Why my DB will be cleaned up everytime I restart the Web App Server?

**mikeshi** · May 14th, 2011, 10:31 PM

My DB is MySQL, everytime I run

Code:

mvn jetty:run

, And the DB will be cleaned up, all data are gone.

Who could please tell me how to setup to avoid it?

**mikeshi** · May 14th, 2011, 10:44 PM

I think they are deleted because of the auto generated unit tests.

**mikeshi** · May 14th, 2011, 11:42 PM

I am wrong, not because of the Unit Tests. The data are cleaned even I run as

Code:

mvn jetty:run -DskipTests=true

Who can tell me how to avoid the data are cleaned?

**mikeshi** · May 15th, 2011, 12:21 AM

Oh my God, even I deployed war file to the Tomcat instance, the DB will be cleaned up everytime I start the server. What's wrong?

**mikeshi** · May 15th, 2011, 01:41 AM

OK, I checked. This only happens if the provider is HIBERNATE, is that a bug?

**Alan Stewart** · May 15th, 2011, 02:33 AM

Change the hibernate.hbm2ddl.auto property in the persistence.xml to "update"

**mikeshi** · May 15th, 2011, 07:15 AM

Thank you very much! I am not familiar with Hibernate, it is my retribution. LOL

Thread: Why my DB will be cleaned up everytime I restart the Web App Server?