rails遍历某文件夹下所有目录文件上传到mongodb gridfs

相关gem包  gem 'mongo'
方法一：

task test_file: :environment do

file_path = "/Users/jamst/public/test"

      def traverse_dir(filepath)
        if File.directory?(filepath)
          puts "Dirs:" + filepath
          Dir.foreach(filepath) do |filename|
            if filename != "." and filename != ".."
              traverse_dir(filepath + "/" + filename)
            end
          end
        else
          file = File.open(filepath) 
          file_name = filepath[1..-1]
          ＃ 文件写入mongondb
          grid = $mongo.database.fs
          grid.upload_from_stream(file_name, file)
          ＃ key写入mysql
          @avatar = Avatar.new
          @avatar.attachment_file_name = file_name
          @avatar.attachment_content_type = file.content_type
          @avatar.save
          puts "Files:" + filepath
        end
      end
      traverse_dir(file_path)
end
 
 
改进方法二：
task test_file: :environment do
  root = Rails.root.join("public/test/").to_s
      Dir["#{root}**/*"].each do |f|
        file = File.open(f) 
        next if File.directory?(f)
        @avatar = Avatar.new
            grid = $mongo.database.fs
            file_name = f.sub(root,'')
            file_name = "jamst/customer_order/#{file_name}"
            grid.upload_from_stream(file_name, file)
            @avatar.attachment_file_name = file_name
            @avatar.attachment_content_type = ".jpg"
            @avatar.save
            puts "Files: #{file_name}" 
      end
end
 
方法三：rails的Find类提供了find方法
require  'find'
Find.find("/usr/local/src") do |filename|
    p filename
end

关于在rails中集成mongodb gridfs的调用看连接

https://github.com/jamst/mongo_image_demo

感谢大牛blog指导http://www.tuicool.com/articles/EnUnqeN