Research And Application Of Enterprise-class Instant Message System Based On XMPP

With the development of information and network communication technology, instant messaging systems have also developed rapidly, such as QQ, MSN, the emergence of instant messaging systems created a new exchange method in the new century which was on the carrier of network. The instant messaging systems improved the efficiency and reduced the cost greatly when people communicate with each other, but the various instant messaging systems were based on different protocols, so that the users could not communicate with each other by instant messaging systems, this problem was solved by XMPP (Extensible Messaging and Presence Protocol).Jabber/XMPP which was based on XML was developed by an open source organization. The emergence of Jabber/XMPP leaded to the public competition between developers and promoted the development in the field of instant messaging technology. It also changed the situation that instant messaging systems can't communicate with each other. It was easy to extend the functions of Jabber/XMPP systems, because Jabber/XMPP systems were based on a distributed architecture and modular system architecture. Because of these advantages, the instant messaging system based on XMPP for enterprise became an essential part of the enterprises.The thesis includes the following content:1. A summary about the relevant knowledge of XMPP and the detail process of XMPP.2. The thesis analyzed the requirements of the enterprise-class instant messaging system, gave the overall design of the system and the delineation of functional modules in accordance with the principles of system and function design.3. Realized the functions that were demanded by the systems through combining with open-source package of protocol in accordance with the principles of system design.The thesis focused on building enterprise-class instant messaging systems architecture which was suitable for China's national condition by realizing open source protocol. Practices proved that the framework of the integration was powerful and low coupling. The framework of the integration enhanced the system's maintainability and scalability, which achieved the goals of instant messaging system.