https://velog.io/@dhleeone/PostgreSQL-Mac%EC%97%90%EC%84%9C-Homebrew%EB%A1%9C-PostgreSQL-%EC%84%A4%EC%B9%98%ED%95%98%EA%B8%B0
jdbc 오라클 연결성공!INFO : org.zerock.persistence.JDBCTests - oracle.jdbc.driver.T4CConnection@7d0587f1