如何在Android HttpPost中使用MultipartEntity上传图片？

Question

使用MultipartEntity不上载图像。

给出状态码200，但图像没有在服务器端更新。

String responseBody; 
      HttpClient client = new DefaultHttpClient(); 
      HttpPost request = new HttpPost(
        "http__zz/upload_picture?key=abc&property_id=10"); 

      MultipartEntity entity = new MultipartEntity(
        HttpMultipartMode.BROWSER_COMPATIBLE); 

      File file = new File(Environment.getExternalStoragePublicDirectory(
        Environment.DIRECTORY_DCIM).toString() 
        + "/Camera/Test.jpg"); 
      ContentBody encFile = new FileBody(file, "image/png"); 

      entity.addPart("picture", encFile); 

      request.setEntity(entity); 

      ResponseHandler<String> responsehandler = new BasicResponseHandler(); 
      responseBody = client.execute(request, responsehandler); 

      if (responseBody != null && responseBody.length() > 0) { 
       Log.w("TAG", "Response image upload" + responseBody); 

      } 

Answer 1

为什么不尝试发送它为base64编码的字符串？

Answer 2

尝试使用的ByteArrayBody代替FileBody：

File file = new File(Environment.getExternalStoragePublicDirectory(
        Environment.DIRECTORY_DCIM).toString() 
        + "/Camera/Test.jpg"); 
Bitmap b = BitmapFactory.decodeFile(file; 
ByteArrayOutputStream bao = new ByteArrayOutputStream(); 
b.compress(CompressFormat.JPEG, 100, bao); 

ByteArrayBody body = new ByteArrayBody(bao.toByteArray(), "image/jpeg", "picture"); 
entity.addPart("picture", body); 

Answer 3

做到这一点的最好办法是实施IntentService并用广播通知意向状态。请查看从git的工作此代码为我

https://github.com/alexbbb/android-upload-service