Rails 404示例或JavaScript文件的错误

StackOverflow https://stackoverflow.com/questions/3410956

题

Rails无法在生产上加载CSS和JS文件（404错误），但在开发中加载它们没有问题。

我正在使用Capistrano进行部署和跑步3.我的开发之路是 /www/myapp 但是我的生产之路是 /www/myapp/当前.

该应用程序本身似乎工作正常，因此该问题似乎与CSS/JS文件隔离开来。

我尝试设置 rails_root 变量 /www/myapp/当前 在 环境/生产 但这没有任何区别，文件仍然没有加载。

这是生产日志的完整堆栈：

Started GET "/stylesheets/scaffold.css?1280867531" for 98.173.61.21 at 2010-08-04 17:04:05 -0700

ActionController::RoutingError (No route matches "/stylesheets/scaffold.css"):
/usr/local/rvm/gems/ruby-1.9.2-rc2/gems/actionpack-3.0.0.beta4/lib/action_dispatch/middleware/show_exceptions.rb:55:in `call'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/railties-3.0.0.beta4/lib/rails/rack/logger.rb:14:in `call'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/rack-1.1.0/lib/rack/runtime.rb:17:in `call'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/rack-1.1.0/lib/rack/lock.rb:11:in `block in call'
  <internal:prelude>:10:in `synchronize'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/rack-1.1.0/lib/rack/lock.rb:11:in `call'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/railties-3.0.0.beta4/lib/rails/application.rb:145:in `call'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/railties-3.0.0.beta4/lib/rails/application.rb:81:in `method_missing'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:642:in `process_client'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:715:in `block in worker_loop'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:713:in `each'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:713:in `worker_loop'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:604:in `block (2 levels) in spawn_missing_workers'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:601:in `fork'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:601:in `block in spawn_missing_workers'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:597:in `each'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:597:in `spawn_missing_workers'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:611:in `maintain_worker_count'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:270:in `start'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/lib/unicorn.rb:29:in `run'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/gems/unicorn-1.1.2/bin/unicorn:123:in `<top (required)>'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/bin/unicorn:19:in `load'
  /usr/local/rvm/gems/ruby-1.9.2-rc2/bin/unicorn:19:in `<main>'
有帮助吗？

解决方案

错误消息看起来您的Rails应用程序正在获取静态文件的请求。 Rails 3默认情况下不提供静态文件，因为Web服务器可以做得更好。您应该检查Web服务器的配置。如果没有静态文件，则应将其配置为首先查看，如果在公共目录中存在静态文件，并且仅将请求转发到Rails应用程序。

另外，您也可以使铁路还可以使用 config.serve_static_assets = true 在配置/环境/生产中。但是，这不建议在生产中使用，因为您真的不应该仅仅用于服务静态文件的铁路应用程序的资源。最好告诉Web服务器这样做。

其他提示

我通过运行此命令解决了这个问题：

RAILS_ENV=production rake assets:precompile

参考： http://guides.rubyonrails.org/asset_pipeline.html

我的环境是 Nginx + Unicorn + Rails4

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