下面是我在资产管道中使用字体的方法:

1)把你所有的字体文件放在app/assets/fonts/下，实际上你不限制把它放在fonts文件夹名称下。你可以放任何你喜欢的子文件夹名。例如app/assets/abc或app/assets/anotherfonts。但我强烈建议你把它放在app/assets/fonts/文件夹结构更好。

2)从你的sass文件中，使用sass helper font-path来请求你的字体资产，就像这样

@font-face {
    font-family: 'FontAwesome';
    src: url(font-path('fontawesome-webfont.eot') + '?v=4.4.0');
    src: url(font-path('fontawesome-webfont.eot') + '?#iefix&v=4.4.0') format('embedded-opentype'),
         url(font-path('fontawesome-webfont.woff2') + '?v=4.4.0') format('woff2'),
         url(font-path('fontawesome-webfont.woff') + '?v=4.4.0') format('woff'),
         url(font-path('fontawesome-webfont.ttf') + '?v=4.4.0') format('truetype'),
         url(font-path('fontawesome-webfont.svg') + '?v=4.4.0#fontawesomeregular') format('svg');
    font-weight: normal;
    font-style: normal;
}

3)运行bundle exec rake assets:从本地机器预编译并查看application.css的结果。你应该会看到这样的东西:

@font-face {
    font-family: 'FontAwesome';
    src: url("/assets/fontawesome-webfont-d4f5a99224154f2a808e42a441ddc9248ffe78b7a4083684ce159270b30b912a.eot" "?v=4.4.0");
    src: url("/assets/fontawesome-webfont-d4f5a99224154f2a808e42a441ddc9248ffe78b7a4083684ce159270b30b912a.eot" "?#iefix&v=4.4.0") format("embedded-opentype"), url("/assets/fontawesome-webfont-3c4a1bb7ce3234407184f0d80cc4dec075e4ad616b44dcc5778e1cfb1bc24019.woff2" "?v=4.4.0") format("woff2"), url("/assets/fontawesome-webfont-a7c7e4930090e038a280fd61d88f0dc03dad4aeaedbd8c9be3dd9aa4c3b6f8d1.woff" "?v=4.4.0") format("woff"), url("/assets/fontawesome-webfont-1b7f3de49d68b01f415574ebb82e6110a1d09cda2071ad8451bdb5124131a292.ttf" "?v=4.4.0") format("truetype"), url("/assets/fontawesome-webfont-7414288c272f6cc10304aa18e89bf24fb30f40afd644623f425c2c3d71fbe06a.svg" "?v=4.4.0#fontawesomeregular") format("svg");
    font-weight: normal;
    font-style: normal;
}

如果你想了解更多资产管道是如何工作的，你可以访问下面的简单指南: https://designcode.commandrun.com/rails-asset-pipeline-simple-guide-830e2e666f6c#.6lejlayk2

把你的字体文件(woff, woff2, eot, ttf，…)放在/app/assets/fonts目录下。

然后添加以下到您的配置/初始化/资产。rb:

Rails.application.config.assets.paths << Rails.root.join('app', 'assets', 'fonts')
Rails.application.config.assets.precompile << /\.(?:svg|eot|woff|woff2|ttf)\z/

在上面的答案中，woff2没有包括在内(为了将来的参考，你可能需要添加其他扩展，只需在这里添加|{font-file-extension})

使用css文件中的字体:

重要的是，你需要将它从stylesheet.css重命名为stylesheet.css.scss(这是为了让font-url在资产预编译后正确地在生产中转换字体的url):

@font-face {
  font-family: 'MyFont'
  src: font-url('myfont.woff') format('woff');
}

body{
  font-family: 'MyFont'
}

然后运行:

rails assets:precompile

在运行资产预编译后，你的字体文件从app/assets/fonts/myfont复制。woff到public/assets/myfont-{SOME_DIGEST_KEY}。woff的位置。现在上面的css在生产中也很像图像资产。

您还可以看到，在预编译资产命令之后创建了一个应用程序-{somedigest}.css，在其中您将看到 现在，我们的font-url('myfont.woff')将被转换为url(/assets/myfont.woff-{SOME_DIGEST_KEY}.woff)，并且摘要与文件移动到的位置匹配。通过这种方式，更新你的字体文件也可以适当地破坏浏览器缓存等。

确保你的nginx也服务于public/assets文件夹以获得更好的性能。这是用rails 5和rails 6在生产中测试的。它也应该工作与rails 4最有可能。

只需要把你的字体放在app/assets/fonts文件夹中，并在app开始使用application.rb中编写代码时设置自动加载路径

config.assets.paths << Rails.root。加入("app"， "assets"， "fonts") 而且

然后在css中使用以下代码。

@font面{

 font-family: 'icomoon';
 src: asset-url('icomoon.eot');
 src: asset-url('icomoon.eot') format('embedded-opentype'),
      asset-url('icomoon.woff') format('woff'),
      asset-url('icomoon.ttf') format('truetype'),
      asset-url('icomoon.svg') format('svg');
 font-weight: normal;
 font-style: normal;

}

试一试。

谢谢

在我的情况下，最初的问题是使用资产url没有结果，而不是简单的url css属性。使用asset-url最终为我在Heroku工作。另外，在/assets/fonts文件夹中设置字体并调用asset-url('font.eot')，而无需添加任何子文件夹或任何其他配置。

如果你有一个叫做scaffold。css的文件。Scss，那么就有可能覆盖您在其他文件中所做的所有自定义操作。我把那个文件注释掉了，突然之间一切都正常了。如果那个文件里没有什么重要的东西，你还不如把它删掉!

If your Rails version is between > 3.1.0 and < 4, place your fonts in any of the these folders: app/assets/fonts lib/assets/fonts vendor/assets/fonts For Rails versions > 4, you must place your fonts in the app/assets/fonts folder. Note: To place fonts outside of these designated folders, use the following configuration: config.assets.precompile << /\.(?:svg|eot|woff|ttf)\z/ For Rails versions > 4.2, it is recommended to add this configuration to config/initializers/assets.rb. However, you can also add it to either config/application.rb , or to config/production.rb Declare your font in your CSS file: @font-face { font-family: 'Icomoon'; src:url('icomoon.eot'); src:url('icomoon.eot?#iefix') format('embedded-opentype'), url('icomoon.svg#icomoon') format('svg'), url('icomoon.woff') format('woff'), url('icomoon.ttf') format('truetype'); font-weight: normal; font-style: normal; } Make sure your font is named exactly the same as in the URL portion of the declaration. Capital letters and punctuation marks matter. In this case, the font should have the name icomoon. If you are using Sass or Less with Rails > 3.1.0 (your CSS file has .scss or .less extension), then change the url(...) in the font declaration to font-url(...). Otherwise, your CSS file should have the extension .css.erb, and the font declaration should be url('<%= asset_path(...) %>'). If you are using Rails > 3.2.1, you can use font_path(...) instead of asset_path(...). This helper does exactly the same thing but it's more clear. Finally, use your font in your CSS like you declared it in the font-family part. If it was declared capitalized, you can use it like this: font-family: 'Icomoon';