1. APIService 定義註解

  @Multipart
    @POST("cyxx/Feedback/add.do")
    Observable<ResponseBody> getFeedbackResult(
            @PartMap Map<String, RequestBody> params
    );

2.程式碼裡使用

Map<String, RequestBody> map = new HashMap<>();
//text屬性如何放入
map.put("name",RxPartMapUtils.
 
toRequestBodyOfText(mAccount));

//file屬性如何放入
   for (String _selectedPhoto : pSelectedPhotos) {
            File _file = new File(_selectedPhoto);
            Log.e(TAG,"file"+_file.exists());
            if(_file.exists()) {
              RequestBody _requestBody =              RxPartMapUtils.toRequestBodyOfImage(_file);
              Log
 
.e(TAG,"file:"+_file.getName());
              map.put("file\"; filename=\""+_file.getName()+"", _requestBody);
            }
        }

3.RxPartMapUtils方法

   public static RequestBody toRequestBodyOfText (String value) {
        RequestBody body = RequestBody.create(MediaType.parse("text/plain"), value
 
);
        return body ;
    }

  public static RequestBody toRequestBodyOfImage(File pFile){

        RequestBody fileBody = RequestBody.create(MediaType.parse("image/*"), pFile);
        return fileBody;
    }