Ruby on rails 设计在使用Ajax登录时返回401

我有以下代码，非常简单，应该使用Desive将用户登录到我的应用程序中。如果使用HTML请求而不是XHR来完成，那么这实际上可以很好地工作。当我这样做的时候，XHR就产生了

          = form_for(@user, :url => session_path(@user), :remote => true) do |f|
            = f.label :email
            = f.text_field :email, :size => 15, :maxlength => 32
            = f.label :password
            = f.password_field :password, :size => 15, :maxlength => 32
            %br
            = f.submit "Sign in"

结果是：

Started GET "/" for 127.0.0.1 at 2012-12-04 13:24:44 -0800
Processing by HomeController#index as HTML
  Rendered home/_hello_page.html.haml (0.1ms)
  Rendered home/index.html.haml within layouts/application (1.9ms)
Completed 200 OK in 18ms (Views: 16.3ms | ActiveRecord: 0.4ms)

Started POST "/users/sign_in" for 127.0.0.1 at 2012-12-04 13:24:54 -0800
Processing by Devise::SessionsController#create as JS
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"1cGaycA20NMhK0fOwQyN8e3aSFwCHB6BZcLwmvKTI3U=", "user"=>{"email"=>"obscured@someplace.com", "password"=>"[FILTERED]"}, "commit"=>"Sign in"}
Completed 500 Internal Server Error in 65ms

ActionView::MissingTemplate (Missing template devise/sessions/create, devise/create, application/create with {:locale=>[:en], :formats=>[:js, :html], :handlers=>[:erb, :builder, :coffee, :haml]}. Searched in:
  * "/Users/sxross/Developer/iPhoneApps/motion/whos_here/whos_here_server/app/views"
  * "/Users/sxross/.rvm/gems/ruby-1.9.3-p327@whos_here_server/gems/devise-2.1.2/app/views"
):

一切都完全符合我的预期，很明显，Deave:：SessionController#create as JS的

处理过程告诉接收控制器“将我想要的JSON寄回”。所以问题是，为什么Deave控制器试图呈现一个模板而不是JSON，我能做些什么来修复它

谢谢
 视图/设计/会话中缺少create.js.[erb | haml]文件

当您发送远程登录请求时，该请求由designe:：sessioncontroller#create完成，如果您没有覆盖它

respond_with resource, :location => after_sign_in_path_for(resource)

将查找create.js.erb。
我通常只有

window.location = "<%= root_url %>"

在config/initializers/develope.rb中运行

对于我自己的情况，我已使用以下命令覆盖会话控制器：

@resource = warden.authenticate!(:scope => resource_name, :recall => "sessions#failure")
sign_in(resource_name, @resource)
respond_to do |format|
  format.html { respond_with @resource, :location => after_sign_in_path_for(@resource) }
  format.js
end

如果身份验证失败，我将使用失败方法，并在failure.js.erb中对其进行处理，以向用户显示
您是否尝试过查看此信息？是 啊是的。我不知道有什么神奇之处，但当我使用jQuery.ajax和正确的accept类型以及all时，我能够得到我的200返回代码。我不会回答这个问题，因为我没有真正的“答案”。看起来应该更容易些。不过，谢谢你的推荐！
@resource = warden.authenticate!(:scope => resource_name, :recall => "sessions#failure")
sign_in(resource_name, @resource)
respond_to do |format|
  format.html { respond_with @resource, :location => after_sign_in_path_for(@resource) }
  format.js
end