Network Virtual Laboratory Platform Design And Implementation Based On J2EE Construction

The network virtual laboratory integrates various kinds of virtual experiments of the same class together under the environment of network, and merges with every corresponding experiment teaching links (such as the experiment previewed, experiment examining, experiment report, etc.). The network virtual laboratory platform is to establish and manage the public resources and the tools of "network virtual laboratory". It is a open and integrated virtual laboratory shared platform, is one that collects virtual experiment and virtual laboratory management, experiment teaching, experiment editor, cooperating on the net, teaching organization's management in the integration networked experiment teaching platform.This subject explains the designed object, the overall frame, the designs and realizing of main function module of the network virtual laboratory platform that author develops. The platform adopts technology system of J2EE, designs and realizes especially various kinds of generality functions that have nothing to do with concrete virtual experiment, such as experiment teaching activity and organization, organization and management of the experiment educational administration, laboratory report and exam etc. In order to make the system framework hiberarchy clear, improve system reusable, maintainability and expansibility, we have merged many kinds of Java design pattern and J2EE core pattern while develop and design in the platform.