一种基于P2P的语义Web服务发布和发现模型

服务发布和发现是Web服务应用中极其重要的环节.随着Web服务数目的增长和对实时性需求的增加,分布式服务发布和发现机制成为Web服务应用的一个新研究方向.对当前Web服务发现问题研究进行了探讨,提出了基于P2P的Web服务发布和发现的工作模型,并以实例说明了其工作过程.该模型采用两层结构:第一层是纯Peer-Peer连接,通过一定的路由机制保证通信的畅通,有效地支持系统的可扩展性;第二层采用集中式的连接方式,各个Peer节点集中连接到指定的Broker,以方便统一管理和维护,提高系统的查询效率.

A P2P-Based Semantic Web Services Publishing and Discovery Model

Service publishing and discovery play a very important role in Web service applications. As large growth in number of Web servicesing and the demand for registries,the mechanism of distributed Web services publishing and discovery has become a new research activity in Web service applications. In this paper, a Web services publishing and discovery model based on P2P technology is proposed,and the work process is illustrated by instance. There are two level in this model. The first level is Peer- Peer connection way, and its routing mechanism guarantees the connection smoothly and supports the system extension effectively. The second level is central connection way, in which each Peer connect to the corresponding Broker directly, so that can make the management and maintenance conveniently,and atso improve the search efficiency of the system.