Research for real time information transfer scheme based on HTTP persistent connection

The traditional work model of HTTP is a pull technology. This model is characterized by client making request and server-side response. But In some cases this pull model can not meet the requirements of data transferring between client and server, such as monitoring and controlling system, instant messaging system. These systems need to implement a real-time data transfer mode, which is a push technology. With the fast development of HTTP, asynchronous transfer and TCP persistent connection have bean widely used in the web application. But these technologies for real-time transmission of information have still many problems and disadvantages. In this paper, using the technology of persistent connection based on HTTP to implement a scheme of real time information transfer, and using this scheme in an application of network management based on CORBA. This scheme implements a new web services based on CORBA and push technology. Compared with other technologies, it has advantages of better adaptability, versatility, and security.