使用Rails Asset Pipeline在JavaScript文件中编码问题 [英] Encoding issues in javascript files using rails asset pipeline

问题描述

我正在使用Rails 3.1和资产管道(红宝石1.9.2).

I'm using rails 3.1 and the asset pipeline (ruby 1.9.2).

尝试提供具有utf-8编码字符串的javascript js.erb文件时，出现以下错误

I get the following error when trying to serve a javascript js.erb file that has utf-8 encoded strings

invalid byte sequence in US-ASCII

我在我的environment.rb文件中设置了Encoding.default_external = "UTF-8".如何获得资产管道以其他编码方式投放?

I've set Encoding.default_external = "UTF-8" in my environment.rb file. How do i get the asset pipeline to serve with a different encoding?

编辑

该错误仅在我在文件外部生成utf-8字符时出现(在这种情况下，通过从数据库查询).如果我添加

The error only shows up when I'm generating the utf-8 character outside of the file (in this case by querying from the DB). The error goes away if I add

<% "日" %>

到文件顶部.我猜这里正在进行某种编码猜测，但是如果没有这种棘手的解决方案，我该如何避免呢?

to the top of the file. I'm guessing there's some kind of encoding guessing going on here, but how do I avoid it without that hacky solution?

推荐答案

在加载文件时，Ruby会尝试猜测"其编码.如果未找到UTF-8或任何其他非ASCII字符，它将使用US-ASCII作为文件编码，如果突然遇到非ASCII字符(例如在运行时加载.

When loading a file, Ruby tries to "guess" its encoding. If no UTF-8 or any other non-ASCII characters are found, it uses US-ASCII as encoding for the file and throws an error if it suddenly encounters a non-ASCII character, which e.g. is loaded at run-time.

此问题的最佳解决方案是通过添加以下命令来强制Ruby使用某种编码 # encoding: utf-8作为.rb文件的第一行；如果<%# encoding: utf-8 %>是.erb文件，则为<%# encoding: utf-8 %>.

The best solution for this problem is to force Ruby to use a certain encoding by adding # encoding: utf-8 as the first line of a .rb file or <%# encoding: utf-8 %> if it's a .erb file.

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