Debugged a morning JavaScript code, what results are not! It's a depressed ... When you remember the last manager, you have questions about the Try {} catch () location (involving the Hibernate transaction) Problem), because he is not familiar with Hibernate, I will tell me that I understand, the manager is also half-sin. Sripes I open hibernate source code (this is the benefits of open source software), find sessionImpl.java Source code, halo, 4060 line code, I am complaining about Gavin King ... Take a closer look, I found that session closing is not what I understand, I thought I thought it would be closed. The status of the PO is synchronized into the database, avoiding expiration data, in fact, only the type () method is only cleaned, closed the connection, etc. Write the code, run, the result is a look, sweating ~~~ call manager, explain the result, the manager is not blaming, smile and say: I said so many reasons, I thought ... ....... Khan ~~~~ Don't blame me, I am not afraid, I am a rookie, I am afraid? Haha is good, go home, tomorrow to study Workflow, all English documents, really halo ~~~ Said back, as long as you don't engage in javascript, haha