1、外文原文 J2EE is a completely different from the traditional application development technology infrastructure, contains many components, the major application system to simplify and standardize the development and deployment, and to improve portability, security and the value of reuse. J2EE core is a g
2、roup of technical specifications and guidelines, which contains various components, service structure and the technical level, have common standards and specifications for all to follow the structure of J2EE platform between the existence of good compatibility, addressing past use of the back-end en
3、terprise information products can not be compatible with each other, resulting in internal or external interoperability difficult dilemma. In the J2EE framework, developers can follow normative basis, and develop enterprise-level applications, and J2EE different suppliers, with the support of differ
4、ent J2EE version of the proposed standards to ensure that different J2EE platform and compatibility between products. In other words, the structure of the plant-based J2EE applications can basically be deployed in different applications on the server, or the need to carry out only a small amount of code changes that can significantly improve application portability (Portability). J2EE from the Sun (SUN) vendors such as IBM and coordinated development of the industry from the technical specific
