基于WSRF的网络实验平台设计与实现

WebService是无状态的服务，在以WebService方式实现网络实验平台的设计过程中，大量的实验尤其是交互式的实验，在以WebService方式调用中会产生大量的中间状态，这些中间状态以厦它们之间相互转换的问题不可避免。因此，提出采用WSRF把实验中产生的状态定义成状态资源进行管理的办法。同时，针对状态资源之间状态转换的问题，结合状态机的原理在WSRF的基础上，设计了一个状态转换管理接口实现对状态资源转换的管理。最后，以串口通讯的实验为例详细说明了状态管理接口的实现方法。

WSRF based online lab platform design and implementation

Web Service is the stateless service.When the Web based experiment platform is designed,lots of experiments especially for the interactive experiments make some intermediate state.And the state transition among these states is inevitable.Therefore,WSRF specification is used to manage the states,which are defined as the stateful resource.Thus taking the problem of state transition for these states transition,we have designed a state transition management interface based on WSRF to manage state transition of the stateful resources are designed.Then an example of a serial port communication is given to specify the state transition interface in the end of this paper.