org.springframework.security.oauth2.provider
接口 
ClientDetails
ClientDetailsService
ClientRegistrationService
OAuth2RequestFactory
OAuth2RequestValidator
SaltedClientSecret
TokenGranter
 
AuthorizationRequest
BaseClientDetails
BaseClientDetails.ArrayOrStringDeserializer
CompositeTokenGranter
DefaultOAuth2RequestFactory
DefaultOAuth2RequestValidator
InMemoryClientDetailsService
JdbcClientDetailsService
OAuth2Authentication
OAuth2Request
TokenRequest
异常 
ClientAlreadyExistsException
ClientRegistrationException
NoSuchClientException