BMP类型Entity Bean组件的开发与应用。

试验目的：通过对简单Bean管理实体Bean组件的编写，加深对EJB理论知识的理解，为更深层的EJB应用做准备。

试验任务：设计一个实体Bean，实现对数据库的查询。

-BMP Entity Bean component type development and application. Test Objective: Management Entity Bean by Bean components of a simple preparation to enhance the understanding of theoretical knowledge of EJB, the EJB application is deeper in preparation. Experimental task: design an entity Bean, a query to the database.