学生网上选课系统，支持注册 ，支持登录，添加信息，基于java，jsp，HTML(Students online course selection system, support registration, support login, add information, based on Java, JSP, HTML)

java JSP所实现的用户登录界面，连接数据库后可以实现增删改查功能(User login interface implemented by Java JSP)