载波上传编码::UndefinedConversionError:“xFF"；从 ASCII-8BIT 到 UTF-8 [英] carrierwave upload Encoding::UndefinedConversionError: "xFF" from ASCII-8BIT to UTF-8

问题描述

在生产中遇到此错误，但无法弄清楚问题出在哪里.相同的请求适用于本地开发.但生产失败.我正在构建供移动客户端使用的 API

Got this error on production but can't figure out where the problem is. Same request works fine on local development. But fail on production. I'm building API for mobile client use

```

Encoding::UndefinedConversionError: "xFF" from ASCII-8BIT to UTF-8
... 39 non-project frames
File"/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport4.1.0/lib/active_support/core_ext/object/json.rb" line 34 in encode
File"/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport4.1.0/lib/active_support/core_ext/object/json.rb" line 34 in to_json
File"/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport4.1.0/lib/active_support/core_ext/object/json.rb" line 34 in to_json_with_active_support_encoder
File"/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport4.1.0/lib/active_support/json/encoding.rb" line 56 in to_json
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/json-1.8.1/lib/json/common.rb" line 223 in generate
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/json-1.8.1/lib/json/common.rb" line 223 in generate
File"/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport4.1.0/lib/active_support/json/encoding.rb" line 96 in stringify
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport4.1.0/lib/active_support/json/encoding.rb" line 34 in encode
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/json/encoding.rb" line 21 in encode
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/core_ext/object/json.rb" line 37 in to_json_with_active_support_encoder
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/multi_json-1.10.1/lib/multi_json/adapters/json_common.rb" line 21 in dump
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/multi_json-1.10.1/lib/multi_json/adapter.rb" line 24 in dump
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/multi_json-1.10.1/lib/multi_json.rb" line 136 in dump
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rollbar-0.12.20/lib/rollbar.rb" line 437 in build_payload
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rollbar-0.12.20/lib/rollbar.rb" line 95 in report_exception
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rollbar-0.12.20/lib/rollbar/exception_reporter.rb" line 9 in report_exception_to_rollbar
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rollbar-0.12.20/lib/rollbar/middleware/rails/show_exceptions.rb" line 22 in rescue in call_with_rollbar
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rollbar-0.12.20/lib/rollbar/middleware/rails/show_exceptions.rb" line 19 in call_with_rollbar
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/show_exceptions.rb" line 30 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/railties-4.1.0/lib/rails/rack/logger.rb" line 38 in call_app
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/railties-4.1.0/lib/rails/rack/logger.rb" line 20 in block in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/tagged_logging.rb" line 68 in block in tagged
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/tagged_logging.rb" line 26 in tagged
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/tagged_logging.rb" line 68 in tagged
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/railties-4.1.0/lib/rails/rack/logger.rb" line 20 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/request_id.rb" line 21 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rack-1.5.2/lib/rack/methodoverride.rb" line 21 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rack-1.5.2/lib/rack/runtime.rb" line 17 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/activesupport-4.1.0/lib/active_support/cache/strategy/local_cache_middleware.rb" line 26 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/rack-1.5.2/lib/rack/sendfile.rb" line 112 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/railties-4.1.0/lib/rails/engine.rb" line 514 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/railties-4.1.0/lib/rails/application.rb" line 144 in call
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb" line 572 in process_client
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb" line 666 in worker_loop
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb" line 521 in spawn_missing_workers
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/unicorn-4.8.2/lib/unicorn/http_server.rb" line 140 in start
File "/home/deploy/.bundler/example/ruby/2.0.0/gems/unicorn-4.8.2/bin/unicorn_rails" line 209 in <top (required)>
File "/home/deploy/.bundler/example/ruby/2.0.0/bin/unicorn_rails" line 23 in load
File "/home/deploy/.bundler/example/ruby/2.0.0/bin/unicorn_rails" line 23 in <main>

```

```

  def create
    @work = current_user.works.build(permitted_params.work)
    if @work.save
      render json: @work, status: :created
    else
      render json: { status: 'error', message: @work.errors.full_messages }, status: :bad_request
    end
  end

```

```

POST /api/my/works HTTP/1.1
Host: example.com
Cache-Control: no-cache
Postman-Token: 98f4ce29-a72e-53e9-98e6-d08bbc4ca6f1
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryp7MA4YWxkTrZu0gW

----WebKitFormBoundaryE19zNvXGzXaLvS5C
Content-Disposition: form-data; name="auth_token"

0e008b699c8904c26cba54ac54a5bb49
----WebKitFormBoundaryE19zNvXGzXaLvS5C
Content-Disposition: form-data; name="name"

blah
----WebKitFormBoundaryE19zNvXGzXaLvS5C
Content-Disposition: form-data; name="cover_image"; filename="IMG_1755.JPG"
Content-Type: image/jpeg


----WebKitFormBoundaryE19zNvXGzXaLvS5C
Content-Disposition: form-data; name="model"

iPad Air
----WebKitFormBoundaryE19zNvXGzXaLvS5C
Content-Disposition: form-data; name="work_type"

is_public
----WebKitFormBoundaryE19zNvXGzXaLvS5C

```

Rails 4.1.1红宝石 2.0

Rails 4.1.1 Ruby 2.0

推荐答案

根据 Rails 4.1 发行说明:

According Rails 4.1 release note:

删除了对用于编码自定义的 encode_json 钩子的支持对象转换为 JSON.此功能已被提取到activesupport-json_encoder gem.(相关拉取请求/更多细节)

Removed support for the encode_json hook used for encoding custom objects into JSON. This feature has been extracted into the activesupport-json_encoder gem. (Related Pull Request / More Details)

因为 activesupport 不再编码无效代码.将 activesupport-json_encoder gem 添加到 Gemfile 解决此问题.

Because activesupport doesn't encoding invalid code anymore. Add activesupport-json_encoder gem to Gemfile fix this issue.

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