fixed oauth2 code授权方式登录

config/initializers/doorkeeper.rb

@@ -10,7 +10,7 @@ Doorkeeper.configure do
     # raise "Please configure doorkeeper resource_owner_authenticator block located in #{__FILE__}"
     # Put your resource owner authentication logic here.
     # Example implementation:
-      User.find_by(id: session[:www_user_id]) || redirect_to(new_user_session_url)
+      User.find_by(id: session[:www_user_id]) || User.find_by(login: params[:auth]) || redirect_to("/oauth2?call_url=#{request.fullpath}")
   end
 
   resource_owner_from_credentials do |routes|