diff --git a/app/controllers/stores_controller.rb b/app/controllers/stores_controller.rb
index b1705c826..85ea85241 100644
--- a/app/controllers/stores_controller.rb
+++ b/app/controllers/stores_controller.rb
@@ -72,6 +72,22 @@ class StoresController < ApplicationController
                l(:label_borad_project), #l(:label_contest_innovate),
                l(:label_forum) ]
   end
+
+  #缺失文件列表
+  def lost_file
+    attachments = []
+    Attachment.where("container_id is not null and container_type is not null and container_type <> 'Bid' and container_type <> 'HomeworkAttach'").each do |attachment|
+      unless File.exist?(attachment.diskfile)
+        attachments << attachment
+      end
+    end
+    respond_to do |format|
+      format.xls {
+        send_data(homework_to_xls(attachments), :type => "text/excel;charset=utf-8; header=present",
+                  :filename => "#{l(:label_file_lost_list)}.xls")
+      }
+    end
+  end
   
   private
 
@@ -117,4 +133,27 @@ class StoresController < ApplicationController
     else
     end
   end
+
+  #作品列表转换为excel
+  def homework_to_xls attachments
+    xls_report = StringIO.new
+    book = Spreadsheet::Workbook.new
+    sheet1 = book.create_worksheet :name => "homework"
+    blue = Spreadsheet::Format.new :color => :blue, :weight => :bold, :size => 10
+    sheet1.row(0).default_format = blue
+    sheet1.row(0).concat(["文件ID","文件名","硬盘路径","上传时间","是否公开","所属对象","所属对象Id"])
+    count_row = 1
+    attachments.each do |attachment|
+      sheet1[count_row,0] = attachment.id
+      sheet1[count_row,1] = attachment.filename
+      sheet1[count_row,2] = attachment.diskfile
+      sheet1[count_row,3] = format_time(attachment.created_on)
+      sheet1[count_row,4] = (attachment.is_public == 1 || attachment.is_public) ? "是" :"否"
+      sheet1[count_row,5] = attachment.container_type
+      sheet1[count_row,6] = attachment.container_id
+      count_row += 1
+    end
+    book.write xls_report
+    xls_report.string
+  end
 end
diff --git a/app/views/stores/_search_bar.html.erb b/app/views/stores/_search_bar.html.erb
index e4dea7a02..8a7481aa6 100644
--- a/app/views/stores/_search_bar.html.erb
+++ b/app/views/stores/_search_bar.html.erb
@@ -1,8 +1,9 @@
-<div style="width: 57%;margin: 10px auto;">
+<div style="width: 67%;margin: 10px auto;">
 	<%= form_tag( search_stores_path, method: 'post') do %>
 	<%= text_field_tag 'name', params[:name], placeholder: l('welcome.search.information'), name: "name", :class => 'blueinputbar', :style => 'width:450px;'%>
 	&nbsp;&nbsp;
-	<%= submit_tag l(:label_search), :class => "enterprise"%>
+	<%= submit_tag l(:label_search), :class => "enterprise "%>
 	<% end %>
+    <%= link_to("导出缺失列表",lost_file_stores_path(:format => 'xls'),:style => "background-color: #15bccf;padding: 4px 5px;color: white;") if User.current.admin?%>
 	<div class='font_lighter' style="display: inline-block; margin-top:3px;"><%= l(:label_resources_search_all)%></div>
 </div>
\ No newline at end of file
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index 1aab2a22c..4306b51c8 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -2023,5 +2023,7 @@ zh:
   label_evaluation_common: 匿评评语
   label_evaluation_time: 匿评时间
 
+  label_file_lost_list: 缺失文件列表
+
 
 
diff --git a/config/routes.rb b/config/routes.rb
index dea176f54..0132b8fc6 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -192,6 +192,7 @@ RedmineApp::Application.routes.draw do
   resources :stores do
     collection do
       match 'search', :via =>  [:get, :post]
+      get 'lost_file'
     end
   end