什么可能导致这个铁路ioerror封闭流？
我有一个rails应用程序，在开发模式下运行（带有sqlite数据库）。 该应用程序的目的是允许用户通过Java客户端上载文件。
如果用户想要上传文件夹，则会以递归方式上传其中的所有文件。 如果用户想要上传文件，则文件将正常上传。
这是我收到的错误：
IOError in UploadedFilesController#new closed stream 这是应用程序跟踪：
/usr/lib/ruby/1.8/tempfile.rb:167:in `close' /usr/lib/ruby/1.8/tempfile.rb:167:in `callback' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `call' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `method_added' app/controllers/uploaded_files_controller.rb:114 /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_without_new_constant_marking' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_file' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:202:in `load_file' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:94:in `require_or_load' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:248:in `load_missing_constant' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:453:in `const_missing' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:465:in `const_missing' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/inflector.rb:257:in `constantize' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/string/inflections.rb:148:in `constantize' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/routing.rb:1426:in `recognize' /var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:78:in `service' /var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:66 /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' /var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39
这是框架跟踪：
/usr/lib/ruby/1.8/tempfile.rb:167:in `close' /usr/lib/ruby/1.8/tempfile.rb:167:in `callback' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `call' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `method_added' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:170:in `handle_request' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in `dispatch' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in `dispatch_cgi' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in `dispatch' /var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in `handle_dispatch' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/lib/ruby/1.8/webrick/server.rb:92:in `each' /usr/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/lib/ruby/1.8/webrick/server.rb:82:in `start' /var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in `dispatch' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' script/server:3
这是完整的痕迹：
/usr/lib/ruby/1.8/tempfile.rb:167:in `close' /usr/lib/ruby/1.8/tempfile.rb:167:in `callback' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `call' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/vendor/builder-2.1.2/blankslate.rb:85:in `method_added' app/controllers/uploaded_files_controller.rb:114 /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_without_new_constant_marking' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:203:in `load_file' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:202:in `load_file' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:94:in `require_or_load' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:248:in `load_missing_constant' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:453:in `const_missing' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:465:in `const_missing' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/inflector.rb:257:in `constantize' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/string/inflections.rb:148:in `constantize' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/routing.rb:1426:in `recognize' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:170:in `handle_request' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in `dispatch' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in `dispatch_cgi' /var/lib/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in `dispatch' /var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:112:in `handle_dispatch' /var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:78:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/lib/ruby/1.8/webrick/server.rb:92:in `each' /usr/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/lib/ruby/1.8/webrick/server.rb:82:in `start' /var/lib/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in `dispatch' /var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/servers/webrick.rb:66 /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in `new_constants_in' /var/lib/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in `require' /var/lib/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require' script/server:3
我不知道为什么会发生这种情况……客户端会在出现此错误之前上传大约15-30个文件（从文件夹到Java客户端）。 我正在运行Rails 2.0.2。 我是否正在使用sqlite作为数据库在开发模式下运行这一事实？ 任何帮助将不胜感激 ！
多谢你们 ！
我想我已经弄清楚了，至少我认为我做了（客户端现在继续上传，没有错误）。 从上传的文件中读取数据后，您还应该关闭它。 谁曾想到？ ：P
我们的Rails应用程序遇到了同样的问题，虽然只是关闭文件对象对我们不起作用（我们使用Paperclip，它确实关闭了文件）。 我为Tempfile类开发了一个monkeypatch，它已经为我们修复了它，我们使用它作为Rails初始化器。
您可以从http://github.com/jwinky/ruby_tempfile_ioerror获取它