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我是 Rails 和 stackoverflow 的新手，所以我会尽量明确。我要求更改某人的项目，因此我获取了源代码并尝试使其在我自己的工作计算机（在 Windows 上...）上运行，以在我的本地浏览器上对其进行测试（参见：rails s）。该项目假设正在运行，因为它已经在生产中，所以我认为问题来自我自己的工作环境。安装完所有需要的 gem 后，运行 bundle install 并启动数据库服务器（项目使用的是 mongodb），我运行 rails server。该命令实际上有效，但是当我尝试使用本地主机地址（http://localhost:3000/）上的任何浏览器连接应用程序时，我收到一个错误，我真的不明白原因......

这是我得到的日志：

Started GET "/" for 127.0.0.1 at 2012-12-04 14:51:30 +0100
Processing by HomeController#index as HTML
** [Localeapp] 1354629090-- Handling translation updates
** [Localeapp] 1354629090 - polling
** [Localeapp] API CALL: get https://api.localeapp.com/v1/projects/hhMxHgKAzj9p1dFuS0GnTTnemJ5F9dXLDuCa1KacQSymUcmTFk/translations.yml?updated_at=1354612995
** [Localeapp] ATTEMPT 1
Completed 500 Internal Server Error in 1192ms

RestClient::NotAcceptable (406 Not Acceptable):
  rest-client (1.6.7) lib/restclient/abstract_response.rb:48:in `return!'
  rest-client (1.6.7) lib/restclient/request.rb:230:in `process_result'
  rest-client (1.6.7) lib/restclient/request.rb:178:in `block in transmit'
  C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/net/http.rb:745:in `start'
  rest-client (1.6.7) lib/restclient/request.rb:172:in `transmit'
  rest-client (1.6.7) lib/restclient/request.rb:64:in `execute'
  rest-client (1.6.7) lib/restclient/request.rb:33:in `execute'
  localeapp (0.5.2) lib/localeapp/api_caller.rb:66:in `make_call'
  localeapp (0.5.2) lib/localeapp/api_caller.rb:28:in `call'
  localeapp (0.5.2) lib/localeapp/api_call.rb:6:in `api_call'
  localeapp (0.5.2) lib/localeapp/poller.rb:43:in `poll!'
  localeapp (0.5.2) lib/localeapp/rails/controller.rb:14:in `handle_translation_updates'
  activesupport (3.2.3) lib/active_support/callbacks.rb:429:in `_run__744959596__process_action__507377612__callbacks'
  activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
  activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (3.2.3) lib/abstract_controller/callbacks.rb:17:in `process_action'
  actionpack (3.2.3) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
  activesupport (3.2.3) lib/active_support/notifications.rb:123:in `block in instrument'
  activesupport (3.2.3) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (3.2.3) lib/active_support/notifications.rb:123:in `instrument'
  actionpack (3.2.3) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
  actionpack (3.2.3) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'
  actionpack (3.2.3) lib/abstract_controller/base.rb:121:in `process'
  actionpack (3.2.3) lib/abstract_controller/rendering.rb:45:in `process'
  actionpack (3.2.3) lib/action_controller/metal.rb:203:in `dispatch'
  actionpack (3.2.3) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
  actionpack (3.2.3) lib/action_controller/metal.rb:246:in `block in action'
  actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `call'
  actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
  actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:36:in `call'
  journey (1.0.4) lib/journey/router.rb:68:in `block in call'
  journey (1.0.4) lib/journey/router.rb:56:in `each'
  journey (1.0.4) lib/journey/router.rb:56:in `call'
  actionpack (3.2.3) lib/action_dispatch/routing/route_set.rb:600:in `call'
  omniauth (1.1.1) lib/omniauth/strategy.rb:177:in `call!'
  omniauth (1.1.1) lib/omniauth/strategy.rb:157:in `call'
  omniauth (1.1.1) lib/omniauth/builder.rb:48:in `call'
  mongoid (2.5.0) lib/rack/mongoid/middleware/identity_map.rb:33:in `block in call'
  mongoid (2.5.0) lib/mongoid.rb:133:in `unit_of_work'
  mongoid (2.5.0) lib/rack/mongoid/middleware/identity_map.rb:33:in `call'
  sass (3.2.1) lib/sass/plugin/rack.rb:54:in `call'
  warden (1.2.1) lib/warden/manager.rb:35:in `block in call'
  warden (1.2.1) lib/warden/manager.rb:34:in `catch'
  warden (1.2.1) lib/warden/manager.rb:34:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
  rack (1.4.1) lib/rack/etag.rb:23:in `call'
  rack (1.4.1) lib/rack/conditionalget.rb:25:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/head.rb:14:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/flash.rb:242:in `call'
  rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'
  rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/cookies.rb:338:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
  activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `_run__286698992__call__202403334__callbacks'
  activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
  activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/reloader.rb:65:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
  railties (3.2.3) lib/rails/rack/logger.rb:26:in `call_app'
  railties (3.2.3) lib/rails/rack/logger.rb:16:in `call'
  quiet_assets (1.0.1) lib/quiet_assets.rb:20:in `call_with_quiet_assets'
  actionpack (3.2.3) lib/action_dispatch/middleware/request_id.rb:22:in `call'
  rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
  rack (1.4.1) lib/rack/runtime.rb:17:in `call'
  activesupport (3.2.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  rack (1.4.1) lib/rack/lock.rb:15:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/static.rb:62:in `call'
  airbrake (3.1.4) lib/airbrake/rack.rb:41:in `call'
  airbrake (3.1.4) lib/airbrake/user_informer.rb:12:in `call'
  railties (3.2.3) lib/rails/engine.rb:479:in `call'
  railties (3.2.3) lib/rails/application.rb:220:in `call'
  railties (3.2.3) lib/rails/railtie/configurable.rb:30:in `method_missing'
  rack (1.4.1) lib/rack/deflater.rb:13:in `call'
  rack (1.4.1) lib/rack/content_length.rb:14:in `call'
  railties (3.2.3) lib/rails/rack/log_tailer.rb:14:in `call'
  thin (1.4.1) lib/thin/connection.rb:80:in `block in pre_process'
  thin (1.4.1) lib/thin/connection.rb:78:in `catch'
  thin (1.4.1) lib/thin/connection.rb:78:in `pre_process'
  thin (1.4.1) lib/thin/connection.rb:53:in `process'
  thin (1.4.1) lib/thin/connection.rb:38:in `receive_data'
  eventmachine-1.0.0-x86 (mingw32) lib/eventmachine.rb:187:in `run_machine'
  eventmachine-1.0.0-x86 (mingw32) lib/eventmachine.rb:187:in `run'
  thin (1.4.1) lib/thin/backends/base.rb:63:in `start'
  thin (1.4.1) lib/thin/server.rb:159:in `start'
  rack (1.4.1) lib/rack/handler/thin.rb:13:in `run'
  rack (1.4.1) lib/rack/server.rb:265:in `start'
  railties (3.2.3) lib/rails/commands/server.rb:70:in `start'
  railties (3.2.3) lib/rails/commands.rb:55:in `block in <top (required)>'
  railties (3.2.3) lib/rails/commands.rb:50:in `tap'
  railties (3.2.3) lib/rails/commands.rb:50:in `<top (required)>'
  script/rails:6:in `require'
  script/rails:6:in `<main>'


  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_trace.erb (4.0ms)
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (2.0ms)
  Rendered C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-3.2.3/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (56.0ms)

这是提到的控制器：

class HomeController < ApplicationController
  def index
    @presenter = Home::IndexPresenter.new
    @article_presenter = Articles::IndexPresenter.new(Article.with_state(:published).last)
  end
end

如果有人可以帮助我，那就太好了。问我是不是忘了提什么。谢谢。

4

1 回答 1

1

根本问题是所请求的 URL 正在rest_client返回 HTTP 406 代码，您可以通过运行看到该代码curl，例如

curl --include https://api.localeapp.com/v1/projects/hhMxHgKAzj9p1dFuS0GnTTnemJ5F9dXLDuCa1KacQSymUcmTFk/translations.yml?updated_at=1354612995

（我刚刚注意到您在 Windows 环境中——如果您无权访问，curl您可以安装几个工具来发出请求）

然后，在您的控制器中，似乎没有任何检查来查看来自 RestClient 调用的响应是否成功（2xx 状态）。因为 RestClient 引发异常，您的应用程序中会出现 500 错误。

因此，如果您不确定 URL 不起作用的原因，那么您需要检查由localeapp.com

但鉴于 API 是一个外部服务，您可能还希望在您的软件中添加一些错误处理。有几件事情被称为 RestClient，但如果它是由 archiloque 提供的，文档在此处提供了一个很好的“结果处理”示例。

于 2012-12-04T16:01:53.000 回答