Research And Design On The Distributed Technology Based On J2EE

Since the middle of the 19th century the springing out of the computer has impose a great impact to the society. The technology and the use of the computer has been promptly developed and also has gone every corner of human life. The network technology makes it easy for the computers all around the world to be connected together, and the information can be shared and switched. Especially since 90s , with the great development of the technology the internet, industries from every area all have been influenced in a certain degree. The internet environment coming into being within the scope of the global area, human beings has stepped into an new epoch of information which is on the of the internet. The serious problem that the quantity of the information increases in geometric series and the share request of the cross platform makes many application systems now face one same problem that they must immigrate themselves to the internet. At the same time, with the development of computer science and Internet technology, and Enterprise's demand such as distributing of the data, the expansibility of the system and the difference of the platform, more and more Enterprise use Internet protocol standard and Distributed Object Technology to construct their E-commerce or Intranet to share their data and issue information. With a few years development, construct distributed Enterprise application system on the Internet has become the mainstream of the technology.Today, it is not suitable for the development of distributed application adopting the traditional structured and Object Oriented method. At the mean time, some new technologies have appeared which are based on the distributed object. These new technologies provide the more powerful solutions to support the software designing under the distributed computing environment. The technologies of distributed object have now become the core technologies for the main frame of service. There are four mainstream technologies which have the typical characteristics of the distributed object when developing the large distributed application system. They are: CORBRA technology by OMG organizing, the Java technology of SUN Corp. ,the COM+ technology of Microsoft and the late technology of Web Service.In this thesis we make a deep research into these mainstream distributed technologies especially for the distributed object technology based on the J2EE.And then in depth we analyze and debate the J2EE and EJB which is the key component technology of J2EE.And at last we take a specific application system which the author has took part in for example to give a complete illustration for the establishment of the system taking the J2EE technology at the application standard of enterprises.When designing the oral English test application system we give in the thesis, we adopt the advanced software designing platform: Jbuilder 9 as the IDE and integrate the technologies of JSP, Servlet and EJB. And we adopting the WebLogic Server as the application Web server. And also we give the method to design the registration module of the whole system using the J2EE mode.