在Android中使用MultipartEntityBuilder和HTTP Client发布JSON对象以及文件的标准

Question

我能够使用 StringEntity 发布 json 对象

httppost.setEntity（newStringEntity（obj.toString（）））;HttpResponse response = httpclient.execute（httppost）;

但是我必须发布一个文件以及json数据，我找到了很多使用MultipartEntity的答案，但它已被弃用，请向我推荐任何使用MultipartEntityBuilder的教程或示例代码，谢谢
这是我的代码

Thread t = new Thread(new Runnable() {
@Override
public void run() {
JSONObject jsonobject = null;
String requestURL = "URL";
try {
jsonobject = new JSONObject("{"first": "Test","last": "User","name": "Test 
User","email": "[e-mail]","birthdate": "1984-01-01","Account": {"username": "t1r0123425899","password": "testuser1234567899"},"Address": {"postal_code": "11230","state_or_province": "NY","country": "US"}}");
                } catch (JSONException e1) {
                    // TODO Auto-generated catch block
                    e1.printStackTrace();
                }

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(requestURL);
httppost.addHeader("Content-Type", "application/json");
httppost.addHeader("X-ConsumerApiClient","0f8f0a024d6344e429f5ee96aa66fbfb5c3973b5");
httppost.addHeader("X-ConsumerApiSignature",
                    "qmt8aEAGRQUvldkDnHw8zgn1kRYuXRDwvmo3TpWlCtE=");
MultipartEntityBuilder multipartEntity = MultipartEntityBuilder.create();
                multipartEntity.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);
multipartEntity.addPart("file", new FileBody(new
                 File(fileName)));
multipartEntity.addPart("Person", jsonobject.toString());
httppost.setEntity(multipartEntity.build());

try {
     HttpResponse response = httpclient.execute(httppost);
     Log.d("status", "" + response.getStatusLine());
     Log.d("response",EntityUtils.toString(response.getEntity()));
    } catch (ClientProtocolException e) {
    } catch (IOException e) {

}
}
});
t.start();

Answer 1

我找到了解决方案，我们可以像下面这样拆分json对象并作为键值发送

  multipartEntity.addPart("data[Asset][file]", new FileBody(file,
                            ContentType.APPLICATION_OCTET_STREAM, "filename.png"));
                    multipartEntity.addTextBody("data[Person][first]", "kk");
                    multipartEntity.addTextBody("data[Person][email]",
                            "[e-mail]");
                    multipartEntity.addTextBody("data[Person][birthdate]",
                            "1984-01-01");
                    multipartEntity.addTextBody("data[Person][Account][username]",
                            "savita123458");
                    multipartEntity.addTextBody("data[Person][Account][password]",
                            "testuser12345678");
        httppost.setEntity(multipartEntity.build());
                    try {
                        HttpResponse response = httpclient.execute(httppost);
                        Log.d("status", response.getStatusLine().toString());
                        Log.d("data", EntityUtils.toString(response.getEntity()));
                    } catch (ClientProtocolException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace(); // TODO Auto-generated catch block
                    }

Answer 2

我使用

http://loopj.com/android-async-http/做了类似的事情，可以在您的线程中同步使用

Answer 3

尝试这样做。

multipartEntity.addBinaryBody("file", file, ContentType.create("application/octet-stream"), file.getName());
multipartEntity.addTextBody("json", jsonobject.toString(),  ContentType.DEFAULT_BINARY);
httppost.setEntity(multipartEntity.build());