通过com.mysql.cj.jdbc.Driver来实现操作MYSQL数据库:

package database;import java.sql.Connection;import java.sql.DriverManager;import java.sql.ResultSet;import java.sql.SQLException;import java.sql.Statement;public class Database {    public static void main(String[] args) {        //声明Connection对象        Connection con;        //驱动程序名        String driver = "com.mysql.cj.jdbc.Driver";        //URL指向要访问的数据库名mydata        String url = "jdbc:mysql://localhost:3306/test?serverTimezone=GMT%2B8";        //MySQL配置时的用户名        String user = "root";        //MySQL配置时的密码        String password = "";        //遍历查询结果集        try {            //加载驱动程序            Class.forName(driver);            //1.getConnection()方法，连接MySQL数据库！！            con = DriverManager.getConnection(url,user,password);            if(!con.isClosed())                System.out.println("Succeeded connecting to the Database!");            //2.创建statement类对象，用来执行SQL语句！！            Statement statement = con.createStatement();            //要执行的SQL语句            String sql = "select * from user";            //3.ResultSet类，用来存放获取的结果集！！            ResultSet rs = statement.executeQuery(sql);            System.out.println("-----------------");            System.out.println("执行结果如下所示:");              System.out.println("-----------------");              System.out.println("时间" + "\t" + "用户名");              System.out.println("-----------------");                           String user_name = null;            String time = null;            while(rs.next()){                //获取stuname这列数据                user_name = rs.getString("user_name");                //获取stuid这列数据                time = rs.getString("time");                //输出结果                System.out.println(time + "\t" + user_name);            }            rs.close();            con.close();        } catch(ClassNotFoundException e) {               //数据库驱动类异常处理            System.out.println("Sorry,can`t find the Driver!");               e.printStackTrace();               } catch(SQLException e) {            //数据库连接失败异常处理            e.printStackTrace();              }catch (Exception e) {            // TODO: handle exception            e.printStackTrace();        }finally{            System.out.println("数据库数据成功获取！！");        }    }}