xhw79的专栏

        DAO是Data Access Object数据访问接口，数据访问：故名思义就是与数据库打交道。夹在业务逻辑与数据库资源中间。DAO的功能:　　1. DAO用来封装Data Source的..就比如,Connection conn = DAOFacotry.createConnection()..　　就可以把Driver. URL. username, passpword这一些放在

=============Student.java========== import java.sql.*; public class Student implements java.io.Serializable{ private String id; private String name; private Date birthday; public Student(){} public St