An Extensible Mechanism of Hot Deploy In Web Application Server

The Web application server provides the environment and platform for component-based transactional Web applications. To run without shutting down is very important to the Web application server. However, deploying applications statically reduces this availability and makes it very difficult to be maintained and managed. At present, the existing Web application servers mainly support hot deployment, but the hot deploy mechanism is inextensible and can only support fixed types of applications. An extensible hot-deploy mechanism is proposed in this paper. This new mechanism can perform deployment without stopping and restarting the server, and it is also extensible to support new application types. This mechanism has been implemented in WebFrame2. 0, a Web application server developed by Institution of Software of Chinese Academic of Sciences. As a feature of WebFrame2.0, the deploy mechanism supports multiple application types including Web Services applications.