diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index e6240714..535a75b6 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -319,7 +319,6 @@ class ApplicationController < ActionController::Base
       end
       # Token.delete_all(["user_id = ? AND action = ?", User.current.id, 'autologin'])
       self.logged_user = nil
-      session[:third_party_user_id] = nil
     end
   end
 
diff --git a/app/services/cnmoocs_service.rb b/app/services/cnmoocs_service.rb
index 6de07203..fa6e67ea 100644
--- a/app/services/cnmoocs_service.rb
+++ b/app/services/cnmoocs_service.rb
@@ -116,6 +116,7 @@ class CnmoocsService
 
   def source_url(params)
     user = User.find_by_id(params[:userId])
+    return {error: -1, messages: "用户不存在，请先创建用户"} unless user
     token = Token.get_or_create_permanent_login_token(user)
     shixun = Shixun.find_by_id(params[:resouceId])
     if shixun.blank?