Use restful login form cas, but why can't I visit access code in the form of a restful, why call/oauth2 oauthorize, again call/oauth2 callbackAuthorize, but I use/oauth2 callbackAuthorize directly followed by parameters, restful access to ticket, I can't access, this process is specific is how he like, have a great spirit guide, really can not find on the net, website seems to have no specific instructions