org.hibernate.transaction.JDBCTransaction
Could not toggle autocommit
java.sql.SQLException: Closed Connection
org.hibernate.transaction.JDBCTransaction
JDBC commit failed
java.sql.SQLException: Io exception: Connection reset
org.springframework.transaction.TransactionSystemException: Could not commit Hibernate transaction; nested exception is org.hibernate.TransactionException: JDBC commit failed
求大神指导，Spring + Hibernate，隔一段时间会自动挂死，以上是相关异常
数据库是ORACLE的，以下是连接池配置信息
hibernate.c3p0.min_size=1
hibernate.c3p0.max_size=20
hibernate.c3p0.timeout=21600
hibernate.c3p0.max_statements=0
hibernate.c3p0.idle_test_period=1800
hibernate.c3p0.acquire_increment=2
hibernate.c3p0.checkoutTimeout=30000
