EJB learning development tools For beginners, it is best not to use Juilder, because it is not easy to understand the specific mechanism, it is recommended to use JSDK Tomcat if you have a large memory, or use WebLogic.
Definition: Enterprise JavaBeans, Java Languages, the components of the server segment are standard; from another perspective, it is a protocol between servers and application components, through it, people can use components To deploy, introduce, load, and run for existing logic, which can be seen that the function completed by EJB is the most necessary and most basic for our applications. A misunderstanding that appears in the process of learning: EJB imagine the Javabeans of the server. Later, it was found that there was no direct connection and the difference was very good. Differences: 1) JavaBeans is mainly running on the local client and serves a single process. The EJB component is always distributed, which is the most fundamental difference. 2) JavaBeans support component borrowing, can be deployed in the form of ActiveX; EJB cannot be deployed in the form of ActiveX 3) JavaBeans may have a variety of attribute editing, such as: BeanInfo classes; EJB has a description file (deployment descriptor), used for Describe the functionality of EJB facing the external development tool.
