如何在Android上以JSON发送文件？

要在服务器上发送文本文件或图像文件，可以使用MultiPartEntity。

DefaultHttpClient localDefaultHttpClient = new DefaultHttpClient();      FileBody localFileBody = new FileBody(new File(this.picturePath), "image/jpg");      HttpPost localHttpPost = new HttpPost("http://website.com/path/....");      MultipartEntity localMultipartEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);      try      {        Log.d("picturepath", this.picturePath);        localMultipartEntity.addPart("Email", new StringBody("emailid@gmail.com"));        localMultipartEntity.addPart("password", new StringBody("password"));        localMultipartEntity.addPart("phone", new StringBody("9875......."));        localMultipartEntity.addPart("profilepicture", localFileBody);        localHttpPost.setEntity(localMultipartEntity);        HttpResponse localHttpResponse = localDefaultHttpClient.execute(localHttpPost);        System.out.println("responsepre" + localHttpResponse.getStatusLine().getStatusCode());}catch (Exception e)      {        Log.d("exception", e.toString());      }

这是可行的，因为此代码是我的Running项目的一部分。