我尝试按照“安全上传”进行操作。在载波中有点混乱，因为我已经定制了文件路径和所有的一点。当我尝试运行该应用时，我发现无法读取文件＆＃39;错误。
这是路线：
match "/uploads/tobereviewed/:user.:username.downcase/:basename.:extension", :controller => "photos", :action => "uploaded", via: :get
上传者的sotre_dir：
class SubmitUploader < CarrierWave::Uploader::Base
def store_dir
"uploads/tobereviewed/#{model.user.username.downcase}"
end
carrierwave.rb初始化程序：
CarrierWave.configure do |config|
config.permissions = 0600
config.directory_permissions = 0700
config.root = Rails.root
end
照片控制器：
def uploaded
file = Submit.first
send_file "#{Rails.root}/uploads/tobereviewed/#{file.user.username.downcase}/#{file.id}"
end
完整的错误日志：
Started GET "/uploaded" for 127.0.0.1 at 2014-11-27 18:19:09 +0530
Processing by PhotosController#uploaded as HTML
User Load (0.4ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT 1 [["id", 1]]
Submit Load (2.6ms) SELECT "submits".* FROM "submits" ORDER BY "submits"."id" ASC LIMIT 1
User Load (2.2ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT 1 [["id", 1]]
Sent file /home/pubudu/Projects/istockseller/uploads/tobereviewed/thpubs/36603935 (0.7ms)
Completed 500 Internal Server Error in 54ms
ActionController::MissingFile - Cannot read file /home/pubudu/Projects/istockseller/uploads/tobereviewed/thpubs/36603935:
actionpack (4.2.0.beta4) lib/action_controller/metal/data_streaming.rb:68:in `send_file'
actionpack (4.2.0.beta4) lib/action_controller/metal/instrumentation.rb:49:in `block in send_file'
activesupport (4.2.0.beta4) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0.beta4) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0.beta4) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.0.beta4) lib/action_controller/metal/instrumentation.rb:47:in `send_file'
() home/pubudu/Projects/istockseller/app/controllers/photos_controller.rb:24:in `uploaded'
actionpack (4.2.0.beta4) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (4.2.0.beta4) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.0.beta4) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.0.beta4) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:151:in `block in halting_and_conditional'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:92:in `_run_callbacks'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.0.beta4) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.0.beta4) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.0.beta4) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
activesupport (4.2.0.beta4) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0.beta4) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0.beta4) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.0.beta4) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.0.beta4) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.0.beta4) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.2.0.beta4) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.0.beta4) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.0.beta4) lib/action_controller/metal.rb:195:in `dispatch'
actionpack (4.2.0.beta4) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.0.beta4) lib/action_controller/metal.rb:236:in `block in action'
actionpack (4.2.0.beta4) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (4.2.0.beta4) lib/action_dispatch/routing/route_set.rb:42:in `serve'
actionpack (4.2.0.beta4) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.0.beta4) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.0.beta4) lib/action_dispatch/routing/route_set.rb:780:in `call'
omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
rack (1.6.0.beta) lib/rack/etag.rb:23:in `call'
rack (1.6.0.beta) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.0.beta) lib/rack/head.rb:13:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/flash.rb:257:in `call'
rack (1.6.0.beta) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.0.beta) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/cookies.rb:558:in `call'
activerecord (4.2.0.beta4) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.0.beta4) lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in `call'
activerecord (4.2.0.beta4) lib/active_record/migration.rb:378:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:88:in `_run_callbacks'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
activesupport (4.2.0.beta4) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
better_errors (1.1.0) lib/better_errors/middleware.rb:84:in `protected_app_call'
better_errors (1.1.0) lib/better_errors/middleware.rb:79:in `better_errors_call'
better_errors (1.1.0) lib/better_errors/middleware.rb:56:in `call'
web-console (2.0.0.beta4) lib/action_dispatch/debug_exceptions.rb:18:in `middleware_call'
web-console (2.0.0.beta4) lib/action_dispatch/debug_exceptions.rb:13:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.0.beta4) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.0.beta4) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.0.beta4) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.0.beta4) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.0.beta4) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.0.beta4) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.0.beta) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.0.beta) lib/rack/runtime.rb:17:in `call'
activesupport (4.2.0.beta4) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.0.beta) lib/rack/lock.rb:17:in `call'
actionpack (4.2.0.beta4) lib/action_dispatch/middleware/static.rb:113:in `call'
rack (1.6.0.beta) lib/rack/sendfile.rb:113:in `call'
railties (4.2.0.beta4) lib/rails/engine.rb:514:in `call'
railties (4.2.0.beta4) lib/rails/application.rb:161:in `call'
rack (1.6.0.beta) lib/rack/tempfile_reaper.rb:15:in `call'
rack (1.6.0.beta) lib/rack/lint.rb:49:in `_call'
rack (1.6.0.beta) lib/rack/lint.rb:37:in `call'
rack (1.6.0.beta) lib/rack/showexceptions.rb:24:in `call'
rack (1.6.0.beta) lib/rack/commonlogger.rb:33:in `call'
rack (1.6.0.beta) lib/rack/chunked.rb:54:in `call'
rack (1.6.0.beta) lib/rack/content_length.rb:15:in `call'
rack (1.6.0.beta) lib/rack/handler/webrick.rb:89:in `service'
() home/pubudu/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
() home/pubudu/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
() home/pubudu/.rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'
127.0.0.1 - - [27/Nov/2014:18:19:09 +0530] "GET /uploaded HTTP/1.1" 500 - 0.0743
更新：
我设置了正确的文件路径：
send_file "#{file.filename.file}"
但是它给出了这个错误：
Cannot read file #<CarrierWave::SanitizedFile:0x007f570c2b9e58>
我的路线是否正确？
答案 0 :(得分：4)
根据您的设置，CarrierWave应将文件保存在＆＃34; / home / pubudu / Projects / istockseller / public / uploads / tobereviewed / thpubs /＃{model.user.username.downcase} /somefile.ext" ;
因此，理想情况下，您的代码应该是
send_file "#{Rails.root}/public/#{file.image.url}"
假设您的上传列是图片。
答案 1 :(得分：1)
在控制器的操作中设置调试器。
def uploaded
file = Submit.first
debugger
send_file "#{file.filename.file}"
end
现在，再次请求操作并转到调试器控制台。这里的一个提示是在调试器中打开“irb”。只需输入“irb”并按Enter键。
查看file.filename.file返回的内容。我认为这是一个无效的路径，因此请检查文件系统中是否存在该文件。然后，您可以重现下一步（send_file）并检查错误日志。
然后我建议您在计算机中打开CarrierWave gem的源代码，找出代码有什么问题。
在终端中，转到项目目录并运行：
bundle show carrierwave
这将打印出您正在使用的carrierwave gem源的路径。根据错误日志，在编辑器中打开它，找出代码有什么问题！
提示
如果您提供当前错误日志（更新后），我们可能会帮助您更好。
Cannot read file #<CarrierWave::SanitizedFile:0x007f570c2b9e58>
还不够。完整的回溯将比这个“一行”代码更好（尽可能使用pastebin）。