ruby-on-rails - Rails 返回 html 而不是 json

Question

我正在学习 Pro AngularJS 书籍的教程。我没有使用 deployd，而是在后端使用 rails。我正在尝试通过 /api/v1/products 使用 JSON 加载产品，但是当我打印输出结果时，响应是布局 html 而不是 json。

routes.rb

resources :store, only: :index
get '*app', to: 'store#index'

resources :products, only: :index
resources :sessions

namespace :api, constraints: {format: :json}, defaults: {format: :json} do
  namespace :v1 do
    resources :products
    resources :orders do
      resources :products
    end
  end
end

products_controller.rb

class Api::V1::ProductsController < ApplicationController

  respond_to :json

  def index
    @products = Product.all

    respond_with @products
  end
end

productListController.js

var plCtrl = this;
plCtrl.data = {};

$http.get("/api/v1/products")
.success(function(data){
  plCtrl.data.products = data;
  console.log(plCtrl.data.products);
})
.error(function(error){
  plCtrl.data.error = error;
});

开发日志

Started GET "/" for ::1 at 2015-11-08 10:16:39 -0600
  [1m[36mActiveRecord::SchemaMigration Load (29.5ms)[0m  [1mSELECT `schema_migrations`.* FROM `schema_migrations`[0m
Processing by StoreController#index as HTML
  Rendered store/index.html.slim within layouts/application (31.0ms)
  Rendered layouts/_navigation_links.html.slim (2.3ms)
  [1m[35mUser Load (0.5ms)[0m  SELECT  `users`.* FROM `users` WHERE `users`.`password_digest` = '$2a$10$FFHrMCASASl8cNMumUC8ZuNwTiZUmoe5i0i.jBW2./.h5iVlNxLZa' LIMIT 1
  Rendered layouts/_navigation.html.slim (70.6ms)
  Rendered layouts/_messages.html.slim (5.1ms)
Completed 200 OK in 916ms (Views: 898.1ms | ActiveRecord: 17.7ms)


Started GET "/" for ::1 at 2015-11-08 10:16:43 -0600
Processing by StoreController#index as HTML
  Rendered store/index.html.slim within layouts/application (0.0ms)
  Rendered layouts/_navigation_links.html.slim (0.0ms)
  [1m[36mUser Load (0.3ms)[0m  [1mSELECT  `users`.* FROM `users` WHERE `users`.`password_digest` = '$2a$10$FFHrMCASASl8cNMumUC8ZuNwTiZUmoe5i0i.jBW2./.h5iVlNxLZa' LIMIT 1[0m
  Rendered layouts/_navigation.html.slim (2.2ms)
  Rendered layouts/_messages.html.slim (0.0ms)
Completed 200 OK in 120ms (Views: 119.1ms | ActiveRecord: 0.3ms)


Started GET "/assets/users-539b1b2d248fcacaf845c897cae976a6.css?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/products-539b1b2d248fcacaf845c897cae976a6.css?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/application-8dd662d13284733bbe54eda20bb23cc6.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/jquery-cebd6aebb61826123f8c2609ef491120.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/jquery_ujs-e37afeff66df4b941f3d0e5103f67860.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/framework_and_overrides-59b1f67c44fcf715fcb2e3d8898788ac.css?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/stores-539b1b2d248fcacaf845c897cae976a6.css?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/application-5c74ddfe9ec142533cae4e72117a6749.css?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/angular-6e1e5cba38bc1135b8f51b46fe8b1817.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/angular-resource-750afd404dad9b9a65500978142d97e6.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/angular-ui-router-a716fee384609b743dd55ab0468bf63f.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/store/controllers/productListControllers-347157b211789b303302e8bcc711500b.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/angular-ui-router/angular-ui-router-a716fee384609b743dd55ab0468bf63f.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/store/app-5e5e1b9c4edcec361da040220caec84c.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/angular-resource/angular-resource-750afd404dad9b9a65500978142d97e6.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/angular/angular-6e1e5cba38bc1135b8f51b46fe8b1817.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/store/filters/customFilters-bfac291ac9405f569cf8cd59b6d64108.js?body=1" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/assets/store/templates/index-c54274a6b50c826831690b83850c84c1.html" for ::1 at 2015-11-08 10:16:43 -0600


Started GET "/api/v1/products" for ::1 at 2015-11-08 10:16:43 -0600
Processing by StoreController#index as HTML
  Parameters: {"app"=>"api/v1/products"}
  Rendered store/index.html.slim within layouts/application (0.0ms)
  Rendered layouts/_navigation_links.html.slim (0.0ms)
  [1m[35mUser Load (0.3ms)[0m  SELECT  `users`.* FROM `users` WHERE `users`.`password_digest` = '$2a$10$FFHrMCASASl8cNMumUC8ZuNwTiZUmoe5i0i.jBW2./.h5iVlNxLZa' LIMIT 1
  Rendered layouts/_navigation.html.slim (2.9ms)
  Rendered layouts/_messages.html.slim (0.1ms)
Completed 200 OK in 154ms (Views: 153.4ms | ActiveRecord: 0.3ms)

Answer 1

你需要做这样的事情

respond_to do |format|
  format.json { render :json => @products }
end

而不是你的respond_with @products