无法使用Java在MYSQL中插入数据

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class InsertDataExample {
    public static void main(String[] args) {
        // 数据库连接信息
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String username = "root";
        String password = "password";

        // SQL语句
        String sql = "INSERT INTO mytable (column1, column2) VALUES ('value1', 'value2')";

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

            // 建立数据库连接
            Connection connection = DriverManager.getConnection(url, username, password);

            // 创建Statement对象
            Statement statement = connection.createStatement();

            // 执行INSERT语句
            int rowsAffected = statement.executeUpdate(sql);
            System.out.println("插入成功，影响行数：" + rowsAffected);

            // 关闭连接和Statement对象
            statement.close();
            connection.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}