java.sql.SQLException: IO 예외 상황: NL Exception was generated
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:255)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:387)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:441)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:165)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:35)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:801)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at TestSqlNet.connect(TestSqlNet.java:32)
at TestSqlNet.test(TestSqlNet.java:68)
at TestSqlNet.main(TestSqlNet.java:79)
java.lang.NullPointerException
at TestSqlNet.test(TestSqlNet.java:69)
at TestSqlNet.main(TestSqlNet.java:79)
==> JDBC URL 문법이 잘못 되어 있거나 "(" 또는 ")" 괄호 의 갯수를 확인 해 보도록 한다.
필자의 경우는 "jdbc:oracle:thin:@((DESCRIPTION=" 에서 처럼 DECRIPTION 앞에 시작괄호를 하나 더 넣어서 문제가 되었다.
아래 예제는 올바른 경우다.
String url = "jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=ON)"
+ "(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.105)(PORT=1521))"
+ "(ADDRESS=(PROTOCOL=TCP)(HOST=190.168.1.107)(PORT=1521))"
+ "(CONNECT_DATA=(SERVICE_NAME=RACDB)))";
