Research On The Mobile Agent In Building The Dynamic Web Service Composition System

As one kind of new distribution pattern computer technology, web service has been applied widely around the world for its characteristics of platform compatibility, self express and easy to dispose. The concept of Web Service means one kind of on line application Web Service ,declaration by the enterprises ,fulfill special business requirement, the customer company or application software can visit and use this kind of on line Web Service.Along with the development of society and internet, commonly the customer would like to communicate with several companies at the same time. To accomplish multi-function of the web requires that Web Service reconstruction which means Web Composition, Web Composition is a company through compose fundamental Web Service, supply additional Web Service to the customer. Because of its huge business value, at present, Web Service Composition technology has become the focus of industry group and academe research.The existence Web Service Composition adopt passive static alternation mode, this kind of passive mode has large localization, for fulfill communication at any moment, it needs to set up Web Service dynamic search mode and in serving dynamic alternation relation. We lead in Mobile Agent technology to settlement Web Service dynamic search and synthesize problem, this method will be a correspond good method and means.This paper's emphasis is: utilize the Web Service technology, the Web Service Composition technology and the Mobile Agent technology, fabricate a Web Service system model, take out system frame, from search and position, synthesize, carry out three step to lay out the model, the application layer, Mobile Agent, Web Service, the Web Service Composition implement method, point out the key technology and code implementation.Although system using BPEL4WS only has static bind the in existence method and no very good sustain, in the Mobile Agent System there has dynamic search and alternation can remedy this shortcoming. Therefore this system can undertake good implement Web Service dynamic search, assignment binding and composing under different environments, fulfill the increasingly complicated requirement.