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我正在我的 Rails 应用程序中设置 jQuery 和 Uploadify（使用 uploadify-rails 插件）。一切正常，闪存已加载，真实性参数与会话密钥一起传递等等。但是，我在处理从闪存上传的过程中的 MySQL 查询都报告了“冗余 UTF-8 序列”错误。SQL 看起来是什么并不重要，只是第一个调用的 SQL 得到了错误：

Processing RoomsController#update to json (for 86.162.102.136 at 2010-04-26 11:27:55) [PUT]
Parameters: {"Filename"=>"fb-logo.png",  "_myapp_session"=>"BAh7CzoPc2Vzc2lvbl9pZCIlY2I5N2FjYjQ4ZjcwMmQzMzQxMjIwMmRmN2EwM2ZhZWM6EWludmFsaWRfdXNlckY6EF9jc3JmX3Rva2VuIjEzSWtvaGJrWDNhQXV6OGtuUllyMmdhbkVnR3JKV2QrM3RrVVJZaTJiak1vPToQam9pbl9zb3VyY2UiN2h0dHA6Ly9iZXRhLmNyYXNocGFkZGVyLmNvbS9wcm9maWxlL2V4Y2VsbGVudGxhcmtzIgpmbGFzaElDOidBY3Rpb25Db250cm9sbGVyOjpGbGFzaDo6Rmxhc2hIYXNoewAGOgpAdXNlZHsAOgx1c2VyX2lkaQY=--52b594041395bf8cf5998859eb43c4ed82c74490", "format"=>"json", "folder"=>"/rooms/", "action"=>"update", "authenticity_token"=>"3IkohkX3aAuz8knRYr2ganEgGrJWd 3tkURYi2bjMo=", "_method"=>"PUT", "id"=>"2120", "Upload"=>"Submit Query", "fileext"=>"*.jpg;*.jpeg;*.gif;*.png", "controller"=>"rooms", "room"=>{"photo_uploads"=>#<File:/tmp/RackMultipart20100426-1152-12dn5rn-0>}}
  [4;36;1mUser Load (0.0ms)[0m   [0;1mArgumentError: redundant UTF-8 sequence: SELECT * FROM `users` WHERE (`users`.`id` = 1) LIMIT 1[0m

ActiveRecord::StatementInvalid (ArgumentError: redundant UTF-8 sequence: SELECT * FROM `users` WHERE (`users`.`id` = 1)  LIMIT 1):
lib/authenticated_system.rb:109:in `login_from_session'
lib/authenticated_system.rb:12:in `current_user'
app/controllers/application_controller.rb:296:in `setup_page_titles'
lib/redis_db_logging.rb:18:in `enable_redis_logging'
lib/redis_logger.rb:43:in `redisize'
lib/redis_logger.rb:42:in `redisize'
lib/redis_db_logging.rb:11:in `enable_redis_logging'
haml (2.2.2) lib/sass/plugin/rails.rb:19:in `process_without_compass'
/home/crashpaddernew/.gem/ruby/1.8/gems/chriseppstein-compass-0.8.8/lib/compass/app_integration/rails/action_controller.rb:7:in `process'
/dh/passenger/lib/phusion_passenger/rack/request_handler.rb:91:in `process_request'
/dh/passenger/lib/phusion_passenger/abstract_request_handler.rb:206:in `main_loop'
/dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:376:in `start_request_handler'
/dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:334:in `handle_spawn_application'
/dh/passenger/lib/phusion_passenger/utils.rb:182:in `safe_fork'
/dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:332:in `handle_spawn_application'
/dh/passenger/lib/phusion_passenger/abstract_server.rb:351:in `__send__'
/dh/passenger/lib/phusion_passenger/abstract_server.rb:351:in `main_loop'
/dh/passenger/lib/phusion_passenger/abstract_server.rb:195:in `start_synchronously'
/dh/passenger/lib/phusion_passenger/abstract_server.rb:162:in `start'
/dh/passenger/lib/phusion_passenger/railz/application_spawner.rb:213:in `start'
/dh/passenger/lib/phusion_passenger/spawn_manager.rb:261:in `spawn_rails_application'

有谁知道“冗余 UTF-8 序列”错误是什么，为什么来自 Flash 上传器的请求会导致它？还是 JSON 有问题？

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3 回答 3

4

万一其他人疯狂地在谷歌上搜索“冗余 UTF-8 序列”（可能是因为您正试图将 Excel 文档上传到 Rails 应用程序），让我为您节省一些细节。

已在 rails 的 3-2-stable 分支中实施了修复，但尚未发布。为了将这种优点融入您自己的应用程序，只需创建此文件：

module ActiveSupport::JSON::Encoding
  def self.escape(string)
    if string.respond_to?(:force_encoding)
       string = string.encode(::Encoding::UTF_8, :undef => :replace).force_encoding(::Encoding::BINARY)
    end
    json = string.gsub(escape_regex) { |s| ESCAPED_CHARS[s] }
    json = %("#{json}")
    json.force_encoding(::Encoding::UTF_8) if json.respond_to?(:force_encoding)
    json
  end
end

...并确保require它。在那之后，你应该很高兴。

于 2013-01-10T23:23:05.040 回答
2

不幸的是，该补丁在 Rails 3.2.14 上恢复了 https://github.com/rails/rails/commit/c910388587220e962682b0b9187e79b8f1641c17

于 2013-09-10T17:41:03.210 回答
0

我相信你遇到了这个错误：

https://rails.lighthouseapp.com/projects/8994/tickets/1112-redundant-utf-8-sequence-in-stringto_json

似乎无法通过会话调用进行身份验证，也许您的会话密钥具有错误报告中提到的字符。

于 2010-04-26T18:14:42.723 回答