Research Of Web Services Technology Based On J2EE

The main purpose of the paper is to study how to build an enterprise SOA by using Web technology. SOA is not an abstract technical term for software engineering any more now. Implementing SOA has already a specific technology and platform. That is, a guiding service-oriented concept, to develop service-oriented solution by making use of web services technology and build the base foundation services-oriented enterprise architecture.The research is based on the basic technology implementing SOA. Constructing SOA requires the use of the services-oriented principle, SOA model and corresponding technologies. I choose Web services to implementing SOA. This research proceeds in three steps as described below. First, it will analyze Web services technology, especially Web services communication frame. And it deal with service role , service mode, service description and message between services interactive in detail . Second, it describes the details of service-oriented concept. In the internal SOA, services comply with the principles of service-oriented. Service is the autonomous and logical units. Designing services and service levels are the most crucial part building SOA modeling. Finally, it discusses the SOA modeling. The most important of the two phases during the process of delivery of SOA projects is a service-oriented analysis and service-oriented design. Service-oriented analysis is the process of determining how the service-oriented approach describes the process of the business automation needs. The main issues discussed are which services is needed and what logic should be packaged in the services. In particular, which service layer is needed and how to complete its delivery, would be the key to create a whole service-oriented environment. Service-oriented design is that derives specific physical design services from the logical candidate services, and then assembles to achieve abstract composition of business process. It needs unknown work flow definition and links services together into a logical flow of polymerization unit.The purpose of the project is to build an intelligent building OAS software architecture. Through design intelligent building leasing module, it calls for the definition and design of services and how services between the message passing. Finally it builds up a service-oriented architecture for enterprise application integration framework.