采用struts框架，MVC模式，在jbuilder开发工具下，开发的一个学生信息系统，内带Access数据库。-Using struts framework, MVC model jbuilder development tools, the development of a student information system, within the database with Access.

用友元关系定义一个学生的类和一个成绩的类，其中使得成绩类对象可以访问学生对象的私有数据，并编程测试。-UFIDA relation to define a category of students and a performance category, which makes performance category students can access the target object private data, and programming test.