[oracle] The Network Adapter could not establish the connection

Oracle listener등 모두 정상이고 Oracle연결시 아래와 같은 메세지가 나올때

IO 예외 상황: The Network Adapter could not establish the connection

연결 URL을 변경해준다.

기존 String url = 
"jdbc:oracle:thin:127.0.0.1:1521:ORCL";
 
변경 String url = 
"jdbc:oracle:thin:@(
    DESCRIPTION=(
        ADDRESS_LIST=(
            ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521)
        )
    )(
    CONNECT_DATA=(SERVICE_NAME=ORCL)(SERVER=DEDICATED)
    )
)";