JAvaベース-jdbc-ロードドライバによる接続の確立の3つの方法

 1 String url = "jdbc:mysql://localhost:3306/student?Unicode=true&characterEncoding=utf-8";

 2             Properties info = new Properties();

 3             info.put("user", "canon");

 4             info.put("password", "123456");

 5             

 6             /**

 7              *             

 8              */

 9             //  1

10             Driver driver = new com.mysql.jdbc.Driver();

11             Connection connection = driver.connect(url, info);

12             

13             /*

14             //  2

15             Driver driver = DriverManager.getDriver(url);

16             connection = driver.connect(url, info);

17             

18             //  3

19             Class.forName(url);

20             conn = DriverManager.getConnection(url, info);

21             */