一、在GemFile添加:gem 'devise', '~> 4.2', '>= 4.2.1'html
二、终端执行:bundle install
app
三、终端执行:rails generate devise:installpost
四、在/app/views/layouts/application.html.erb,添加:spa
<p class="notice"><%= notice %></p>code
<p class="alert"><%= alert %></p>htm
五、在终端执行:rails g devise:viewsblog
六、终端执行:rails generate devise Userio
七、终端执行: rake db:migrate
class