下面是访问过程中产生的日志
代码语言：javascript复制Started GET "/welcome/index" for 192.168.100.1 at 2016-04-22 20:16:03 0800
Cannot render console from 192.168.100.1! Allowed networks: 127.0.0.1, ::1, 127.0.0.0/127.255.255.255
Processing by WelcomeController#index as HTML
Rendered welcome/index.html.erb within layouts/application (0.2ms)
Completed 200 OK in 44ms (Views: 42.9ms | ActiveRecord: 0.0ms)资源的CRUD
资源的创建、读取、更新和删除操作，简称为 CRUD。
我们来尝试创建资源
添加资源到 route
代码语言：javascript复制[root@h202 blog]# vim config/routes.rb
[root@h202 blog]# grep -v ' #' config/routes.rb | grep -v "^$"
Rails.application.routes.draw do
resources :articles
root 'welcome#index'
end
[root@h202 blog]# rake routes
Prefix Verb URI Pattern Controller#Action
articles GET /articles(.:format) articles#index
POST /articles(.:format) articles#create
new_article GET /articles/new(.:format) articles#new
edit_article GET /articles/:id/edit(.:format) articles#edit
article GET /articles/:id(.:format) articles#show
PATCH /articles/:id(.:format) articles#update
PUT /articles/:id(.:format) articles#update
DELETE /articles/:id(.:format) articles#destroy
root GET / welcome#index
[root@h202 blog]#结果展示了当前的一系列 Restfull API 与 Controller#Action 的对应关系
我们尝试访问其中的一个链接，/articles/new 得到如下反馈
报错的原因为没有 ArticlesController
创建控制器
代码语言：javascript复制[root@h202 blog]# bin/rails g controller articles
Running via Spring preloader in process 12913
create app/controllers/articles_controller.rb
invoke erb
create app/views/articles
invoke test_unit
create test/controllers/articles_controller_test.rb
invoke helper
create app/helpers/articles_helper.rb
invoke test_unit
invoke assets
invoke coffee
create app/assets/javascripts/articles.coffee
invoke scss
create app/assets/stylesheets/articles.scss
[root@h202 blog]# ll app/controllers/articles_controller.rb
-rw-r--r-- 1 root root 53 Apr 22 20:49 app/controllers/articles_controller.rb
[root@h202 blog]# cat app/controllers/articles_controller.rb
class ArticlesController < ApplicationController
end
[root@h202 blog]# 
