用J2EE的技术（JSP和Servlet）完成了一个具有Web-SSO的简单样例。样例包含一个身份认证的服务器和两个简单的Web应用，使得这两个 Web应用通过统一的身份认证服务来完成Web-SSO的功能-With J2EE technology (JSP and Servlet) completed a Web-SSO simple example. Sample contains an authentication server and two simple Web applications, making these two Web applications through a unified identity authentication service to perform the function of Web-SSO