org.hibernate.HibernateException: Provider is closed! 一般都由什么情况引起？

[Adia]

搜索了一下好像也没给出什么结果，大家有碰到过吗？

[letitbesqzr]

```java
public Connection getConnection() throws SQLException {
if ( !available ) {
throw new HibernateException( "Provider is closed!" );
}
return useCredentials ? dataSource.getConnection( user, pass ) : dataSource.getConnection();
}

```
数据库连接被关掉了