On technology of middleware

With the development of Internet technology, middleware has become an effective plan for accessing database on Web page. This paper introduces the definition, features and classification of middleware, comparing the advantages and disadvantages of various middleware techniques. In recent years, middleware technology has been widely used in developing the information system of GPG. And Web application server based on EJB, CORBA or DCOM techniques will be used in the new ERP system to be developed, i.e.the middleware technique enabling all bottom-layer services will be adopted.