中文摘要：

Web服务是一个崭新的分布式计算模型,是Web上数据和信息集成的有效机制。然而,随着Web服务的日益增多,传统静态的Web服务调用方式已不能满足人们的需求,Web服务调用的静态或半自动化一直是面向服务应用的瓶颈所在。从不同侧面综述了国内外在该领域的最新研究现状,分析了服务调用的方式和难点,比较了静态调用和动态调用的区别,给出了服务动态绑定与调用的基本方法和步骤。从而降低服务双方的耦合性,使Web服务在分布式计算环境下发挥更大的灵活性。

英文摘要：

Web service is a brand-new distributed computing model,and it is an effective mechanism to integrate the data and information on the Web.However,with the increasing numbers of Web services,traditional static Web service invocation cannot satisfy people＇s needs any more,semi-automatic or automatic invocation is always the bottleneck of Web service invocation in service oriented applications.Summarize the research on Web service binding and invocation from different aspects at first.It then analyzes the manner of service invocation and difficult,compares between the static and dynamic invocations,gives the basic steps of service dynamic binding and invocations,thereby reducing the coupling of both services side,and makes Web services play a greater flexibility in a distributed computing environment.