修改图像上传无法处理的实体错误

Question

我正在上传一个改型多部分API的图像。我在邮递员中取得了成功，但在代码中出现了以下错误：

响应{protocol=http/1.1,code=422,message=不可处理实体，url=http://upload-snack.13.251.251.232.nip.io/upload}

邮递员：

 @Multipart
    @POST("upload")
    Call<ResponseBody> uploadImage(@Part MultipartBody.Part image);

 public static Retrofit getRetrofitClient(Context context, String baseURL) {
        if (retrofit == null) {
            OkHttpClient okHttpClient = new OkHttpClient.Builder()
                    .build();
            retrofit = new Retrofit.Builder()
                    .baseUrl(baseURL)
                    .client(okHttpClient)
                    .addConverterFactory(GsonConverterFactory.create())
                    .build();
        }
        return retrofit;
    }

 private void uploadToServer(String filePath) {
        Retrofit retrofit = ServiceGenerator.getRetrofitClient(this, "http://upload-snack.13.251.251.232.nip.io/");
        Api uploadAPIs = retrofit.create(Api.class);
        //Create a file object using file path
        File file = new File(filePath);
        // Create a request body with file and image media type
        RequestBody fileReqBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
        // Create MultipartBody.Part using file request-body,file name and part name
        MultipartBody.Part part = MultipartBody.Part.createFormData("image", file.getName(), fileReqBody);
        //Create request body with text description and text media type
       // RequestBody description = RequestBody.create(MediaType.parse("text/plain"), "image-type");
        //
        Call call = uploadAPIs.uploadImage(part);
        call.enqueue(new Callback() {
            @Override
            public void onResponse(Call call, Response response) {
                Log.e("response", response.toString());
            }

            @Override
            public void onFailure(Call call, Throwable t) {
                Log.e("failure", "failure");
            }
        });
    }

null

Answer 1

更改multipart/form-data的媒体类型image/*instance。我想这对你有帮助。

 File file = new File(filePath);
    // Create a request body with file and image media type
    RequestBody fileReqBody = RequestBody.create(MediaType.parse("multipart/form-data"), file);
    // Create MultipartBody.Part using file request-body,file name and part name
    MultipartBody.Part part = MultipartBody.Part.createFormData("image", file.getName(), fileReqBody);