| Message Center is a message application in an enterprise portal site. The background is that there are lots of information in the portal site which needs to be send on time in a low price way.And another important aspect of the thesis is that the improvement of the technology, especially the opensource improvement of the J2EE. In this thesis, based on the analysis of the technology we used in the initial design, we improve the design with new technology for the Message Center..In the first chapter, the related technology and system used in this thesis will be summarized and analyzed. They bring forward idea and approach to the Message Center system addressed in this thesis.In the second chapter, the business requirement and architecture design of Message Center will be introduced.In the third chapter, the technoloty of the EJB has been deeply analysised and some improvement of the Message Center application has been raised.In the forth chapter, the new design has been developed.At last chapter it summarization of this thesis and the future work will be introduced. |
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