오류
    private static final String DRIVER = "com.mysql.cj.jdbc.Driver";
    private static final String URL = "jdbc:mysql://localhost:3306/dokgol";
    private static final String UID = "dokgol";
    private static final String UPW = "1111";
   
결과

java.sql.SQLException: The server time zone value '´ëÇѹα¹ Ç¥ÁؽÃ' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

처리:
jdbc:mysql://localhost:3306/dokgol?serverTimezone=UTC