Database (Batch Things

Link object son generated statement SQL object any statement submitted to the database will be executed immediately

It's not convenient for us to do a few tricks.

We can turn it off automatically, and then open it again.

Con.setautocommit (false);//... OperationCon.commit ()//ExecutionCon.setautocommit (true);//re-open//.... If it goes wrong, you can go back to the past        Catch(Exception e) {Try{con.rollback ();//If there is a problem, call this statement before returning to the Operation            }            Catch(SQLException e) {} System.out.println (E.getmessage ()); System.out.println ("22"); }

Database (Batch Things