Rails 4 newbe：路由错误-

Question

我对Rails很陌生。 不知道如何解决它。 我什至无法启动一个简单的Rails应用程序！

Environment:
    Windows 7
    Ruby 2.1.0
    Rails 4.2.3

第一：我运行了generate命令

D：\\ railprojects \\ blog> rails生成控制器页面索引

的routes.rb

    Rails.application.routes.draw do
  get 'pages/index'

end

pages_controller.rb

class PagesController < ApplicationController
  def index
  end
end

index.html.erb

<h1>Pages#index</h1>
<p>Find me in app/views/pages/index.html.erb</p>

我收到以下错误。

http://127.0.0.1:3000/pages

Routing Error
No route matches [GET] "/pages"

Rails.root: D:/railprojects/blog

Application Trace | Framework Trace | Full Trace
Routes

Routes match in priority from top to bottom

Helper  HTTP Verb   Path    Controller#Action
Path / Url          
pages_index_path    GET /pages/index(.:format)  pages#index
Request

Parameters:

None

截图 http://i.stack.imgur.com/06W5e.jpg

请帮忙。 如果您需要更多信息，请告诉我。

本地主机：3000 /页/指数

更改为-获取“ pages＃index”

Routing Error
No route matches [GET] "/pages"

Rails.root: D:/railprojects/blog

Application Trace | Framework Trace | Full Trace
Routes

Routes match in priority from top to bottom

You don't have any routes defined!

Please add some routes in config/routes.rb.
For more information about routes, please see the Rails guide Rails Routing from the Outside In.
Helper  HTTP Verb   Path    Controller#Action
Path / Url          

更改为-resources：pages

ExecJS::ProgramError in Pages#index
Showing D:/railprojects/blog/app/views/layouts/application.html.erb where line #6 raised:

TypeError: Object doesn't support this property or method
Rails.root: D:/railprojects/blog

Application Trace | Framework Trace | Full Trace
app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__2066577970_70340560'
Request

Parameters:

None
Toggle session dump
Toggle env dump
GATEWAY_INTERFACE: "CGI/1.1"
HTTP_ACCEPT: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
HTTP_ACCEPT_ENCODING: "gzip, deflate, sdch"
HTTP_ACCEPT_LANGUAGE: "en-US,en;q=0.8,bn;q=0.6"
REMOTE_ADDR: "127.0.0.1"
REMOTE_HOST: "127.0.0.1"
SERVER_NAME: "localhost"
SERVER_PROTOCOL: "HTTP/1.1"




Rails.application.routes.draw do
  get 'pages', to: 'pages#index'
end



ExecJS::ProgramError in Pages#index
Showing D:/railprojects/blog/app/views/layouts/application.html.erb where line #6 raised:

TypeError: Object doesn't support this property or method
Rails.root: D:/railprojects/blog

Application Trace | Framework Trace | Full Trace
app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__2066577970_70340560'
Request

Parameters:

None
Toggle session dump
Toggle env dump
GATEWAY_INTERFACE: "CGI/1.1"
HTTP_ACCEPT: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
HTTP_ACCEPT_ENCODING: "gzip, deflate, sdch"
HTTP_ACCEPT_LANGUAGE: "en-US,en;q=0.8,bn;q=0.6"
REMOTE_ADDR: "127.0.0.1"
REMOTE_HOST: "127.0.0.1"
SERVER_NAME: "localhost"
SERVER_PROTOCOL: "HTTP/1.1"
Response

Headers:

None

变成

 Rails.application.routes.draw do
      get 'pages', to: 'pages#index'
    end  

/

ExecJS::ProgramError in Pages#index
Showing D:/railprojects/blog/app/views/layouts/application.html.erb where line #6 raised:

TypeError: Object doesn't support this property or method
Rails.root: D:/railprojects/blog

Application Trace | Framework Trace | Full Trace
app/views/layouts/application.html.erb:6:in `_app_views_layouts_application_html_erb__2066577970_70340560'
Request

Parameters:

None
Toggle session dump
Toggle env dump
GATEWAY_INTERFACE: "CGI/1.1"
HTTP_ACCEPT: "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"
HTTP_ACCEPT_ENCODING: "gzip, deflate, sdch"
HTTP_ACCEPT_LANGUAGE: "en-US,en;q=0.8,bn;q=0.6"
REMOTE_ADDR: "127.0.0.1"
REMOTE_HOST: "127.0.0.1"
SERVER_NAME: "localhost"
SERVER_PROTOCOL: "HTTP/1.1"
Response

Headers:

None

Answer 1

尝试

localhost:3000/pages/index

或者如果您想使用此本地主机进入索引页面：3000 / pages更改路由

resources :pages

Answer 2

你应该指出

http://localhost:3000/pages/index

在您的浏览器中采取适当的措施。

这是因为您的路由配置：

get 'pages/index'

如果您希望能够指向/pages ，则必须将其重新配置为如下所示：

get 'pages', to: 'pages#index'

您可以在这里找到有关Rails路由的更多信息；

祝好运！

UPDATE

config/routes.rb的整个内容应如下所示：

Rails.application.routes.draw do
  get 'pages', to: 'pages#index'
end

Answer 3

首先，不要使用Windows在Rails中进行开发……您会头疼不已。 相信我。

如果您不想安装Linux（如ubuntu），则可以使用vagrant（ https://www.vagrantup.com/ ）。

关于您的错误，您定义了pages/index路径，但是您正在尝试访问pages路径。

您可以定义pages路由，例如：

get 'pages', to: 'pages#index'

这样，您可以通过以下方式访问您的页面： http://localhost:3000/pages ，它将把您发送到PagesController和index操作。

关于另一个错误：Pages＃index中的ExecJS :: ProgramError显示...

• 您需要一个JavaScript运行时，例如：NodeJS-已安装https://nodejs.org/ 。