Research And Application Of Web Services In EAI

Web Services is a new distributed model. It is the combination of XML, SOAP, WSDL and UDDI: XML establishes a core to describe the structure used to exchange information between systems, SOAP takes charge of the calling of Web Service, WSDL gives us a formal description of Web Service, and UDDI introduces the ability to discover Web Service. The purpose of Web Services is to construct a technology layer that are independent of platform or programming language on the basis of existing various kinds of different platforms. The application on all kinds of platforms relies on this technology layer to implement the mutual connection and integration, so Web Services create a kind of open distributed system that makes any enterprise and individual in any place can utilize Web Service and engage in various kinds of business activity and other various kinds of activity. It is exactly these characteristics making Web Services an ideal solution of EAI.This paper mainly discussed the basic concept of Web Services and technical specification systematically (XML, SOAP, WSDL and UDDI, etc). Besides, there is a specific example about data upload/ download in order to demonstrate the function of Web Services. There are six chapters in this paper:Chapter 1:This chapter introduces the concept and type of EAI, the relation between Web Services and EAI, the research background, and the main contents of this paper.Chapter 2:This chapter describes whole framework of Web services technologies, mainly discusses the definition of Web services, the model of Web services, the operation mechanism and the technological framework of Web services.Chapter 3:This chapter mainly describes the foundation of Web services-XML, discussing the relevant concepts of XML in detail.Chapter 4:This chapter mainly discusses three key technologies of Web Services: SOAP, WSDL and UDDI, giving detailed explanation with examples.Chapter 5:This chapter gives an example that is a module of data upload/ download, analyzing the implementation mechanism of Web Services.Chapter 6:This chapter summarized weak point of the system, and describe the future development of Web Services.