我試圖通過http post方法從android設備上傳圖像文件到rails服務器。 但張貼圖像無法正常工作。更具體地說,post參數(包括圖像文件)似乎沒有被正確發送。從Android(使用Android異步Http客戶端)上傳圖像到rails服務器(使用回形針)
我正在使用Android異步Http客戶端(http://loopj.com/android-async-http/)從Android發佈圖像,發佈圖像的代碼是這樣的。
public static void postImage(){
RequestParams params = new RequestParams();
params.put("picture[name]","MyPictureName");
params.put("picture[image]",File(Environment.getExternalStorageDirectory().getPath() + "/Pictures/CameraApp/test.jpg"));
AsyncHttpClient client = new AsyncHttpClient();
client.post("http://x.x.x.x:3000/pictures/", params, new AsyncHttpResponseHandler() {
@Override
public void onSuccess(String response) {
Log.w("async", "success!!!!");
}
});
}
至於軌回形針應用程序,我只是用腳手架和生成的模型命名爲「照片」並在其上添加回形針附加文件。模型和控制器(接收請求)如下所示。
模型
class Picture < ActiveRecord::Base
attr_accessible :name, :image
has_attached_file :image,
:styles => { :original => "480x480>", :thumbnail => "100x100>" },
:path => ':rails_root/public/system/pictures/image/:id_partition/:style_:filename'
end
控制器
# POST /pictures
# POST /pictures.json
def create
@picture = Picture.new(params[:picture])
respond_to do |format|
if @picture.save
format.html { redirect_to @picture, notice: 'Picture was successfully created.' }
format.json { render json: @picture, status: :created, location: @picture }
else
format.html { render action: "new" }
format.json { render json: @picture.errors, status: :unprocessable_entity }
end
end
end
當接收到請求, 「軌服務器」 控制檯說像下面
Started POST "/pictures/" for y.y.y.y at 2012-09-03 18:23:00 +0900
Processing by PicturesController#create as HTML
Parameters: {"picture"=>{"name"=>"PictureName"}}
(0.1ms) begin transaction
SQL (0.5ms) INSERT INTO "pictures" ("album_id", "created_at", "image_content_type", "image_file_name", "image_file_size", "image_updated_at", "name", "updated_at", "user_id") VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?) [["album_id", nil], ["created_at", Mon, 03 Sep 2012 09:23:00 UTC +00:00], ["image_content_type", nil], ["image_file_name", nil], ["image_file_size", nil], ["image_updated_at", nil], ["name", "PictureName"], ["updated_at", Mon, 03 Sep 2012 09:23:00 UTC +00:00], ["user_id", nil]]
[paperclip] Saving attachments.
(11.0ms) commit transaction
Redirected to http://x.x.x.x:3000/pictures/10
Completed 302 Found in 15ms (ActiveRecord: 11.6ms)
正如你所看到的,僅是一個paramater並且未接收到作爲原始圖像數據的「圖像[圖像]」參數。誰能幫我?
謝謝。我正在尋找類似的問題。 –
我得到{ 「地位」: 「錯誤」, 「錯誤」:{ 「image_content_type」: 「無效」], 「形象」: 「無效」]}}。有人有過這個問題嗎? –