$http.post 在 Rails 路由中变为 [OPTIONS]

Posted 2023-03-04

【中文标题】$http.post 在 Rails 路由中变为 [OPTIONS]

【英文标题】：$http.post becomes [OPTIONS] in Rails route

【发布时间】：2015-11-11 01:57:57

【问题描述】：

这是我的 Angular 文件：

registrationModule.config(['$httpProvider', function($httpProvider) 
        $httpProvider.defaults.useXDomain = true;
        delete $httpProvider.defaults.headers.common['X-Requested-With'];
    
]);

registrationModule.controller("registrationController",function($scope,$http)
        $http.get("http://localhost:3000/logins/workspace_list?token=tempore").
        success(function(response) 
            $scope.workspaces=response;
        );

        $scope.register=function()
            var postData=$scope.module_entry;

            if(postData.password==postData.repassword)
                $http.post('http://localhost:3000/users',postData);
            
            else 
                alert("Password not correctly verified");


            
        

);

我把它放在我的 Rails 应用程序控制器中（我是 API 新手，所以我在拼凑我在 Google 搜索中找到的信息）

  class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception
  before_filter :cors_preflight_check
  after_filter :cors_set_access_control_headers

  def cors_set_access_control_headers
    headers['Access-Control-Allow-Origin'] = '*'
    headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'
    headers['Access-Control-Allow-Headers'] = 'Origin, Content-Type, Accept, Authorization, Token'
    headers['Access-Control-Max-Age'] = "1728000"
  end

  def cors_preflight_check
    if request.method == 'OPTIONS'
      headers['Access-Control-Allow-Origin'] = '*'
      headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'
      headers['Access-Control-Allow-Headers'] = 'Content-Type,X-Requested-With, X-Prototype-Version, Token'
      headers['Access-Control-Max-Age'] = '1728000'

      render :text => '', :content_type => 'text/plain'
    end
  end
end

最后这是我在用户控制器中放置的：

class UsersController < ApplicationController

def index

end

def show
    @user=User.where('username=? and password=?',params[:username],params[:password])
    unless(!@user) do
        return @user        

    end

    render nothing, :status=>400


end 

def create

    unless(!authenticate()) then
        @user=User.new
        @user.username=@registration.username
        @user.password=@registration.password
        @user.token=(0...8).map  (65 + rand(26)).chr .join
        @user.workspace=Workspace.find(@registration.workspace)
        @user.save

        render json: @user

    end


    render :html, :status=>400


end

def authenticate

    @registration=JSON.parse params[:module_entry]

    @logged_workspace=@registration.workspace
    @logged_token=@registration.token

    @verify=Workspace.where('id=? and token=?',@logged_workspace,@logged_token)

    unless @verify then
        return true
    end

    return false



end

结束

这以“路由 [OPTIONS] 没有匹配项”/users 结束。我读到这是一个 CORS 问题，我已经尝试了所有建议，但最终还是这样。我哪里错了？

【参考方案1】：

我正在使用这个 gem https://github.com/cyu/rack-cors 对我来说很好用