The Development Of Document Library Full-Text Search System Based On J2EE

The use of enterprise applications is expanding rapidly as the need for expanding Internet and E-Bussiness. So how to develop enterprise applications rapidly and effectively becomes more and more urgently. Multi-tiers application solutions such as J2EE have satisfied the demand perfectly. J2EE is a mature enterprise application solution and this is approved by the fact. J2EE has a lot of supporters and has been applied in many enterprise cases in oversea markets. And it becomes more and more popular in China.At the same time, full-text retrieval technology develops rapidly. Many database manufacturers have equipped their products with full-text retrieval engines. Since it is integrated with database, this kind of search engine is more effectively, easy to manage and easy to use.In this paper, J2EE architecture and many key technologies inside such as EJB, JSP, Servlet have been studied. The full-textretrieval technology of Oracle database-Oracle Text is alsostudied. A document library full-text search system is implemented. The system uses J2EE architecture. Oracle database is the data tier, EJB is the business tier, and JSP+Servlet is the display tier. Oracle Text is applied to implement full-text search in Chinese and English documents with many kinds of formats.In chapter 1,the actuality and demand of full-text retrieval and the J2EE architecture is introduced. The main research objects are also described in this chapter. In chapter 2, the theories and development trends of full-text retrieval technology of database are introduced. In chapter 3, the J2EE architecture is described. Includes the development, advantages of J2EE architecture. The emphasis is EJB technology. And the comparison of J2EE and .NET is also described. The design and implementation of the document library full-text search system is described from chapter 4 to chapter 6. There are requirements analysis, outline design and detail implementation. The key technologies are also described inchapter 6. The interface and experimentations result is delivered in the appendix C.