Rails 4 新人：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

首先：我运行生成命令

D:\railprojects\blog>rails 生成控制器页面索引

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。

localhost:3000/pages/index

改为-得到'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

将其更改为 - 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

改为

 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

你应该点

http://localhost:3000/pages/index

在您的浏览器中进行适当的操作。

这是因为你的路由配置：

get 'pages/index'

如果您希望能够指向 /pages，您必须将其重新配置为：

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

您可以找到更多关于 Rails 路由 here;

祝你好运！

更新

config/routes.rb 的全部内容应该如下所示：

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

Answer 2

尝试

localhost:3000/pages/index

或者，如果您想使用此 localhost:3000/页面更改路线进入索引页面

resources :pages

Answer 3

首先，不要用Windows在Rails中开发...你会很头疼的。相信我。

如果你不想安装Linux（比如ubuntu），你可以使用vagrant（https://www.vagrantup.com/）。

关于您的错误，您定义了 pages/index 路由，但您正在尝试访问 pages 路由。

你能做的就是定义pages路线，例如：

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

这样，您就可以通过以下方式访问您的页面：http://localhost:3000/pages这会将您转到 PagesController 和 index 操作。

关于另一个错误：ExecJS::ProgramError in Pages#index Showing ...

您需要 javascript 运行时，例如：安装了 NodeJS - https://nodejs.org/。

Rails 4 新人：路由错误 -

Rails 4 newbe : Routing Error -

ruby

windows

ruby-on-rails

ruby-on-rails-4

ruby-2.1