Ruby on rails 行动'；facebook'；找不到Desive:：OmniAuthCallbackController（使用omniauth的Facebook登录问题）

当点击我的RoR应用程序的“使用Facebook登录”按钮时，我收到错误信息：

AbstractController:：ActionNotFound位于/users/auth/facebook/callback 无法为Desive:：OmniAuthCallbackController找到操作“facebook”

你能看一下代码并尽可能多地提出解决方案吗

以下是涉及的文件（询问是否需要更多）：

配置/routes.rb：

Rails.application.routes.draw do
  devise_for :users, :controllers => { :omniauth_callbacks => "omniauth_callbacks" },
  :controllers => { registrations: 'registrations' }

  resources :posts

  root "posts#index"
end

型号/用户.rb

class User < ApplicationRecord
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable,
         :omniauthable, :omniauth_providers => [:facebook]
  def self.from_omniauth(auth)
    where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
      user.email = auth.info.email
      user.password = Devise.friendly_token[0,20]
    end
  end
  def self.new_with_session(params, session)
    super.tap do |user|
      if data = session["devise.facebook_data"] && session["devise.facebook_data"]
        ["extra"]["raw_info"]
        user.email = data["email"] if user.email.blank?
      end
    end
  end

  has_many :posts
end

  config.omniauth :facebook, 'my app id', 'my app secret'

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
    def facebook
    # You need to implement the method below in your model (e.g. app/models/user.rb)
    @user = User.from_omniauth(request.env["omniauth.auth"])
        if @user.persisted?
            sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated
            set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format?
        else
            session["devise.facebook_data"] = request.env["omniauth.auth"]
            redirect_to new_user_registration_url
        end
    end
    def failure
        redirect_to root_path
    end
end

class PostsController < ApplicationController
  before_action :set_post, only: [:show, :edit, :update, :destroy]
  before_action :authenticate_user!, except: [:index, :show]

  def index
    @posts = Post.all.order("created_at DESC")
    @post = Post.new
  end

  def show
  end

  def new
    @post = current_user.posts.build
  end

  def edit
  end

  def create
    @post = current_user.posts.build(post_params)

    respond_to do |format|
      if @post.save
        format.html { redirect_to root_path, notice: 'Post was successfully created.' }
        format.json { render :show, status: :created, location: @post }
      else
        format.html { render :new }
        format.json { render json: @post.errors, status: :unprocessable_entity }
      end
    end
  end

  def update
    respond_to do |format|
      if @post.update(post_params)
        format.html { redirect_to @post, notice: 'Post was successfully updated.' }
        format.json { render :show, status: :ok, location: @post }
      else
        format.html { render :edit }
        format.json { render json: @post.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @post.destroy
    respond_to do |format|
      format.html { redirect_to posts_url, notice: 'Post was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    def set_post
      @post = Post.find(params[:id])
    end

    def post_params
      params.require(:post).permit(:post)
    end
end

controllers/omniauth\u callbacks\u controller.rb

class User < ApplicationRecord
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable,
         :omniauthable, :omniauth_providers => [:facebook]
  def self.from_omniauth(auth)
    where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
      user.email = auth.info.email
      user.password = Devise.friendly_token[0,20]
    end
  end
  def self.new_with_session(params, session)
    super.tap do |user|
      if data = session["devise.facebook_data"] && session["devise.facebook_data"]
        ["extra"]["raw_info"]
        user.email = data["email"] if user.email.blank?
      end
    end
  end

  has_many :posts
end

  config.omniauth :facebook, 'my app id', 'my app secret'

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
    def facebook
    # You need to implement the method below in your model (e.g. app/models/user.rb)
    @user = User.from_omniauth(request.env["omniauth.auth"])
        if @user.persisted?
            sign_in_and_redirect @user, :event => :authentication #this will throw if @user is not activated
            set_flash_message(:notice, :success, :kind => "Facebook") if is_navigational_format?
        else
            session["devise.facebook_data"] = request.env["omniauth.auth"]
            redirect_to new_user_registration_url
        end
    end
    def failure
        redirect_to root_path
    end
end

class PostsController < ApplicationController
  before_action :set_post, only: [:show, :edit, :update, :destroy]
  before_action :authenticate_user!, except: [:index, :show]

  def index
    @posts = Post.all.order("created_at DESC")
    @post = Post.new
  end

  def show
  end

  def new
    @post = current_user.posts.build
  end

  def edit
  end

  def create
    @post = current_user.posts.build(post_params)

    respond_to do |format|
      if @post.save
        format.html { redirect_to root_path, notice: 'Post was successfully created.' }
        format.json { render :show, status: :created, location: @post }
      else
        format.html { render :new }
        format.json { render json: @post.errors, status: :unprocessable_entity }
      end
    end
  end

  def update
    respond_to do |format|
      if @post.update(post_params)
        format.html { redirect_to @post, notice: 'Post was successfully updated.' }
        format.json { render :show, status: :ok, location: @post }
      else
        format.html { render :edit }
        format.json { render json: @post.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @post.destroy
    respond_to do |format|
      format.html { redirect_to posts_url, notice: 'Post was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    def set_post
      @post = Post.find(params[:id])
    end

    def post_params
      params.require(:post).permit(:post)
    end
end

---

看起来在路由中应该是

users/omniauth\u回调

devise_for :users, :controllers => { omniauth_callbacks: "users/omniauth_callbacks", registrations: 'registrations' }

---

希望有帮助

您能否添加调用

rails routes

产生的相关部分？@SRack添加了“rails routes”输出，但不幸的是，没有：(