learn j2ee

large number of users. J2EE Technology In the following section, we will describe various technologies that constitute J2EE and learn how WebLogic servers support them in a distributed application. The most common J2EE technologies are JDBC, JNDI, EJB, JSP, and servlets. We will take a closer look at these techno

= bin + demo + include + JRE + lib + src.rar/Sun's official jdk1.4.2J2EE = JDK +... // The JDK here is different from the JDK File above. The reason is as mentioned above.The other is a separate J2EE server. You must install the j2se SDK before installation.After installation, you must set the java_home, j2ee_home, and classpath environment variables before running the J2EE server. To facilitate developers

application server, learn how many connections have been defined, compare the number with the typical number of concurrent requests, and quickly determine whether more connections are needed. 　　Improve Interactive Operation Capability Your performance management tool not only needs to identify the composition of the response time of the J2EE layer. It should also let you see the interaction between the

server, learn how many connections have been defined, compare the number with the typical number of concurrent requests, and quickly determine whether more connections are needed.　　Improve Interactive Operation CapabilityYour performance management tool not only needs to identify the composition of the response time of the J2EE layer. It should also let you see the interaction between the

gain an in-depth understanding of Java's advantages and disadvantages. The value of Java is far more than just a language. Understanding platforms (such as JDK and tools) is equally important. Specifically, you should be a certified Java programmer. If you are not a Java programmer, you may be surprised at the fact that there are so many unknown content. In addition, you can add the Java mail list. Every company that I joined previously has added such a list of emails. It is your best resource

Here I will talk about the j2ee process and the experiences and lessons learned in this process. In this way, the latecomers will be less likely to take detours.Java has developed into three main parts by application: J2SE, j2-and J2EE. These three modules complement each other and have different application scopes. J2SE is the standard version of Java2 and is mainly used for programming desktop application

describes the J2EE 1.3 platform and provides an overview of the J2EE tutorial. The J2EE tutorial uses an example-based method to describe the features and functions of the J2EE SDK 1.3. Whether you are a newbie or an experienced enterprise application developer, you will find that the

with J2EE be beneficial to rails? Absolutely not. J2EE is a set standard with many fixed implementations, and, most importantly, it is a proven technology. I suggest you download a copy of rails and study it yourself. Many of the available tutorials are introductory. These tutorials allow you to start using rails immediately. Again, I cannot guarantee that you will be happy by using rails, but I bet you wi

4. Plan to use J2EE Security from the very beginning. Enable WebSphere security. This allows your EJB and URL to at least allow access by all authorized users. Don't ask why-Just follow the instructions. There were very few customers who planned to enable WebSphere J2EE Security from the very beginning, and we were surprised by the 1.1 straight forward. It is estimated that only about 50% of customers p

design mode is an implicit "bridge" between Java basic knowledge and J2EE framework knowledge ". Why is it implicit? The gof design model is a hidden "bridge" Many people did not notice this. After learning the Basic Java language, they went to learn J2EE directly. Some even ran away and used Weblogic and other specific J2EE