Android，okhttp同时上传文件和json

Question

我okhttp3，我希望能够上传文件，上传JSON数据，但发现只能同时上传HashMap，请问，如何上传JSON？我发现RequestBody类方法创建，上传json和上传文件的方法是重载

Answer 1

复杂请求----- Multipart / form-data

找一些示例代码，但我仍然不明白：

MultipartBody.Builder builder = new MultipartBody.Builder();
        MultipartBody body = builder
                .setType(MultipartBody.FORM)
                .addPart(
                        Headers.of("Content-Disposition", "form-data; name=\"title\""),
                        RequestBody.create(null, "Square Logo"))
                .addPart(
                        Headers.of("Content-Disposition", "form-data; name=\"image\""),
                        RequestBody.create(MEDIA_TYPE_PNG, new File("website/static/logo-square.png")))
                .build();

        Request request = new Request.Builder()
                .header("Authorization", "Client-ID " + IMGUR_CLIENT_ID)
                .url("https://api.imgur.com/3/image")
                .post(body)
                .build();

        Response response = OkHttpUtils.getInstance().getOkHttpClient().newCall(request).execute();