| With the rapid development of information technology and amount of social information, knowledge has become the important motivity. Knowledge management and sharing has aroused great attention among the reseachers. As one of the most valuable knowledge resource, academic paper sharing has very important practical value. P2P is a widely used resource sharing technology. It provides a convenient realization method for academic paper sharing.JXTA technology is a new kind of P2P computing technology that is proposed by Sun Microsystems Company in 2001. It is used to provide an infrastructure service for P2P application. JXTA technology is developed as a common network computing platform on which peer-to-peer and distributed services and applications can be easily constructed. With the help of JXTA, the developer need not consider too much about how to resolve P2P computing technology, so they can concentrate on designing high-level application with scalability and high availability. JXTA provides a common set of open protocols and an open source reference implementation for developing peer-to-peer applications. The JXTA protocols are designed to be independent of programming languages and communication protocols.Clustering search's purpose is to help users find information quickly, it's outstanding feature is based on a property, on the search results returned by the cluster. Retrieve information quickly and accurately so as to achieve the purpose, helping improve the retrieval accuracy. In recent years, the rapid development of clustering search abroad, some technology is more mature. By comparison, the domestic research is still relatively small, but there are also many Chinese search engine introduced a clustering technique to improve the retrieval accuracy and efficiency of the Chinese.This paper first summarizes the P2P network techno1ogy and introduces the core protocols and architecture of JXTA based on the P2P network. The advantage and limitation of JXTA search stratage is analyzed in detail through deep research on it. An improved search stratage is proposed aimed at the defect of JXTA search efficiency being easily affected by network fluctuation. At last, the P2P Paper Sharing System is designed and realized based on JXTA architecture. The system realizes the share, Clustering search and download of papers in P2P network. Besides it has the function of automatic extraction and preview of the metadata of papers, support of searching on file name, metadata of a paper or advance search. |
