jdbc连接MySQL

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
public class DbUtil {
  private String dbUrl="jdbc:mysql://127.0.0.1:3306/studentlus?serverTimezone=UTC&useSSL=false"; // 数据库连接地址
  private String dbUserName="root"; // 用户名
  private String dbPassword="123456"; // 密码
  private String jdbcName="com.mysql.cj.jdbc.Driver"; // 驱动名称
  /**
   * 获取数据库连接
   * @return
   * @throws Exception
   */
  public Connection getCon(){
    try {
      Class.forName(jdbcName);
    } catch (ClassNotFoundException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    Connection con = null;
    try {
      con = DriverManager.getConnection(dbUrl, dbUserName, dbPassword);
    } catch (SQLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    return con;
  }
  /**
   * 关闭数据库连接
   * @param con
   * @throws Exception
   */
  public void closeCon(Connection con)throws Exception{
    if(con!=null){
      con.close();
    }
  }
  public static void main(String[] args) {
    DbUtil dbUtil=new DbUtil();
    try {
      dbUtil.getCon();
      System.out.println("数据库连接成功！");
    } catch (Exception e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
      System.out.println("数据库连接失败");
    }
  }
}