Oracle 12c JDBC Connection PDB error problem

A classmate sent a message that the Oracle database uses a JDBC connection to report ora-12505 errors.

Subconsciously replied to see if the database Sid/service name in the JDBC connection string was incorrectly written.

The other side feedback said yes. Then let him connect in the following way is OK to connect:

Sqlplus Scott/[email PROTECTED]:1521/PDBORCL  

Then let him change the JDBC format to the following as shown below after the connection succeeds!

Connection conn = Drivermanager.getconnection ("Jdbc:oracle:thin: @localhost: 1521/pdborcl", "Scott", "Tiger");

　　

Because the ":" is followed by the SID, and the "/" is followed by the service_name. The way to connect using SIDS is already obsolete in 12C.

Oracle 12c JDBC Connection PDB error problem