Question

可能重复：
Weird “406 not acceptable” error

以下代码生成 406 Not Acceptable 错误。

我的代码有什么问题？

  def remote_create
    @photo = Photo.new(params[:photo])

    respond_to do |format|
      if @photo.save
        # add @photo's thumbnail to last import tag
        format.js {
          render :update do |page|
            page.insert_html :bottom, 'polaroids' , :partial    => 'polaroid', :locals => {:photo => @photo}
          end 
        }
      else
        format.html
      end
    end
  end


Started POST "/photos/remote_create" for 127.0.0.1 at 2010-03-14 14:02:08
  Processing by PhotosController#remote_create as HTML
  Parameters: {"photo"=>{"photo"=>#<File:/var/folders/BT/BTpdsWBkF6myaI-sl3+1NU+++TI/-Tmp-/RackMultipart20100314-285-1y9eq1x-0>, "name"=>"4204497503_a0c43c561d.jpg"}}
  SQL (0.6ms)  INSERT INTO "photos" ("created_at", "filename", "height", "name", "photo_content_type", "photo_file_name", "photo_file_size", "photo_updated_at", "size", "updated_at", "width") VALUES ('2010-03-14 13:02:08.449499', NULL, NULL, '4204497503_a0c43c561d.jpg', 'application/octet-stream', '4204497503_a0c43c561d.jpg', 136710, '2010-03-14 13:02:08.446370', NULL, '2010-03-14 13:02:08.449499', NULL)
[paperclip] Saving attachments.
[paperclip] saving /Users/denisjacquemin/Documents/code/projects/photos/public/system/photos/224/original/4204497503_a0c43c561d.jpg
Completed in 101ms with 406

这是请求标题

Host    localhost:3000
User-Agent  Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6
Accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language en-us,en;q=0.5
Accept-Encoding gzip,deflate
Accept-Charset  ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive  115
Connection  keep-alive
Content-Type    multipart/form-data; boundary=AJAX-----------------------1268573300187
Referer http://localhost:3000/photos/
Content-Length  2058592
Cookie  remember_token=ea5af5a7c9a38d72bfd07756754af682a5d16cac; _photos_session=BAh7ByIQX2NzcmZfdG9rZW4iMW1yTUo3RkhzRlhPUXhsa0ptdDAyaUpDcXlTdlU0OHk2WHJhUzBzMmVQV1k9Ig9zZXNzaW9uX2lkIiViNzc0MGI2ZGMyYWNlNjEzZWEwYjVhM2U1Njg1MWE3YQ%3D%3D--1af96dbdbef595c48121e4f5c16298cadeef5b2a

Answer 1

我找到了解决方案，当我构建ajax请求时，我需要设置以下头参数

xhr.setRequestHeader("Accept", "text/javascript");

在设置此参数之前，请求标头为

Accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

现在请求标头看起来像这样

Accept  text/javascript

现在正常工作

goo更新：

以下是完整代码，setRequestHeader位于发送功能

中

希望有所帮助

在我看来

<%= link_to 'upload all', '/photos/remote_create', :remote => true, :method => 'POST', :multipart => 'droppedItems', :id => 'upload', :class => 'awesome small green' %>

在rails.js函数handleRemote（element）

中

else if (element.readAttribute('multipart') != null) {
  url    = element.readAttribute('data-url') || element.readAttribute('href');
  var uploader = new Uploader(null, $(element.readAttribute('multipart')));
  uploader.sendFiles(url);
  return;
}

在js实用程序文件中

sendFiles : function(url) {
    try {
      this.filesToUpload.forEach(function(file, index, all) {
          send(file, url);
      });
    } catch(e) {
        alert('send Error: ' + e);
    }
}

function send(file, url) {
    try {
        var xhr = new XMLHttpRequest;

        var boundary    = generateBoundary();

        var contentType = "multipart/form-data; boundary=" + boundary;

        xhr.upload.addEventListener("loadstart", (function(e){
            $('progress_'+file.name).update('0%');
        }), false);

        xhr.upload.addEventListener("progress", (function(e) {
              if (e.lengthComputable) {
                  var percentage = Math.round((e.loaded * 100) / e.total);
                  $('progress_'+file.name).update(percentage + '%');
              }
        }), false);

        xhr.onreadystatechange = function() {
            if (xhr.readyState === 4) {
                eval(xhr.responseText || '');
            }
        };

        xhr.open("POST", url, true);

        xhr.setRequestHeader("Content-Type", contentType);
        xhr.setRequestHeader("Accept", "text/javascript");

        var CRLF  = "\r\n";
        var request = "--" + boundary  + CRLF;

        request += 'Content-Disposition: form-data; ';
        request += 'name="' + 'photo[name]' + '"' + CRLF + CRLF;
        request += file.name + CRLF;

        request += "--" + boundary + CRLF;

        request += 'Content-Disposition: form-data; ';
        request += 'name="' + 'photo[photo]' + '"; ';
        request += 'filename="'+ file.fileName + '"' + CRLF;

        request += "Content-Type: application/octet-stream" + CRLF + CRLF;
        request += file.value + CRLF;
        request+= "--" + boundary + "--" + CRLF;

        xhr.sendAsBinary(request);

    } catch(e) {
        alert('send Error: ' + e);
    }
}

Answer 2

您是在设置特定格式（如使用jQuery，如{format: 'raw'}），还是设置请求标头mime类型（搜索setRequestHeader）？

最简单的方法是使用Firebug并查看您的请求是什么样的。

要尝试的其他事项，是否会在其他浏览器中出现同样的错误？

format.js生成406 Not Acceptable错误

2 个答案: