j2ee books

Currently, the Java 2 Platform has three versions. These are the Micro version of Java 2 Platform (Java 2 Platform Micro Edition, j2_based) applicable to small devices and smart cards) java 2 Platform Standard Edition (J2SE) for desktop systems and Java 2 Platform Enterprise Edition (Java 2 Platform Enterprise Edition, j2EE ). J2EE is an architecture that uses the Java 2 platform to simplify the development

In this issue of J2EE pathfinder, Java developers and consultants Kyle Gabhart explained why message service is crucial to the enterprise's architecture, what types of obstacles must your solution overcome, as well as alternative solutions besides Java Message Service (JMS. At the end of this article, he analyzed three available solutions (Simple JMS Client), session beans used in combination with JMS, and message-driven beans ), specific guidelin

1. IntroductionThis article introduces the configuration of the J2EE environment. All the files involved are in the oncfig directory under the J2EE installation directory. These files are all text files, and you can have any text editor to edit them.Normally, you do not need to change these files. However, if the database driver you are using is not cloudscape, you need to configure it according to the cont

Author: Weng ChiyuanEditor's note: to help beginners of J2EE in China, I wrote this article, hoping to help Java enthusiasts.Article content:1. This document demonstrates how to configure a standard J2EE development environment step by step.2. Start cloudview of the cloudscape database and create a database.3. Let the reader develop the first EJB program4. Set the datasource of the EJB and deploy the ap

Manager provides transaction services for application servers, resource managers, independent applications, and student resource managers. Differences between JTA and JTs: JTA is a high-level transmission API that allows applications and J2EE servers to manage transactions. JTs indicates the specific implementation of the Transaction Manager. 12. javamail Provides mail storage and transmission functions. He is the core of the mail function in progr

Recently, with Layer-3 development, how to handle exceptions on BLL (Business Logic Layer) is confusing. Finding Relevant materials is also a bit rewarding. The following is a relatively easy-to-find document. -------------------- Currently, J2ee projects are logically divided into multiple layers. The classic architecture is divided into three layers: presentation layer, business layer, and integration layer (including database access and external sy

I have been sorting out and reviewing J2EE notes recently. Although I have read the J2EE video, I am still familiar with reading my notes, when I really understand a certain concept, I rubbed my notes with my previous video impressions. The main content of J2EE is the specifications, and then I am clear about the concepts, at this stage, the goal is not to master

Currently, the Java 2 platform has three versions. These are the micro version of Java 2 platform (Java 2 platform Micro Edition, j2_based) applicable to small devices and smart cards) java 2 platform Standard Edition (j2se) for desktop systems and Java 2 Platform Enterprise Edition (Java 2 Platform Enterprise Edition, j2EE ). J2EE is an architecture that uses the Java 2 platform to simplify the development

Currently, the Java 2 platform has three versions. These are the micro version of Java 2 platform (Java 2 platform Micro Edition, j2_based) applicable to small devices and smart cards) java 2 platform Standard Edition (j2se) for desktop systems and Java 2 Platform Enterprise Edition (Java 2 Platform Enterprise Edition, j2EE ). J2EE is an architecture that uses the Java 2 platform to simplify the development

Hibernatestruts Data Structure beanweb This article describes the Data Representation Methods at each layer in the J2EE architecture, including: 1. formbean is the data representation at the web layer; 2. Vo is the data representation at the business layer; 3. The data in the persistence layer is po. Form bean cannot be passed to the business layer. Po can appear at the business layer in specific circumstances, such as Hibernate, instead of VO, bu

J2ee specifications-Servlet, j2eeservlet 1. What is servlet. Servlet is a java class that provides protocol-based request/response services. Servlet is a server-side Java application that has the characteristics of being independent from the platform and protocol and can generate dynamic Web pages. It serves as the intermediate layer for client requests and server responses. To put it simply, servlet serves as a bridge between the client and the se

The foundation of J2EE technology is the Java 2 platform. It not only has all the functions of the J2SE platform, but also provides comprehensive support for EJB, Servlet, JSP, XML, and other technologies, at the same time, J2EE also has the characteristics of one-time compilation and running everywhere, with great flexibility. The following describes the features of the thirteen

J2EE is the mainstream platform for establishing and developing various Web applications. This article proposes an improvement solution for the problems existing in user logon in the system, and describes in detail the working principle of the system, the specific implementation content is provided for specific businesses, which provides feasible solutions for implementing unified authentication and centralized system management and permission managem

Cache is a technology used to improve system response speed and system running performance. Especially in Web applications, caching page output results can significantly improve system performance. In this articleThe author introduces Oscache, an open source project that implements the web application layer cache function in the J2EE framework. By applying Oscache, we can not only implement the commonThe cache function can also improve system stabilit