org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.IllegalStateException: Already value [org.springframework.jdbc.datasource.ConnectionHolder@67914efe] for key [HikariDataSource (HikariPool-1)] bound to thread [http-nio-8081-exec-2]
求大佬给解决一下
设置一个异常回滚