diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index a49126a6c..9d22f207a 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -290,14 +290,11 @@ class CoursesController < ApplicationController
   def export_course_member_excel
     @all_members = student_homework_score(0,0,0,"desc")
     filename="#{@course.teacher.lastname.to_s + @course.teacher.firstname.to_s }_#{@course.name}_#{@course.time.to_s + @course.term}#{l(:excel_member_list)}";
-    # 如果是ie 需要转码
-    if(/trident/.match(request.env["HTTP_USER_AGENT"]) != nil)
-      filename= URI::encode(filename)
-    end
+   
     respond_to do |format|
       format.xls {
         send_data(member_to_xls(@all_members,@course.course_groups), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "#{filename}.xls")
+                  :filename => filename_for_content_disposition("#{filename}.xls"))
       }
     end
   end
diff --git a/app/controllers/gantts_controller.rb b/app/controllers/gantts_controller.rb
index ee132ac29..710bb2f47 100644
--- a/app/controllers/gantts_controller.rb
+++ b/app/controllers/gantts_controller.rb
@@ -42,8 +42,8 @@ class GanttsController < ApplicationController
 
     respond_to do |format|
       format.html { render :action => "show", :layout => 'base_projects' }#by young
-      format.png  { send_data(@gantt.to_image, :disposition => 'inline', :type => 'image/png', :filename => "#{basename}.png") } if @gantt.respond_to?('to_image')
-      format.pdf  { send_data(@gantt.to_pdf, :type => 'application/pdf', :filename => "#{basename}.pdf") }
+      format.png  { send_data(@gantt.to_image, :disposition => 'inline', :type => 'image/png', :filename => filename_for_content_disposition("#{basename}.png")) } if @gantt.respond_to?('to_image')
+      format.pdf  { send_data(@gantt.to_pdf, :type => 'application/pdf', :filename => filename_for_content_disposition("#{basename}.pdf") ) }
     end
   end
 end
diff --git a/app/controllers/homework_attach_controller.rb b/app/controllers/homework_attach_controller.rb
index 5dd5363b9..93459578c 100644
--- a/app/controllers/homework_attach_controller.rb
+++ b/app/controllers/homework_attach_controller.rb
@@ -33,7 +33,7 @@ class HomeworkAttachController < ApplicationController
       format.js
       format.xls {
         send_data(homework_to_xls(@all_homework_list), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}(#{l(:excel_not_rated)}).xls")
+                  :filename => filename_for_content_disposition("#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}(#{l(:excel_not_rated)}).xls") )
       }
     end
   end
@@ -66,7 +66,7 @@ class HomeworkAttachController < ApplicationController
       format.js
       format.xls {
         send_data(homework_to_xls(all_homework_list), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}(#{l(:excel_been_rated)}).xls")
+                  :filename => filename_for_content_disposition("#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}(#{l(:excel_been_rated)}).xls") )
       }
     end
   end
@@ -101,7 +101,7 @@ class HomeworkAttachController < ApplicationController
       format.js
       format.xls {
         send_data(homework_to_xls(all_homework_list), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}.xls")
+                  :filename => filename_for_content_disposition("#{@course.teacher.lastname.to_s + @course.teacher.firstname}_#{@course.name}_#{@course.time.to_s + @course.term}_#{@bid.name}#{l(:excel_homework_list)}.xls") )
       }
     end
   end
diff --git a/app/controllers/issues_controller.rb b/app/controllers/issues_controller.rb
index 923414583..e529dd3b9 100644
--- a/app/controllers/issues_controller.rb
+++ b/app/controllers/issues_controller.rb
@@ -151,7 +151,7 @@ class IssuesController < ApplicationController
     format.atom { render :template => 'journals/index', :layout => false, :content_type => 'application/atom+xml' }
     format.pdf  {
       pdf = issue_to_pdf(@issue, :journals => @journals)
-      send_data(pdf, :type => 'application/pdf', :filename => "#{@project.identifier}-#{@issue.id}.pdf")
+      send_data(pdf, :type => 'application/pdf', :filename => filename_for_content_disposition("#{@project.identifier}-#{@issue.id}.pdf") )
     }
     end
   end
diff --git a/app/controllers/poll_controller.rb b/app/controllers/poll_controller.rb
index a8f2a11f1..ec54ae8a4 100644
--- a/app/controllers/poll_controller.rb
+++ b/app/controllers/poll_controller.rb
@@ -413,7 +413,7 @@ class PollController < ApplicationController
     respond_to do |format|
       format.xls {
         send_data(poll_to_xls(poll_questions), :type => "text/excel;charset=utf-8; header=present",
-                  :filename => "#{@poll.polls_name}.xls")
+                  :filename => filename_for_content_disposition("#{@poll.polls_name}.xls") )
       }
     end
   end
diff --git a/app/controllers/stores_controller.rb b/app/controllers/stores_controller.rb
index 85ea85241..0d1755294 100644
--- a/app/controllers/stores_controller.rb
+++ b/app/controllers/stores_controller.rb
@@ -84,7 +84,7 @@ class StoresController < ApplicationController
     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")
+                  :filename => filename_for_content_disposition("#{l(:label_file_lost_list)}.xls") )
       }
     end
   end
diff --git a/app/controllers/wiki_controller.rb b/app/controllers/wiki_controller.rb
index da6d48b8d..c0351c6da 100644
--- a/app/controllers/wiki_controller.rb
+++ b/app/controllers/wiki_controller.rb
@@ -82,14 +82,14 @@ class WikiController < ApplicationController
     @content = @page.content_for_version(params[:version])
     if User.current.allowed_to?(:export_wiki_pages, @project)
       if params[:format] == 'pdf'
-        send_data(wiki_page_to_pdf(@page, @project), :type => 'application/pdf', :filename => "#{@page.title}.pdf")
+        send_data(wiki_page_to_pdf(@page, @project), :type => 'application/pdf', :filename => filename_for_content_disposition("#{@page.title}.pdf") )
         return
       elsif params[:format] == 'html'
         export = render_to_string :action => 'export', :layout => false
-        send_data(export, :type => 'text/html', :filename => "#{@page.title}.html")
+        send_data(export, :type => 'text/html', :filename => filename_for_content_disposition("#{@page.title}.html"))
         return
       elsif params[:format] == 'txt'
-        send_data(@content.text, :type => 'text/plain', :filename => "#{@page.title}.txt")
+        send_data(@content.text, :type => 'text/plain', :filename => filename_for_content_disposition("#{@page.title}.txt") )
         return
       end
     end
@@ -286,7 +286,7 @@ class WikiController < ApplicationController
         send_data(export, :type => 'text/html', :filename => "wiki.html")
       }
       format.pdf {
-        send_data(wiki_pages_to_pdf(@pages, @project), :type => 'application/pdf', :filename => "#{@project.identifier}.pdf")
+        send_data(wiki_pages_to_pdf(@pages, @project), :type => 'application/pdf', :filename => filename_for_content_disposition("#{@project.identifier}.pdf") )
       }
     end
   end