mysql数据库如何进去

mysql -u root -p

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Your MySQL connection id is 12345
Server version: 8.0.23 MySQL Community Server - GPL

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mysql>

import mysql.connector

mydb = mysql.connector.connect(
  host="localhost",
  user="yourusername",
  password="yourpassword"
)

print(mydb)

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class MySQLConnection {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/";
        String user = "yourusername";
        String password = "yourpassword";

        try {
            Connection conn = DriverManager.getConnection(url, user, password);
            System.out.println("Connected to the database!");
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}