使用devise注销后更改路由

gem 'devise'

bundle install

rails generate devise:install

rails generate devise User

rails db:migrate

devise_for :users

Prefix            Verb   URI Pattern                        Controller#Action
new_user_session GET    /users/sign_in(.:format)           devise/sessions#new
user_session     POST   /users/sign_in(.:format)           devise/sessions#create
destroy_user_session DELETE /users/sign_out(.:format)          devise/sessions#destroy

class ApplicationController < ActionController::Base
  # ...
  
  private
  
  def after_sign_out_path_for(resource_or_scope)
    # 这里修改为你想要重定向的路径
    root_path
  end
end