Question pour hibrenate

Hello :
i would like you to help me if you do not like i am a cotre training on the spring and hibrenate framework and i have a problem that i can not solve: the exeption is org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.GenericJDBCException: Unable to acquire JDBC Connection

The problem is described by the nested exception Unable to acquire JDBC Connection. This could ultimately mean a few things

  1. The configuration for your database connection is incorrect.
  2. The connection pool you’re using is unable to acquire a new connection, could be due to #1.