投票系统的源代码。投票系统分为普通用户访问界面和管理员访问界面两部分。普通用户访问界面由index.jsp页面进入，不需要用户名和密码；管理员访问界面由login.jsp页面进入，管理员用户名是：admin，密码是：admin。-Voting system source code. Voting system is divided into ordinary user access interface and the administrator access the interface of two parts. Common user access interface from the index.jsp page entry, do not need a user name and password　administrator access interface by entering the login.jsp page, the administrator user name is: admin, password is: admin.