系统出错(500): org.apache.jasper.JasperException: org.apache.jasper.JasperException: org.springframework.transaction.TransactionSystemException: Could not roll back Hibernate transaction; nested exception is org.hibernate.TransactionException: rollback failed
org.hibernate.TransactionException: rollback failedorg.hibernate.TransactionException: unable to rollback against JDBC connection
【SQL出错】Invalid state, the Connection object is closed. [显示]