Design And Implementation Of Message Service Model For The Heterogeneous Components Based On XML

With the rapid development of computer and information technologies, the information processing systems and applications expand everywhere. However, the present development of application software is always under the charge of different branches, so that the integration for software is becoming difficult. It is important and necessary for different systems to exchange and share the data. The present two technologies of integration are distributed computing based on remote objects call and message service. .The dissertation focuses on the analysis and implementation of the message service mechanism. The main contributions are summarized as the following.Firstly, the message service model named JMB(Java Messaging Bridge) between the heterogeneous components based on XML is proposed, which establishes a bridge between the message middlewares and application severs to transport data and exchange platform.Secondly, the JMB model employs XML as the middle data specification. The three components of the model are described in detail, which are message listener, message service and business logic.Thirdly, the application of the model is presented. JMB is used to develop the interface in bank cost-accepting system.The advantage of the JMB is the transfer between different providers'message middlewares and application servers, or between different message middlewares. The model uses Java, and has the advantages of platform-independent, Comparing with the traditional message sending technologies, such as RMI, the model JMB realizes the communications and operations of heterogeneous components in distributed computing. The model JMB can be employed to construct the loose-combined message systems, which makes the development simple.