Web应用服务器可扩展热部署机制  

An Extensible Mechanism of Hot Deploy In Web Application Server

作　　者：胡建华[1] 范国闯[1] 陈宁江[1] 

机构地区：[1]中国科学院软件研究所软件工程技术研发中心

出　　处：《计算机科学》2004年第5期21-23,55,共4页Computer Science

基　　金：国家自然科学基金项目(69833030);国家十五科技攻关计划(2001BA205A06);国家高技术研究发展计划(863计划)(2001AA113010;2001AA414020;2001AA414310:2002AA413610)

摘　　要：Web应用服务器为基于组件的事务性web应用提供运行环境和支撑平台。提供7×24小时不间断运行能力是Web应用服务器的一个重要特性,而静态部署降低了服务器的这种高可用性,增大了系统维护和管理的难度。目前主流Web应用服务器均支持热部署,但只支持固定应用类型,不具有可扩展性。为此,本文结合在自主研制Web应用服务器过程中的实际情况,设计了一种可扩展的热部署模型和机制。该机制在不中断Web应用服务器运行的情况下实现部署功能,并提供具有良好扩展性的部署系统结构,支持不断增多的新类型应用。该热部署机制已在中科院软件研究所自主研制的Web应用服务器WebFrame2.0中实现,目前支持包括Web Service等多种应用类型的热部署。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.

关 键 词：WEB应用服务器 热部署 可扩展性 J2EE部署 组件 

分 类 号：TP368.5[自动化与计算机技术—计算机系统结构]