NoMethodError: #<Array: 的未定义方法 `bytesize'答案

【问题标题】：NoMethodError: undefined method `bytesize' for #<Array:NoMethodError: #<Array: 的未定义方法 `bytesize'
【发布时间】：2012-08-21 06:25:45
【问题描述】：

我正在尝试调用我的自定义 api，它使用回形针上传文件，它在本地使用 https://github.com/jwagener/httmultiparty 工作正常，但是当我尝试调用 api 并为 heroku 部署的应用程序上传文件时，会发生以下错误。

NoMethodError: undefined method `bytesize' for #<Array:0x00000006e71980>
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:1735:in `send_request_with_body'
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:1724:in `exec'
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:1189:in `transport_request'
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:1177:in `request'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/rest-client-1.6.7/lib/restclient/net_http_ext.rb:51:in `request'
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:1170:in `block in request'
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:627:in `start'
    from /home/umair/.rvm/rubies/ruby-1.9.2-p320/lib/ruby/1.9.1/net/http.rb:1168:in `request'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/rest-client-1.6.7/lib/restclient/net_http_ext.rb:51:in `request'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/httparty-0.8.3/lib/httparty/request.rb:76:in `perform'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/httparty-0.8.3/lib/httparty/request.rb:208:in `handle_response'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/httparty-0.8.3/lib/httparty/request.rb:90:in `perform'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/httparty-0.8.3/lib/httparty.rb:400:in `perform_request'
    from /home/umair/Projects/core/lib/httmultiparty.rb:81:in `post'
    from (irb):5
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/railties-3.0.7/lib/rails/commands/console.rb:44:in `start'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/railties-3.0.7/lib/rails/commands/console.rb:8:in `start'
    from /home/umair/.rvm/gems/ruby-1.9.2-p320@gm/gems/railties-3.0.7/lib/rails/commands.rb:23:in `<top (required)>'

我在 ruby 控制台上运行它来测试文件上传 api。

HttpClient.post('/storage.xml',:basic_auth=>   {:username=>'badde88248834bec759d94563f102d52e19702fa',:password=>'b890b48e2769192372bf531fc46827cd86bea23f'} ,:query => {:auth_token=> '1045aa26cda23f5f3aec737a45e7ba0017c1a7cf',:user_file => File.new( '/home/umair/Login.png')})

【问题讨论】：

标签： ruby-on-rails ruby-on-rails-3 file-upload heroku

【解决方案1】：

我遇到了同样的问题，但找不到解决方案。现在我正在这样做，它只需要multipart-post gem。

class Client
  require 'net/http/post/multipart'

  def self.perform inputurl, file
    url = URI.parse(inputurl)
    File.open(file) do |transfile|
      Net::HTTP.start(url.host, url.port) do |http|
        req = Net::HTTP::Post::Multipart.new(
          url.path,
          file1: UploadIO.new(transfile, "multipart/formdata", File.basename(file)),
        )
        response = http.request(req)
      end
    end
  end
end

【讨论】：