计算机软件专业关于P2P软件的实现论文.doc

摘要 Peer-to-Peer网络毫无疑问是当今的热点技术主题。Napster和Gnutella的广泛使用证明了peer-to-peer应用的强大潜力。P2P(或者说peer-to-peer)网络是一种基于操作上下文的网络模型，任何一个节点都同时作为客户机和服务器。J致力于为P2P应用提供一个P2P平台基础。其中包括一系列独立于语言，平台和网络技术之外的协议。这些协议解决了P2P应用的基本需求。协议的设计目标是简单并且低成本 ABSTRACT Peer-to-Peer (P2P) network is a hot topic in technology in recent years. The wide use of Napster and Gnutella demonstrated the powerful potential in application of P2P. The P2P network is a model of network which based on the environment of operation, and each node can work as client and serve at the same time. JXTA offers a basic platform for the application of P2P. And it includes a series of treaties which independence from languages, platform and technique of network. These treaties can meet the basic requirement of the application of P2P。The aim of these treaties is compact and the cost must be low. This article has discussed the structure of P2P network and the basic knowledge of JXTA, and developed a software for chat and share documents in a group from JXTA technique. Key words: P2P，Peer,PeerGroup,Advertisment,XML,JXTA,CMS 目 录 绪论-------------------------------------------------------------------------------------1 P2P发展简史------------------------------------------------------------------------1 1.2 P2P应用程序的用武之地 ---------------------------------------------------------4 1.3 P2P技术的动力 -------------------------------------------------------------------5 P2P体系结构---------------------------------------------------------------------6 2.1 P2P网络------------------------------------------------------------------------------7 2.2 P2P如何形成动态网络-------------------------------------------------------------9 2.3 节点自制-----------------------------------------------------------------------------14 2.4 支持混合模型-----------------------------------------------------------------------15 第三章 JXTA技术----------------------------------------------------------------------------20 3.1 JXTA是什么----------------------------------------------------------------------