Exception: transaction not successfully started

Exception: org. hibernate. transactionexception: transaction not successfully started

Error code: service layer session = hibernateutils. getcurrentsession ();//.... database Operation Statement (called Dao layer) Transaction Tx = session. begintransaction (); Tx. commit (); Dao layer session = hibernateutils. getcurrentsession ();//.... database Operation statement transaction Tx = session. begintransaction (); Tx. commit ();

Exception details:

![](http://i2.51cto.com/images/blog/201811/01/b3a475128fe693546c7d8d34cefac421.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)

Check the analysis and find the cause:

Originally, I created two transaction objects in the same thread, which violates the isolation in the acid feature of the transaction.

Solution:

Remove the repeated transaction code at the DaO layer as follows: Transaction Tx = session. begintransaction (); Tx. Commit ();

Exception: transaction not successfully started