将文件从Android上载到Web服务器

将文件（图像）从android上传到Web服务器（我使用codeingniter）的最佳方式是什么。在谷歌我看到了一些使用CustomMultipartEntity、Base64等的方法，但哪种方法更好呢？我可以同时将图像和json上传到Web服务器吗？

是的，您可以通过使用Base64字符串转换图像来上传图像

我最喜欢的一段代码

Android应用程序上传位置

我压缩图像（重新调整大小）只是为了保存（最后的代码）

*调整代码大小*

Bitmap bitmap = resizeBitMapImage1(exsistingFileName, 800, 600);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG,30, stream);
StrictMode.ThreadPolicy policy = new     StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);

ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("image_data", Base64.encodeBytes(stream.toByteArray())));

// image_str = null;
stream.flush();
stream.close();
bitmap.recycle();
nameValuePairs.add(new BasicNameValuePair("FileName", FileName));

String url = "http://www.xyz.com/upload.aspx";
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response1 = httpclient.execute(httppost);
Log.i("DataUploaderOffline_Image ","Status--> Completed");

 Response.ContentType = "text/plain";
 string c = Request.Form["image_data"];
 string FileName = Request.Form["FileName"];
 byte[] bytes = Convert.FromBase64String(c);

 System.Drawing.Image image;
 using (MemoryStream ms = new MemoryStream(bytes))
 {
      image = System.Drawing.Image.FromStream(ms);
      image.RotateFlip(System.Drawing.RotateFlipType.Rotate90FlipNone);
      String Fname =   FileName + ".jpeg";
      image.Save(Server.MapPath("Image\\" + Fname), System.Drawing.Imaging.ImageFormat.Jpeg);
      Response.End();
 }

public static Bitmap resizeBitMapImage1(String filePath, int targetWidth,
        int targetHeight) {
    Bitmap bitMapImage = null;
    try {
        Options options = new Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(filePath, options);
        double sampleSize = 0;
        Boolean scaleByHeight = Math.abs(options.outHeight - targetHeight) >= Math
                .abs(options.outWidth - targetWidth);
        if (options.outHeight * options.outWidth * 2 >= 1638) {
            sampleSize = scaleByHeight ? options.outHeight / targetHeight
                    : options.outWidth / targetWidth;
            sampleSize = (int) Math.pow(2d,
                    Math.floor(Math.log(sampleSize) / Math.log(2d)));
        }
        options.inJustDecodeBounds = false;
        options.inTempStorage = new byte[128];
        while (true) {
            try {
                options.inSampleSize = (int) sampleSize;
                bitMapImage = BitmapFactory.decodeFile(filePath, options);
                break;
            } catch (Exception ex) {
                try {
                    sampleSize = sampleSize * 2;
                } catch (Exception ex1) {

                }
            }
        }
    } catch (Exception ex) {

    }
    return bitMapImage;
}