diff --git a/app/controllers/zipdown_controller.rb b/app/controllers/zipdown_controller.rb
index 12637e2fb..ac8a74379 100644
--- a/app/controllers/zipdown_controller.rb
+++ b/app/controllers/zipdown_controller.rb
@@ -7,17 +7,6 @@ class ZipdownController < ApplicationController
   SAVE_FOLDER = "#{Rails.root}/files"
   OUTPUT_FOLDER = "#{Rails.root}/tmp/archiveZip"
 
-  #通过作业Id找到项目（课程）
-  def find_project_by_bid_id
-    obj_class = params[:obj_class]
-    obj_id = params[:obj_id]
-    obj = obj_class.constantize.find(obj_id)
-    case obj.class.to_s.to_sym
-      when :Bid
-        @project = obj.courses[0]
-    end
-  end
-
   def assort
     if params[:obj_class] == "Bid"
       bid = Bid.find params[:obj_id]
@@ -33,8 +22,8 @@ class ZipdownController < ApplicationController
     end
     send_file zipfile, :filename => bid.name + ".zip", :type => detect_content_type(zipfile) if zipfile
 
-  rescue Exception => e
-    render file: 'public/no_file_found.html'
+  #rescue Exception => e
+  #  render file: 'public/no_file_found.html'
   end
 
   #下载某一学生的作业的所有文件
@@ -56,12 +45,23 @@ class ZipdownController < ApplicationController
     else
       render_403
     end
-  rescue => e
-    render file: 'public/file_not_found.html'
+  #rescue => e
+  #  render file: 'public/file_not_found.html'
   end
 
   private
 
+  #通过作业Id找到项目（课程）
+  def find_project_by_bid_id
+    obj_class = params[:obj_class]
+    obj_id = params[:obj_id]
+    obj = obj_class.constantize.find(obj_id)
+    case obj.class.to_s.to_sym
+      when :Bid
+        @project = obj.courses[0]
+    end
+  end
+
   def zip_bid(bid)
     # Todo: User Access Controll
     bid_homework_path = []
@@ -113,9 +113,9 @@ class ZipdownController < ApplicationController
       end
     end
     zipfile_name
-  rescue Errno => e
-    logger.error "[zipdown#zipping] ===> #{e}"
-    @error = e
+  #rescue Errno => e
+  #  logger.error "[zipdown#zipping] ===> #{e}"
+  #  @error = e
   end
   def detect_content_type(name)
     content_type = Redmine::MimeType.of(name)