mysql配置classpath

java -cp .:mysql-connector-java-8.0.23.jar YourMainClass

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

public class MySQLConnectionTest {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/your_database";
        String user = "your_username";
        String password = "your_password";

        try {
            // 加载MySQL JDBC驱动程序
            Class.forName("com.mysql.cj.jdbc.Driver");

            // 建立连接
            Connection connection = DriverManager.getConnection(url, user, password);
            System.out.println("Connected to MySQL database!");

            // 关闭连接
            connection.close();
        } catch (ClassNotFoundException e) {
            System.out.println("MySQL JDBC driver not found!");
            e.printStackTrace();
        } catch (SQLException e) {
            System.out.println("Failed to connect to MySQL database!");
            e.printStackTrace();
        }
    }
}