diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 899997456..e3a804ef8 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -33,7 +33,7 @@ class ProjectsController < ApplicationController
   menu_item l(:label_course_news), :only => :index
   
 
-  before_filter :find_project, :except => [ :index, :search,:list, :new, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise,:view_homework_attaches]
+  before_filter :find_project, :except => [ :index, :search,:list, :new, :create, :copy, :statistics, :new_join, :course, :enterprise_course, :course_enterprise,:view_homework_attaches,:join_project]
   # before_filter :authorize, :except => [:new_join, :new_homework, :homework, :statistics, :search, :watcherlist, :index, :list, :new, :create, :copy, :archive, :unarchive, :destroy, :member, :focus, :file, 
   #               :statistics, :feedback, :course, :enterprise_course, :course_enterprise, :project_respond, :share,
   #               :show_projects_score, :issue_score_index, :news_score_index, :file_score_index, :code_submit_score_index, :projects_topic_score_index]
@@ -910,6 +910,14 @@ class ProjectsController < ApplicationController
       end
     end
   end
+
+  #加入私有项目
+  def join_project
+    respond_to do |format|
+      format.js
+    end
+  end
+
   private
 
   def memberAccess