The Research And Realization Of Web Services Composition Based On J2EE

The paper is concentrated on exploring web services composition based on J2EE technology on services-oriented architecture system for concrete applications, explored using Web Services Composition technology to develop Service-Oriented Application system and its solutions.First the paper elaborates concepts of web services and web services composition technology, makes complete introduction of web services system structure, its essential technology, running mechanism and the technical superiority, introduces Web Services Composition technique type and key technology, then emphasized business process execution language(BPEL) using for Web Services composition technology and realized an on-line shopping system model.At the prototype system of the paper, it put forward the single-channel mode of Web Services Composition application based on BPEL. It can be easily make new combinations at the original system with this design mode. The paper uses new annotation technology of JavaSE1.6, uses NetBeansIDE tool, simplified the Web service development. It is very convenient to publish the methods at logic module's into web services and it can produce the WSDL document automatically after deployed and can produce the call class of the Web services automatically in the client sides. The composition Web Services is deployed through BPEL engine.Finally, the paper summarized the research work, and discussed the further research work .