The Design And Implementation Of Publish/Subscribe System Based On WSN

Web Services gradually replace the traditional advantages of loosely coupled distributed computing technologies by virtue of their sound packaging, platform-independent, language-independent and good compatibility. So it become the world's first choice in enterprise application integration and distributed applications interaction. However, with the expansion of the scope and the growth of complex, only supporting basic information exchange has been unable to meet the demand. Supporting complex information exchange models will make Web Services display greater advantage in solving more complex application.The Publish/Subscribe message exchange pattern is used in many domains, like Message-Oriented Publish/Subscribe systems provided by Middleware vendors and device management domains and so on. The related research work has launched, at present two standards—WSN (WS-Notification) and the WS-Eventing has released. Web Services Publish/Subscribe systems defined in WSN is general and based on the theme, which implements the interaction based on Web resources framework, and the define some interface used for dealing with publish/subscribe model notification based on theme. Integrating publish/subscribe information exchange model to the Web Services framework is favorable to deal with more complex enterprise application integration and achieve the automation business.This paper describes the publish/subscribe information exchange model and WSN specification and analyze the key technologies that Web Services support publish/subscribe information exchange mode; such as information mechanism and publish/subscribe mechanism, system and the role of notification strategy. On the basis of researching the overall structure of WS Publish/Subscribe systems, we propose a solution of system design and key model. At last we accomplish WS Publish/Subscribe the system and testified its function and technical indicators.