我一直在努力找出如何通过post请求的主体传递文件。我在网上试了一些东西，但没有什么能和我的用例完全匹配。
这是我的服务器代码的邮递员屏幕截图：

所以，正如你所看到的，“photo”在body部分是一个键（文件），值是一个图像文件。这是一个post请求，在查询成功时不返回任何响应（只显示创建时的状态，如屏幕截图所示）[另请注意：它需要auth token作为header param，userid作为path param）
终结点代码：

static final String ENDPOINT_UPLOAD_PROFILE_PHOTO= BuildConfig.BASE_URL
            + "/service-profile/v1/member/photo/{userId}";

@Override
public Single<JSONObject> doUploadPhoto(String userId, File filepath) {

    Rx2ANRequest.MultiPartBuilder post = Rx2AndroidNetworking.upload(ApiEndPoint.ENDPOINT_UPLOAD_PROFILE_PHOTO)
                     .addMultipartFile("photo",filepath)

                     .addHeaders("Authorization", mApiHeader.getFormattedProtectedApiHeader())
                     .addHeaders("content-type", "multipart/form-data")
                     .setPriority(Priority.HIGH)

                     .addMultipartParameter("photo",filepath.getAbsolutePath())
                     .addPathParameter("userId",userId);


    return post.build()
            .getObjectSingle(JSONObject.class);

        File file = new File(AppPreferencesHelper.getInstance().getPhotoFile());
//preferences has the path of the file , something like : /storage/emulated/0/DCIM/1566415330315.jpg 

getCompositeDisposable().add(getDataManager().updateCurrentUserPhotoUploadApiCall(file)
                    .subscribeOn(getSchedulerProvider().io())
                    .observeOn(getSchedulerProvider().ui())
                    .subscribe(response -> {

                        Log.d("fileupload", "it is successful" + response);
                        if (!isViewAttached()) {
                            return;
                        }

                    }, throwable -> {
                        if (!isViewAttached()) {
                            return;
                        }
                        Log.d("fileupload", "error: ");

                        getMvpView().hideLoading();

                        // handle the profile retrieval error here
                        //getMvpView().showDialog(R.string.unknown_error, R.string.unknown_error_message);

                        if (throwable instanceof ANError) {
                            ANError anError = (ANError) throwable;
                            Log.d("fileupload", "error: " + anError.getErrorCode());

                            handleApiError(anError);
                        }
                    }));

@Override
    public Single<JSONObject> updateCurrentUserPhotoUploadApiCall(File file) {
        return mApiHelper.doUploadPhoto(mPreferencesHelper.getCurrentUserId(), file);
    }

Rx2ANRequest.PostRequestBuilder post = Rx2AndroidNetworking.post(processUrl(ApiEndPoint.ENDPOINT_UPLOAD_PROFILE_PHOTO)) // Please note : processUrl(ApiEndPoint.ENDPOINT_UPLOAD_PROFILE_PHOTO)) = https://myapps.com/service-profile/v1/member/photo/{userId}
                .addHeaders("Authorization", mApiHeader.getFormattedProtectedApiHeader())
                .addPathParameter("userId", userId)
          .addBodyParameter("photo",filepath.getAbsolutePath());

OkHttpClient client = new OkHttpClient();

MediaType mediaType = MediaType.parse("multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW");
RequestBody body = RequestBody.create(mediaType, "------WebKitFormBoundary7MA4YWxkTrZ\r\nContent-Disposition: form-data; name=\"photo\"; filename=\"1ab6ef77b355e9acd7cc9b82b5c8ec4f.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW--");
Request request = new Request.Builder()
  .url("https://myapps.com/api/service-profile/v1/member/photo/9ea899b8-b271-486b-ae64-443a17f06a39")
  .post(body)
  .addHeader("content-type", "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW")
  .addHeader("Content-Type", "application/x-www-form-urlencoded")
  .addHeader("Authorization", "Bearer eyJraWQiOiJXZ3NucHRZekZYMnZsRTJ2TEJlUFpjSlJ4TU93SFRqcGkydDZAwdW03bzU5d2xRTFkxUU1HMGg3Iiwic2NwIjpbIm9mZmxpbmVfYWNjZXNzIiwicHJvZmlsZSIsIm9wZW5pZCIsIm1lbWJlciIsImVtYWlsIl0sInN1YiI6InZhcmFuaGErd3BkZXZsYUBjbnZ3cC5jb20iLCJtZW1iZXIucmVhZCI6dHJ1ZSwibWVtYmVyLndyaXRlIjp0cnVlfQ.LQhea6roQyQNIRnb3XWVuQZjoid2yn7TT-cgbdDeUnbMCUtFnOiHKPOLo_zpRr0bB429-yuLeSLdLjj_mF-PESbr0SfvNj01N-AWtYvyn9gEvcqS3hHHzPI44RDYkU8CtenByxwDBLUTlrdAGW7Xmi-UtGdd2_kaM8zkZoVWRS8dbymCVfZyoYr7DeR9hFZtD8RCtYRMRJrgQGZoMv7_1oCJyo8lAWuMpUmZfsEscOOw44hFoNADv221l70mbTIb-XwA")
  .addHeader("User-Agent", "PostmanRuntime/7.15.2")
  .addHeader("Accept", "*/*")
  .addHeader("Cache-Control", "no-cache")
  .addHeader("Postman-Token", "3f81374d-d895-4a55-9122-297,3ff3b3f8-7149-46b9-887e-db1b4")
  .addHeader("Host", "myapps.com")
  .addHeader("Cookie", "AWSALB=HKdluG7WMh8PQmgNrYwRK+fpDEAE3DKnRQXIWOngg7Tn9kzEy5lQWhSsU45P7aLxk7Y")
  .addHeader("Accept-Encoding", "gzip, deflate")
  .addHeader("Content-Length", "17805")
  .addHeader("Connection", "keep-alive")
  .addHeader("cache-control", "no-cache")
  .build();

Response response = client.newCall(request).execute();

最佳答案

试试这个。我是根据你的邮递员请求查询来做的，很肯定会成功的。

 OkHttpClient okHttpClient = new OkHttpClient();

        MultipartBody.Builder builder = new MultipartBody.Builder();
        builder.setType(MultipartBody.FORM);
            builder.addFormDataPart("photo", filepath.getAbsolutePath());

            String url = ApiEndPoint.ENDPOINT_UPLOAD_PROFILE_PHOTO;
        RequestBody fileBody = RequestBody.create(MediaType.parse("image/jpeg"), filepath);
        builder.addFormDataPart("photo", filepath.getName(), fileBody);
        RequestBody requestBody = builder.build();
        Request request = new Request.Builder()
                .url(processUrl(url))
                .addHeader("Authorization",mApiHeader.getFormattedProtectedApiHeader())
                .post(requestBody)
                .build();
        okHttpClient.newCall(request).enqueue(new okhttp3.Callback(){
            @Override
            public void onFailure(Call call, IOException e) {
                Log.e("OkHttp1", "onFailure: "+e.toString());
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                ResponseBody body = response.body();
                if (body != null) {
                    Log.e("OkHttp1", "onResponse: " + body.string());
                } else {
                    Log.e("OkHttp1", "onResponse: null");
                }
            }
        });

关于android - 如何为rxjava2 androidnetworking POST请求传递多部分body参数？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/57598276/