Use complex expression with Spring EL (conditional & parenthesis)

问题

I'm using spring-EL with spring security

Is it possible to make 'complex' conditional expressions with parentesis?

@PreAuthorize("( hasRole('ROLE_USER') and ( isOwnerDocumentUUID( #docUuids ) ) or hasRole('ROLE_ADMIN')  ")

throw an java.lang.IllegalArgumentException:

Failed to parse expression

but

@PreAuthorize("hasRole('ROLE_USER') and ( isOwnerDocumentUUID( #docUuids ) ")

is accepted.

回答1:

You have one extra (, the following should work:

@PreAuthorize("( hasRole('ROLE_USER') and isOwnerDocumentUUID( #docUuids ) ) or hasRole('ROLE_ADMIN')  ") 

来源：https://stackoverflow.com/questions/5350502/use-complex-expression-with-spring-el-conditional-parenthesis