1.
rails new bootstrappy
2.
cd bootstrappy
3.
yarn add bootstrap jquery popper.js
4.
在environment.js
config/webpack/environment.js
添加以下内容：
const webpack = require("webpack")
environment.plugins.append("Provide", new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery',
Popper: ['popper.js', 'default']
}))
5.
在application.js
位置：app/javascript/packs/application.js
添加：
import "bootstrap"
import "../stylesheets/application"
document.addEventListener("turbolinks:load", () => {
$('[data-toggle="tooltip"]').tooltip()
$('[data-toggle="popover"]').popover()
})
6.
在app/javascript 中创建stylesheets 文件夹
mkdir app/javascript/stylesheets
在stylesheets文件夹中创建文件：application.scss
7.
在app/javascript/stylesheets/application.scss 中添加：
@import "~bootstrap/scss/bootstrap";
8。
更新：app/views/layouts/application.html.erb
添加：
<%= stylesheet_pack_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
application.html.erb 看起来像这样：
<!DOCTYPE html>
<html>
<head>
<title>Bootstrappy</title>
<%= csrf_meta_tags %>
<%= csp_meta_tag %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= stylesheet_pack_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %>
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
</head>
<body>
<%= yield %>
</body>
</html>
9。
测试一下：
添加navbar、tooltips、popover到：
app/views/layouts/application.html.erb
<!DOCTYPE html>
<html>
<head>
<title>Bootstrappy</title>
<%= csrf_meta_tags %>
<%= csp_meta_tag %>
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track':
'reload' %>
<%= stylesheet_pack_tag 'application', media: 'all', 'data-turbolinks-track':
'reload' %>
<%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %>
</head>
<body>
<!-- add navbar -->
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-
target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-
expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown"
role="button"
data-toggle=" dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-
disabled="true">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-
label="Search">
<button class="btn btn-outline-success my-2 my-sm-0"
type="submit">Search</button>
</form>
</div>
</nav>
<!-- add tooltips -->
<button type="button" class="btn btn-secondary" data-toggle="tooltip" data-
placement="top" title="Tooltip on top">
Tooltip on top
</button>
<button type="button" class="btn btn-secondary" data-toggle="tooltip" data-
placement="right" title="Tooltip on right">
Tooltip on right
</button>
<button type="button" class="btn btn-secondary" data-toggle="tooltip" data-
placement="bottom" title="Tooltip on bottom">
Tooltip on bottom
</button>
<button type="button" class="btn btn-secondary" data-toggle="tooltip" data-
placement="left" title="Tooltip on left">
Tooltip on left
</button>
<!-- add popover -->
<button type="button" class="btn btn-lg btn-danger" data-toggle="popover"
title="Popover title" data-content="And here's some amazing content. It's very
engaging. Right?">Click to toggle popover</button>
<%= yield %>
</body>
</html>
10.
rails g controller main index
11.
更新app/config/routes.rb
像这样：
Rails.application.routes.draw do
root to: 'main#index'
end
12.
运行start rails server
13.
请点击此链接：
http://localhost:3000/ 尽情享受吧！