说明：  研究了JXTA平台实现P2P设计及应用。研究了如何在Sun公司的P2P平台JXTA上实现对等点的发布、对等点的发现及对等点间的通信。
(JXTA platform to study design and application of P2P. Research on how Sun s P2P platform JXTA Peer to achieve the release of Peer Discovery and Peer communication.)