diff --git a/app/api/mobile/apis/courses.rb b/app/api/mobile/apis/courses.rb
index 8f8c08c3f..7dbfaffb0 100644
--- a/app/api/mobile/apis/courses.rb
+++ b/app/api/mobile/apis/courses.rb
@@ -209,6 +209,16 @@ module Mobile
           present :status, 0
         end
 
+        desc '课程动态'
+        params do
+          requires :token, type: String
+        end
+        get "course_dynamic/:id" do
+          cs = CoursesService.new
+          count = cs.course_dynamic(params,current_user)
+          present :data, count, with: Mobile::Entities::CourseDynamic
+          present :status, 0
+        end
 
       end
     end
diff --git a/app/api/mobile/apis/users.rb b/app/api/mobile/apis/users.rb
index 69260716e..d780b9db4 100644
--- a/app/api/mobile/apis/users.rb
+++ b/app/api/mobile/apis/users.rb
@@ -22,13 +22,15 @@ module Mobile
 
         desc "显示用户"
         params do
-
+          requires :id, type: Integer
         end
-        get ':id' do
-          us = UsersService.new
-          ue = us.show_user params
-          present :data, ue,with: Mobile::Entities::User
-          present :status, 0
+        route_param :id do
+          get do
+            us = UsersService.new
+            ue = us.show_user params
+            present :data, ue,with: Mobile::Entities::User
+            present :status, 0
+          end
         end
 
         desc "修改用户"
@@ -77,11 +79,11 @@ module Mobile
           present :status, 0
         end
 
-        desc "用户搜索" 
+        desc "用户搜索"
         params do
           requires :name, type: String, desc: '用户名关键字'
         end
-        get 'search' do
+        get 'search/search_user' do
           us = UsersService.new
           user = us.search_user params
           present :data, user, with: Mobile::Entities::User
diff --git a/app/api/mobile/entities/course_dynamic.rb b/app/api/mobile/entities/course_dynamic.rb
new file mode 100644
index 000000000..11f8c2682
--- /dev/null
+++ b/app/api/mobile/entities/course_dynamic.rb
@@ -0,0 +1,17 @@
+module Mobile
+  module Entities
+    class CourseDynamic < Grape::Entity
+      def self.course_dynamic_expose(field)
+        expose field do |c,opt|
+          c[field] if (c.is_a?(Hash) && c.key?(field))
+        end
+      end
+
+      course_dynamic_expose :course_name
+      course_dynamic_expose :need_anonymous_comments_count
+      course_dynamic_expose :student_commit_number
+      course_dynamic_expose :news_count
+      course_dynamic_expose :message_count
+    end
+  end
+end
\ No newline at end of file
diff --git a/app/helpers/api_helper.rb b/app/helpers/api_helper.rb
index b227a96ab..c865a500b 100644
--- a/app/helpers/api_helper.rb
+++ b/app/helpers/api_helper.rb
@@ -44,8 +44,7 @@ module ApiHelper
   #param: user => "用户", course_id => "查询的课程ID"
   #return: 作业的数量
   #########################################################
-  def get_course_anonymous_evaluation user,course_id
-    course = Course.find course_id
+  def get_course_anonymous_evaluation user,course
     count = 0
     if course
       is_teacher = is_course_teacher user,course
@@ -59,6 +58,6 @@ module ApiHelper
         end
       end
     end
-    count
+    [count,is_teacher]
   end
 end
\ No newline at end of file
diff --git a/app/services/courses_service.rb b/app/services/courses_service.rb
index 341ecd422..f4201774a 100644
--- a/app/services/courses_service.rb
+++ b/app/services/courses_service.rb
@@ -2,6 +2,7 @@ class CoursesService
   include ApplicationHelper
   include CoursesHelper
   include HomeworkAttachHelper
+  include ApiHelper
   #TODO:尚未整合权限系统
   #参数school_id为0或不传时返回所有课程，否则返回对应学校的课程
   #参数per_page_count分页功能，每页显示的课程数
@@ -326,6 +327,22 @@ class CoursesService
     end
   end
 
+  def course_dynamic(params,current_user)
+    course = Course.find(params[:id])
+    if current_user.nil? || !(current_user.admin? || course.is_public == 1 || (course.is_public == 0 && current_user.member_of_course?(course)))
+      raise '403'
+    end
+    count,is_teacher = get_course_anonymous_evaluation current_user,course
+    if is_teacher
+      student_commit_number = count
+    else
+      need_anonymous_comments_count = count
+    end
+    news_count = course.news.count
+    message_count = course.journals_for_messages.count
+    {:course_name => course.name,:need_anonymous_comments_count=>need_anonymous_comments_count,:student_commit_number=>student_commit_number,:news_count=> news_count,:message_count=>message_count}
+  end
+
   private
   def show_homework_info course,bid,current_user,is_course_teacher
     author = bid.author.lastname + bid.author.firstname
@@ -361,4 +378,6 @@ class CoursesService
      :description => description, :homework_state => state,:open_anonymous_evaluation => open_anonymous_evaluation}
   end
 
+
+
 end
\ No newline at end of file