如何使用Android应用程序中的其他字段将照片发送到服务器? [英] How to send Photos to server with additional fields in Android app?

问题描述

我尝试通过翻新将多张照片发送到服务器.我有这样的端点:

I try to send multiple photos to server with Retrofit. I have endpoint like this:

@Multipart
@POST("/v1/props")
Call<ModelProp> createProp(
        @Header("x-auth") String token,
        @Part List<MultipartBody.Part> photo
);

但是我不知道如何通过以下方式向此POST方法添加其他信息:

But I don't know how to add to this POST method additional information with:

int price;
String currency;
ArrayList<String> tags;

有人可以帮助我将此字段添加到经过改造的POST吗?

Can someone help me add this fields to POST with retrofit?

数组可能包含1000多个元素

edit: Array may have 1000+ elements

推荐答案

在Retrofit 2中，您可以通过以下方式将其与图像一起发送额外的数据:

In Retrofit 2, You can send it extra data with the image in the following way:

编辑:基于Ali Ghafari的答案，您还可以使用PartMap

Based on Ali Ghafari answer you can also use PartMap

public interface ApiInterface {
    @Multipart
    @POST("/v1/props")
    Call<ModelProp> createProp(@Header("x-auth") String token, 
                      @Part List<MultipartBody.Part> photo,
                      @PartMap Map<String, RequestBody> map
}

您可以像这样使用它:

List<MultipartBody.Part> parts = new ArrayList<>();    
for (int i=0; i < upFileList.size(); i++){
   parts.add(prepareFilePart("my_file["+i+"]", upFileList.get(i)));
}
Map<String, RequestBody> partMap = new HashMap<>();
partMap.put("price", createPartFromString(edtPrice.getText().toString()));
partMap.put("currency", createPartFromString(edtCurrency.getText().toString()));
partMap.put("tags", createPartFromString(new Gson().toJson(tagsArrayList));
Call<User> call = client.createProp(TokenUtils.getToken(this), partMap);
call.enqueue(new Callback<ModelProp>() {
    @Override
    public void onResponse(retrofit.Response<ModelProp> response, Retrofit retrofit) {
        // consume response
    }

    @Override
    public void onFailure(Throwable t) {
        t.printStackTrace();
    }
});

prepareFilePart方法

prepareFilePart method

  private MultipartBody.Part prepareFilePart(String partName, Uri fileUri){

    File file = new File(fileUri.getPath(););

    RequestBody requestBody = RequestBody.create(MediaType.parse(getContentResolver().getType(fileUri)), file);

    return MultipartBody.Part.createFormData(partName, file.getName(),requestBody);
  }

createPartFromString方法

createPartFromString method

public RequestBody createPartFromString(String string) {
        return RequestBody.create(MultipartBody.FORM, string);
    }

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