@CacheEvict(value = "signonCache", key = "'petstore:signon:'+#user.username")
public void update(@Valid Signon user) {
dao.update(user);
}
@Cacheable(value = "signonCache", key = "'petstore:signon:'+#username", unless = "#result==null")
public Signon findByName(String username) {
// return
// dsl.selectFrom(SIGNON).where(SIGNON.USERNAME.eq(username)).fetchOne().into(Signon.class);
return dao.fetchOneByUsername(username);
}