Atitit. Improved stability --- added the retry Mechanism in hibernate to solve database connection Shutdown

Atitit. Improved stability --- added the retry Mechanism in hibernate to solve database connection Shutdown

Atitit. Improved stability --- added the retry Mechanism in hibernate to solve database connection Shutdown

1. Process summary

Retry (5 times). invoke (xxx). test (). rest (). $ () throw OvertimeEX

Retry (5 times): throw OvertimeEX

Caller () // call the original api

Tester (): // return T/f

Reset () /// Reset the device

End ::

Tester ()

Command Case1 OK, return T

Case2 fail, returns F,> retry

Case3 ex, return F >>> retry

Author: old wow's paw Attilax iron, EMAIL: 1466519819@qq.com

Reprinted please indicate Source: http://blog.csdn.net/attilax

2. class

Deprecated

Public abstract class retry

This trojan reset method

3. retryO7 with reset Method

Public static Session getSession (){

// Attilax old wow's paw i4148 o78

// For log rzt detail msg... normal use not neccesry...

RetryRzt rzt = new retryRzt ();

Return new retryO7 (5, rzt ){

@ Override

Public Boolean item (Object t) throws Exception {

// Attilax old wow's paw 11:49:37 June 9, 2014

Final Session sess = getSessionOri ();

This. setResetObj (sess );

List li = sess. createQuery ("select 1"). list ();

// Core. ex4test ();

If (li. size ()> 0 ){

This. setResult (sess );

Return true;

}

Return false;

}

// Return null;

@ Override

Public void reset (final Object sessObj ){

Core. log ("--- o79: conn is close, now startclose session ..");

Session sess = (Session) sessObj;

Sess. close ();

}

}. $ O69 ();

}

4. getSessionOri

Public static Session getSessionOri () throws HibernateException {

Session session = (Session) threadLocal. get ();

If (session = null |! Session. isOpen ()){

If (sessionFactory = null ){

RebuildSessionFactory ();

}

Session = (sessionFactory! = Null )? SessionFactory. openSession ()

: Null;

ThreadLocal. set (session );

}

Return session;

}