图片上传API Call适用于Postman，但为什么不使用Android App？

Question

I am trying to upload an image through API call from my app. But it seems to me that it is working in postman but not when done through my app. I am using retrofit 2 and backend code is PHP.Kindly help me through the process.

PHP Code:

case 'profileImage':

$id=$_POST['id'];
$image_name=("profile".$id.".jpg");
$upload_path=("../gm-app/assets/images/users-profile/".$image_name);

    $res= mysqli_query($db,"UPDATE `users` SET `image` = ('$image_name') WHERE `userid`='".$_POST['id']."'");

    if(isset($_FILES['file'])){

         if(move_uploaded_file($_FILES['file']['tmp_name'], $upload_path)){

            $rs['message'] = "Profile Image Updated";
            $rs['stat'] = "SUCCESS"; 
    }else{

        $rs['message'] = "Profile Image not Updated";
        $rs['stat'] = "FAILED";

    }
    }

echo json_encode($rs);die;
    break;

Retrofit call:

File file = new File(mediaPath);
        RequestBody requestBody=RequestBody.create(MediaType.parse("image/*"), file);
        Retrofit retrofit=new Retrofit.Builder().
                baseUrl(MyConstants.ROOT_URL).
                addConverterFactory(ScalarsConverterFactory.create()).
                build();

        apinterface services = retrofit.create(apinterface.class);
        Call<ResponseBody> call=services.postImage(requestBody,uid);

        call.enqueue(new Callback<ResponseBody>() {
            @Override
            public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
                if (response.body()!=null)
                {

                    try {

                        Toast.makeText(MyProfile.this, "Image Uploaded", Toast.LENGTH_SHORT).show();
                        String image =  response.body().string();

                        Log.d(TAG, "onResponse: "+image);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                }
            }

            @Override
            public void onFailure(Call<ResponseBody> call, Throwable t) {
                Log.d(TAG, "onFailure: "+t.getMessage());

            }
        });

API :

@Multipart
    @POST("services.php?apicall=profileImage")
    Call<ResponseBody> postImage(@Part("file") RequestBody image, @Part("id") String id);

Answer 1

Because there's something wrong with your code about multipart..

Interface :

@Multipart
@POST("services.php?apicall=profileImage")
Call<ResponseBody> postImage(
    @Part MultipartBody.Part image, 
    @Part("id") RequestBody id
);

Call the API

Retrofit retrofit=new Retrofit.Builder().
        baseUrl(MyConstants.ROOT_URL).
        addConverterFactory(ScalarsConverterFactory.create()).
        build();
apinterface services = retrofit.create(apinterface.class);

//Bikin request body
File file = new File(mediaPath);
RequestBody reqFile = RequestBody.create(MediaType.parse("image/*"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData("file", file.getName(), reqFile);
RequestBody reqId = RequestBody.create(MediaType.parse("text/plain"), uid);

//Tembak APInya
services.postImage(reqfile, reqId)
    .enqueue(new Callback<ResponseBody>() {
        @Override
        public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
            //tulis aksi disini
        }

        @Override
        public void onFailure(Call<ResponseBody> call, Throwable t) {
            //tulis aksi disini
        }
});