Question

我在rails中遇到了问题。

查看（index.html.erb）

<div id="container" style="margin:0 auto;">
  <div style="float:left; height: 300px; width: 300px" align="center">

    <%= form_tag("/java/select", :method => "post", :remote => true) do %>
      Deivce1 <%= radio_button_tag "devices", "1"%><br>
      Deivce2 <%= radio_button_tag "devices", "2"%><br>
      Deivce3 <%= radio_button_tag "devices", "3"%><br>

      <%= submit_tag "On/Off" %>
    <% end %>

  </div>

</div>

<div id="statelist"></div>

控制器（java_controller.rb）

class JavaController < ApplicationController

skip_before_filter :verify_authenticity_token

    def select
      @device = params[:devices]
      respond_to do|format|
         format.js
      end
    end
end

js文件（select.js.erb）

$('#statelist').empty().append('<%= j render 'statelist'%>');

html文件（_statelist.html.erb）
```
Selected device is <%= @device %>
```

根文件（rootes.rb）

root "java#index"
post "java/select" => "java#select"

我认为我拥有操作ajax的所有组件。另外，我通常提前使用类似的语法。

然而，在这种情况下，当我点击＆＃34;开/关＆＃34;按钮，网页中出现Unknownformat错误消息。

此错误表示＆＃34; respond_to do | format |＆＃34;控制器线。

问题是什么？谢谢你的关注。

日志...

Started POST "/java/select" for 127.0.0.1 at 2014-08-14 17:48:55 +0900
Processing by JavaController#select as HTML
  Parameters: {"utf8"=>"✓", "devices"=>"2", "commit"=>"On/Off"}
Completed 406 Not Acceptable in 6ms

ActionController::UnknownFormat (ActionController::UnknownFormat):
  app/controllers/java_controller.rb:14:in `select'


  Rendered /usr/lib/jruby/jruby-1.7.13/lib/ruby/gems/shared/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_source.erb (6.0ms)
  Rendered /usr/lib/jruby/jruby-1.7.13/lib/ruby/gems/shared/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_trace.html.erb (14.0ms)
  Rendered /usr/lib/jruby/jruby-1.7.13/lib/ruby/gems/shared/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/_request_and_response.html.erb (19.0ms)
  Rendered /usr/lib/jruby/jruby-1.7.13/lib/ruby/gems/shared/gems/actionpack-4.1.4/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (291.0ms)

Answer 1

只需删除

即可

 respond_to do|format|
     format.js
  end

块。在您的情况下，它将根据rails默认值自动加载select.js部分。我不确定，但也许你需要改变路径

/java/select.js

也

rails4中的ActionController UnknownFormat错误

1 个答案: