Android 使用改装2上传多张照片

我正在做一个演示，用户可以点击多张照片并上传到服务器上，所以我创建了一个列表，在这个列表中我存储了所有的图片，但当到达API端点时，我遇到了异常。 已通过但无法解决问题

这是我的日志猫：

java.lang.IllegalArgumentException: @Part annotation must supply a name or use MultipartBody.Part parameter type. (parameter #1)
        for method RetrofitInterface.uploadImages
        at retrofit2.ServiceMethod$Builder.methodError(ServiceMethod.java:720)
        at retrofit2.ServiceMethod$Builder.methodError(ServiceMethod.java:711)
        at retrofit2.ServiceMethod$Builder.parameterError(ServiceMethod.java:729)
        at retrofit2.ServiceMethod$Builder.parseParameterAnnotation(ServiceMethod.java:592)
        at retrofit2.ServiceMethod$Builder.parseParameter(ServiceMethod.java:333)
        at retrofit2.ServiceMethod$Builder.build(ServiceMethod.java:202)
        at retrofit2.Retrofit.loadServiceMethod(Retrofit.java:166)
        at retrofit2.Retrofit$1.invoke(Retrofit.java:145)
        at $Proxy0.uploadImages(Native Method)
        at com.example.innobles.imagesuploader.Remote.RetrofitClient.uploads(RetrofitClient.java:41)

更新client.java：

public class RetrofitClient {

    public static final String BASE_URL = "http://example.com/abc/application/";
    private static RetrofitClient retrofitClient;
    private static RetrofitInterface retrofitInterface;

    public static RetrofitInterface getRetrofitApi() {
        //return retrofit object
    }

    public static Call<ServerResponse> uploads( Map<String,MultipartBody.Part> images) {
        return getRetrofitApi().uploadImages(images);
    }
}

---

我哪里做错了？请帮帮我，我是android新手。

我确实解决了如下问题：

在RetrfitClient.java中添加createRequestBody（）方法，并在uploadsImages（列表uri）方法中调用此方法

在interface.java中：

替换

calluploadimages（@partmap-images）与
调用上载图像（@PartMap-Map-files）

createRequest方法：

public static RequestBody createRequestBody(@NonNull File file){
        return RequestBody.create(MediaType.parse("multipart/form-data"),file);
    }

@哈迪克瓦萨尼谢谢你，伙计，你节省了我的时间。再次感谢
private void uploadImages(List<Uri> uriPaths) {
        Map<String,MultipartBody.Part> list = new HashMap<>();
        for (Uri uri : uriPaths) {
            MultipartBody.Part imageRequest = prepareFilePart("file[]", uri);
            list.put("images", imageRequest);
        }

        RetrofitClient.uploads(list).enqueue(new Callback<ServerResponse>() {
            @Override
            public void onResponse(Call<ServerResponse> call, Response<ServerResponse> response) {
                if (response.isSuccessful() && response.body()!=null)
                    Log.e("MAIN", response.body().getMessage());

            }

            @Override
            public void onFailure(Call<ServerResponse> call, Throwable t) {
                Log.e("main", "on error is called and the error is  ----> " + t.getMessage());

            }
        });


    }

  @NonNull
    private MultipartBody.Part prepareFilePart(String partName, Uri fileUri) {
        File file = new File(fileUri.getPath());
        RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);

        // MultipartBody.Part is used to send also the actual file name
        return MultipartBody.Part.createFormData(partName, file.getName(), requestFile);
    }

public static RequestBody createRequestBody(@NonNull File file){
        return RequestBody.create(MediaType.parse("multipart/form-data"),file);
    }