问题
I am using a fresh install of STS 3.8.3 and I am unable to add the JPA facet to an EJB project:
If I try to create a JPA project, I cannot find that option:
I am certain these used to be available in STS. What did I miss?
回答1:
We removed those extensions from the default distribution because users reported severe issues (search for JPA Event Handler on SO). In order to avoid this we decided to remove those tools from the distribution and added them to the extension install, so that you can get them back into STS quite easily.
However, we can revisit that decision in the future, if those tools don't cause those issues anymore.
回答2:
Upon further investigation I discovered that the Eclipse Web Tools Platform at eclipse update site http://download.eclipse.org/webtools/repository/neon includes the following:
Why is this no longer configured in STS? That is really too bad and not a good decision in my opinion.
回答3:
Go to Help -> Install New Software -> in the work with drop down , choose one with "https://download.eclipse.org/releases/*".
In the result you will be able to see Database Development. Choose the database you wish to configure.
来源：https://stackoverflow.com/questions/42869652/spring-tools-suite-jpa-project-and-the-jpa-facet