Question

我正在尝试使用multipart / form-data发送POST。我遇到了一些问题，这些问题在这个论坛得到解决，比如额外的引用以及如何发送几个文件。但是现在，我想在一个数组中发送带有唯一名称的文件。我将附上两个文件来更好地表达我想要做的事情。

我收到这样的文件......

我希望收到这样的文件......

是否可以使用改装2更改车身数据结构？我想将mimetype数据从multipart / form-data更改为image / jpeg。

一些代码

HashMap<String, RequestBody> files = attachFile();

    api.createPlant(plant.getName(),
            plant.getSize(), plant.getPhSoil(), plant.getEcSoil(), plant.getGardenId(), files)
            .subscribeOn(Schedulers.newThread())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Subscriber<Plant>() {
                @Override
                public final void onCompleted() {
                    Log.e(TAG, "on completed");
                }

                @Override
                public final void onError(Throwable e) {
                    Log.e(TAG, e.getMessage());
                }

                @Override
                public final void onNext(Plant response) {
                    mBody.setText(response.toString());
                }
            });

private HashMap<String, RequestBody> attachFile() {

    ArrayList<String> listOfNames = new ArrayList<>();
    listOfNames.add("images");
    listOfNames.add("mango-lg2");

    HashMap<String, RequestBody> map = new HashMap<>(listOfNames.size());
    RequestBody file = null;
    File f = null;

    for(int i = 0, size = listOfNames.size(); i<size;i++){

        try {

            File folder = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);

            f = new File(folder, listOfNames.get(i) + ".jpg");

            Bitmap bitmap = convertFileToBitmap(f);

            if(bitmap != null){
                FileOutputStream fos = new FileOutputStream(f);
                bitmap.compress(Bitmap.CompressFormat.JPEG, 0 /*ignored for PNG*/, fos);
                fos.flush();
                fos.close();
            }else{
                Log.i("INFO", "imageNotFound");
                return null;
            }
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }

        file = RequestBody.create(MediaType.parse("multipart/form-data"), f);
        map.put("file\"; filename=\"" + listOfNames.get(i) + ".jpg",file);
        file = null;
        f = null;
    }
    return map;
}

Answer 1

我使用MultipartBody.Builder解决了我的问题，并使用RequestBody发送数据。

#trim(data)#

辅助方法

MultipartBody.Builder builder = new MultipartBody.Builder()
            .setType(MultipartBody.FORM)
            .addFormDataPart("name", plant.getName())
            .addFormDataPart("size", String.valueOf(plant.getSize()));

    ArrayList<File> files = new ArrayList<>();

    File folder = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);

    files.add(new File(folder, "images.jpg"));
    files.add(new File(folder, "mango-lg2.jpg"));

    builder = addImagesToRequestBody(builder, files);

    api.createPlant(builder.build())
            .subscribeOn(Schedulers.newThread())
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(new Subscriber<Plant>() {
                @Override
                public final void onCompleted() {
                    Log.e(TAG, "on completed");
                }

                @Override
                public final void onError(Throwable e) {
                    Log.e(TAG, e.getMessage());
                }

                @Override
                public final void onNext(Plant response) {
                    mBody.setText(response.toString());
                }
            });

改造2多部分仅发送数组文件而不是部分数组

1 个答案: