org.hibernate.exception.SQLGrammarException：无法准备语句— Spring ROO

Question

I'm Building and web App using the Spring Roo Tool. and while creating my classes via the roo shell console, I've used several times the option -permitReservedWords to create some classes (eg Role, Group and User).

After generating the CRUD Views, I get this exception :

"org.hibernate.exception.SQLGrammarException: could not prepare statement"

Then I realized that the problem occurs only for entities with reserved Names, so How can I force these entities name, if it's not possible how can I edit the names, because the refactor option in eclipse doesn't solve the problem, especial with a lot of AspectJ Files in the projects ...

Answer 1

Note the JPA default table name is the name of the class (minus the package) with the first letter capitalized, this is why you need -permitReservedWords . Your entities User , Role , etc by default will be stored in User , Role , etc tables that are reserved words in almost all databases.

To change the default behaviour, use the annotation "@Table(name="app_user")" (javax.persistence.Table) to specify/customize the database table name that stores the data of given Entity. For example, User entity could be stored in uzer table.