java基础-jdbc——三种方式加载驱动建立连接

 String url = "jdbc:mysql://localhost:3306/student?Unicode=true&characterEncoding=utf-8";
             Properties info = new Properties();
             info.put("user", "canon");
             info.put("password", "123456");

             /**
              * 三种方式加载驱动建立连接
              */
             //方式1
             Driver driver = new com.mysql.jdbc.Driver();
             Connection connection = driver.connect(url, info);

             /*
             //方式2
             Driver driver = DriverManager.getDriver(url);
             connection = driver.connect(url, info);

             //方式3
             Class.forName(url);
             conn = DriverManager.getConnection(url, info);
             */