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This article mainly explains the "spring with jdbc to connect oracle errors how to do", the article explained the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in-depth, together to study and learn "spring to use jdbc to connect oracle errors how to do" it!

An error occurred when using jdbc to connect to oracle in spring:

ORA-12518, TNS:listener could not hand off client connection

Org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Cannot open connectionCaused by:org.hibernate.exception.GenericJDBCException: Cannot open connection at org.hibernate.exception.SQLStateConverter.handledNonSpecificException (SQLStateConverter.java:103) is generally due to: after the customer connects to the listener, the listener redirects the customer to the scheduler port, and these connections will be rejected due to operating system problems.

To solve this problem, simply add the line DIRECT_HANDOFF_TTC_LISTENER = OFF to the header of the LISTENER.ORA.

Add the sentence DIRECT_HANDOFF_TTC_LISTENER = OFF to the listener.ora file

Then restart the listening service

Lsnrctl stop

Lsnrctl start

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