diff --git a/app/controllers/system_messages_controller.rb b/app/controllers/system_messages_controller.rb
index 588e13c5e..ae49b58a8 100644
--- a/app/controllers/system_messages_controller.rb
+++ b/app/controllers/system_messages_controller.rb
@@ -42,7 +42,7 @@ class SystemMessagesController < ApplicationController
     @system_messages.user_id = User.current.id
     respond_to do |format|
       if @system_messages.save
-        format.html {redirect_to system_messages_url(@project)}
+        format.html {redirect_to user_message_path(User.current, :type => "system_message")}
         flash[:notice] = l(:notice_successful_message)
       end
     end
diff --git a/app/models/mailer.rb b/app/models/mailer.rb
index a25aff6bb..4fe2478d2 100644
--- a/app/models/mailer.rb
+++ b/app/models/mailer.rb
@@ -34,8 +34,10 @@ class Mailer < ActionMailer::Base
     end
     def method_missing(name, *args, &block)
       if Setting.delayjob_enabled? && Object.const_defined?('Delayed')
+        # with delayed_job
         @target.delay.send(name, *args, &block)
       else
+        # without delayed_job
         @target.send(name, *args, &block).deliver
       end
     end
diff --git a/config/routes.rb b/config/routes.rb
index 2a0e1a492..1df7b0d2f 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -265,7 +265,6 @@ RedmineApp::Application.routes.draw do
     collection do
       post 'create', :as => 'system_messages'
       get 'index', :as => 'index'
-      get 'show', :as => 'show'
     end
   end
   # match 'system_messages/index', to: 'system_messages#index', :via => :get, :as => 'system_messages'
diff --git a/lib/tasks/email.rake b/lib/tasks/email.rake
index f805d1382..5126d7a69 100644
--- a/lib/tasks/email.rake
+++ b/lib/tasks/email.rake
@@ -202,13 +202,5 @@ END_DESC
         Mailer.run.send_for_user_activities(user, Date.today, 1)
       end
     end
-
-    desc "send a message for Job deadline"
-    task :message => :environment do
-      users = User.where(mail_notification: 'day')
-      users.each do |user|
-        Mailer.run.send_for_user_activities(user, Date.today, 1)
-      end
-    end
   end
 end
diff --git a/lib/tasks/homework_endtime.rake b/lib/tasks/homework_endtime.rake
new file mode 100644
index 000000000..9c7f54d75
--- /dev/null
+++ b/lib/tasks/homework_endtime.rake
@@ -0,0 +1,16 @@
+#coding=utf-8
+
+namespace :homework_endtime do
+  desc "send a message for Job deadline"
+  task :message => :environment do
+    current_day = Date.today.day
+    homework_commons = HomeworkCommon.where("end_time >?",Date.today)
+    homework_commons.each do |homework_common|
+      if homework_common.end_time.day - Date.today.day < 2 && homework_common.end_time.year == Date.today.year
+        homework_common.course.student.each do |s|
+          homework_common.course_messages << CourseMessage.new(:user_id => s.student_id, :course_id => homework_common.course_id, :viewed => false, :status => true)
+        end
+      end
+    end
+  end
+end