JDBC基本步骤

public class DBUtil {
    public static void main(String[] args) {

        String url = "jdbc:MysqL://127.0.0.1:3306/test";                //数据库url
        String userName = "root";                                       //数据库用户名
        String password = "123456";                                     //数据库密码

        Connection connection = null;
        Statement statement = null;
        try {
            //1.加载驱动
            Class.forName("com.MysqL.jdbc.Driver");
            //2.获取连接
            connection = DriverManager.getConnection(url, userName, password);
            //3.创建statement语句
            statement = connection.createStatement();
            //4.执行查询
            String sqlGirlInfo = "select * from girlinfo";
            ResultSet rs = statement.executeQuery(sqlGirlInfo);
            //5.对执行结果进行处理
            while(rs.next()){
                System.out.println(rs.getString("user_name") + "-" +rs.getInt("age"));
            }

        }catch (Exception e){

        }finally {
            //6.最终关闭资源
            try {
                if(connection!=null){
                    connection.close();
                }
                statement.close();
            } catch (sqlException e) {
                e.printstacktrace();
            }
        }
    }
}