Swing, develop desktop system, how to place a button to put too bad, and then we have a layout manager. Well, this mother of Java is also very annoying Starting related to database access, JDBC. I learned later, Sun's Java Web site has a Java Tutorial. (). At the same time, also knew Mr. Cai ?? of sleepless in java (), too beautiful, beautiful very. Full, OReilly, is also a good place. there are many excellent articles. each time, after the United States and the United States enjoy a meal, but also to feel that they are not learning should put it another way, because this learning effect is not very good. chaotic. reminds me of Java specification, right, I began to study the Java specification. the specification is most start downloading JDBC specification, a glance many concepts, especially DATABASE transactional control yourself slowly have a more in-depth understanding for her to understand. for developers C / S structure, for example, Swing + JDBC, database application development system, so I learned to develop two-tier structure of the application system. very vigorous. do not know when to start developing a website based on Linux + JSP + JavaBean + Oracle's the system is very interesting Why do you say because, unlike more than a layer between Swing + JDBC development model systems (JavaBean, so let's call it hee hee!);.? At the same time, many left-oriented development technologies and systems Do not Kind, such as paging technology. After the completion of the project, their own for many aspects of Java are more understanding. Start thinking about a problem, J2EE is what? We learn about Java in three directions, first, desktop systems, including C / S structure; second, J2ME, for unlimited fields, promising guy, take a look at China's mobile phone users will know the third, business-oriented applications, computing platform, J2EE, after a painful choice, I choose J2EE.. .. to share the joy J2EE brought me to learn now, the biggest feeling is: simple is beautiful, the United States will not have to learn Java MFC is pain, there will not be hard to analyze the STL, network application. on is not inferior to C ++. I began to enter the J2EE journey. or download a J2EE specification, a J2EE SDK. J2EE began to study, in conjunction with J2EE Tutorial began to study the offer. after about a month, began feeling, and also at this time, I need to finish a project J2EE architecture aspects. almost learn to write is complete, Many of the concepts are not very clear at the finish, because too many things, mainly JSP (Servlet) + Session Bean + EIS architecture development system. Of course, learn a lot, at least not a problem for the preparation of SB EJB. Know JSP how to call EJBhh. after the completion of the project, I began to study the Java Pet Store, was very enjoyable. began to know the Servlet filters, XML aspects of a more comprehensive knowledge, know the entire J2EE framework of the practical application of various techniques. slow slowly, he began to study the configured WebLogic Pet Store (also Sun's). slowly analyze difference between the two at the start of the J2EE Specification have a good feeling because the J2EE Specification itself is very serious, but Pet Store gives vitality. in repeated study, I understand 70m80% J2EE architecture. the new issue came out, how the actual business will build a J2EE system? with this question, I start analyzing Core J2EE patterns, the book. there are also EJB design patterns. slowly, begin to know the charm of J2EE, J2EE know why it would get more good acceptance in the enterprise. As we all know, design patterns Word, work in the company, your boss will look at your code? Appreciate your DP will do well, I think very few. In the remainder of the completion of your work schedule, overtime, overtime, overtime again, I do not think you more time to analysis of DP. However, J2EE framework is not the same, she built a lot of excellent design mode, we design and development, J2EE framework of a system used in many design patterns. For example, MVC, EJB encapsulated DAO design patterns. J2E system architecture with Session Fa? ade, Message Fa? ade design patterns will not be too difficult. it also later J2EE attracted me. slowly I know, as a J2EE developer, which we must grasp the core content. personally, I think, three aspects are important. implementation of common architecture, design patterns EJB system, such as session fa? ade, message fa? ade, DTO and other .J2EE system architecture commonly used mode .UML-> EJB, EJB-> UML mapped to each other.
Reproduced in: https: //www.cnblogs.com/521taobao/archive/2012/03/17/2402489.html