ruby-on-rails - 是什么导致了这个 rails ioerror closed stream？

Question

我有一个 Rails 应用程序，在开发模式下运行(使用 sqlite 数据库)。该应用程序的目的是允许用户通过 Java 客户端上传文件。

如果用户要上传一个文件夹，会递归上传里面的所有文件。如果用户要上传文件，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

这是完整的轨迹:

/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......在出现此错误之前，客户端需要上传大约 15-30 个文件(从文件夹，通过 java 客户端)。我正在运行 Rails 2.0.2 。我在开发模式下使用 sqlite 作为数据库运行这一事实会导致这种情况吗？任何帮助将不胜感激 !

谢谢大家!

Answer 1

我想我已经弄明白了，至少我认为我弄明白了(客户端现在一直在上传，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