加入：gem "devise", github: "heartcombo/devise"
?指令： bundle install
? ? ? ? ? ? rails generate devise:install
在config/environments/development.rb
Rails.application.configure do
加入：config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
在app/views/layouts/application.html.erb
<body>
加入： ? ?<p class="notice"><%= notice %></p>
加入： ? <p class="alert"><%= alert %></p>
? ? <%= yield %>
? </body>
指令：rails generate devise user
? ? ? ? ? ? rake db:migrate
? ? ? ? ? ? rails generate devise:views
將app/views/devise/registrations/new.html.erb
<%= form_for(resource, as: resource_name, url: registration_path(resource_name)) do |f| %>
修改為：<%= form_for(resource, as: resource_name, url: registration_path(resource_name), data: {turbo: false}) do |f| %>
