通过Webclient的Windowsphone到PHP通信

Question

我想上传一个我选择的图片与PhotoChooserTask。选择本身工作良好，我可以打开图像。我还将其解码为Base64 (Works)。

由于我找不到关于如何在windowsphone上使用httpwebrequest的任何工作示例，所以我尝试了以下方法。

    private void photoChooserTask_Completed(object sender, PhotoResult e)
    {
        if (e.TaskResult == TaskResult.OK)
        {

            //Code to display the photo on the page in an image control named myImage.
            System.Windows.Media.Imaging.BitmapImage bmp = new System.Windows.Media.Imaging.BitmapImage();
            bmp.SetSource(e.ChosenPhoto);
            MyImage.Source = bmp;

            String str = BitmapToByte(MyImage);

            String url = "http://klopper.puppis.uberspace.de/php/app/image.php?image="+ str;

            LoadSiteContent(url);

        }


    }

其余的代码运行良好。

我明白了: System.IO.FileNotFoundException

如果我把str改为"test“，它就能工作了。

问题是，字符串太长了吗？

Answer 1

 private void task_Completed(object sender, PhotoResult e)
    {
        if (e.TaskResult != TaskResult.OK)
            return;

        const int BLOCK_SIZE = 4096;

        Uri uri = new Uri("http://localhost:4223/File/Upload", UriKind.Absolute);

        WebClient wc = new WebClient();
        wc.AllowReadStreamBuffering = true;
        wc.AllowWriteStreamBuffering = true;

        // what to do when write stream is open
        wc.OpenWriteCompleted += (s, args) =>
        {
            using (BinaryReader br = new BinaryReader(e.ChosenPhoto))
            {
                using (BinaryWriter bw = new BinaryWriter(args.Result))
                {
                    long bCount = 0;
                    long fileSize = e.ChosenPhoto.Length;
                    byte[] bytes = new byte[BLOCK_SIZE];
                    do
                    {
                        bytes = br.ReadBytes(BLOCK_SIZE);
                        bCount += bytes.Length;
                        bw.Write(bytes);
                    } while (bCount < fileSize);
                }
            }
        };

        // what to do when writing is complete
        wc.WriteStreamClosed += (s, args) =>
        {
            MessageBox.Show("Send Complete");
        };

        // Write to the WebClient
        wc.OpenWriteAsync(uri, "POST");
    }

参考to post image file in windows phone 7 application