Research On Web Services Integration Basesd On SOA

In recent years, information constructions of the Enterprise have made mighty advances. Since enterprises lack for global planning of how to build their business systems, they now have many isolated ones distributed in different departments. They act as information islands, which make it impossible to share the information efficiently and even collaborate with business partners. Enterprise Application Integration (EAI) emerged and developed under such circumstances. The object of EAI is to integrate different applications based on different platforms and stages, to make them work together and ultimately to support the whole supply chain.EAI is a complex process. Integration patterns with defects would easily result in inflexibility, non-expansibility, and even chaos. Service-Oriented Architecture (SOA) is a new generation, of architecture ideology applying for distributed software development. SOA has solved the problems of applications for flexibility and interoperability wonderfully because of its features of loose coupling, independent of platform etc. SOA is a kind of standardized light weight architecture, which depends on XML as identical data representation, implements inter-operation of data and function based on SOAP protocol, and accomplishes the description of services through WSDL protocol, and publishes and discovers services using UDDI. It accomplishes an application integration frame of loose coupling through such mechanisms as service description, service publishing, service finding, service binding and service invoking etc. SOA has been the hot topic at present. It will be the dominator of software architecture. Most of the large software manufacturers have apperceived the value of SOA, and taken actions in succession. SOA will be applied widely as efficient solution to implement Enterprise Application Integration and new system architecture of the enterprise.First of all, this paper reviews the current situation and existing problems of the enterprise informatization, and introduces the concept of EAI, and analyzes the necessity. Then, the basis theories of EAI are also discussed. By analyzing deeply the traditional methods of EAI and their disadvantages, the paper introduces the techniques of SOA and web services into the domain of enterprise application integration (EAI), and proposes a method called web services integration based on SOA, which has advantage in loose coupling, low cost, high integration ability etc. SOA and Web Services are developing technologies; they offer a new kind of integration method. After the feasibility and necessity of web services integration based on SOA is discussed, this paper proposes an architecture model called web services integration based on SOA, and designs the process of the implementing integration, and researches deeply the key Technologies of implementing integration(SOAP,WSDL,UDDI et al). Lastly, the paper implements Web services integration based on SOA through the expansion of the relational protocol on different structures, and offers strong base for enterprise application integration based on SOA.