我有一个OkHttp请求：

public String createImageEditWithOkHttp(String prompt) throws IOException
{
    OkHttpClient client = new OkHttpClient().newBuilder()
            .connectTimeout(30, TimeUnit.SECONDS)
            .callTimeout(30, TimeUnit.SECONDS)
            .readTimeout(30, TimeUnit.SECONDS)
            .writeTimeout(30, TimeUnit.SECONDS)
            .build();
    RequestBody body = new MultipartBody.Builder().setType(MultipartBody.FORM)
            .addFormDataPart("image","file",
                    RequestBody.create(MediaType.parse("application/octet-stream"),
                            ResourceUtils.getFile("classpath:image_edit_original.png")))
            .addFormDataPart("mask","file",
                    RequestBody.create(MediaType.parse("application/octet-stream"),
                            ResourceUtils.getFile("classpath:image_edit_mask.png")))
            .addFormDataPart("prompt",prompt)
            .addFormDataPart("n","1")
            .addFormDataPart("size", ImageSize.SMALL.getSize())
            .build();
    Request request = new Request.Builder()
            .url(IMAGE_EDIT_URL)
            .method("POST", body)
            .addHeader("Authorization", "Bearer " + OPENAI_API_KEY)
            .build();
    Response response = client.newCall(request).execute();

    return response.body().string();
}

在这里，从资源中读取文件，并将其作为multipartfile与okhttp post请求一起发送。OkHttp版本的工作原理与预期相同。但当我尝试将其转换为resttemplate版本时，它无法在请求男孩上找到文件。
我想把它转换成spring resttemplate request：

public String createImageEditWithRestTemplate(String prompt) throws FileNotFoundException
{
    HttpEntity<MultiValueMap<String, Object>> requestEntity
            = new HttpEntity<>(createBody(prompt), commonHttpHeaders());

    ResponseEntity<String> response = restTemplate.postForEntity(IMAGE_EDIT_URL, requestEntity, String.class);

    return response.getBody();
}


private MultiValueMap<String, Object> createBody(String prompt) throws FileNotFoundException
{
    MultiValueMap<String,Object> body = new LinkedMultiValueMap<>();

    body.add("image", ResourceUtils.getFile("classpath:image_edit_original.png"));
    body.add("mask", ResourceUtils.getFile("classpath:image_edit_mask.png"));
    body.add("prompt",prompt);
    body.add("n","1");
    body.add("size", ImageSize.SMALL.getSize());

    return body;
}

private HttpHeaders commonHttpHeaders()
{
    MultiValueMap<String,String> headers = new LinkedMultiValueMap<>();

    headers.add("Authorization", "Bearer " + OPENAI_API_KEY);
    headers.add("Content-Type", org.springframework.http.MediaType.MULTIPART_FORM_DATA_VALUE);

    return new HttpHeaders(headers);
}

但是在请求中找不到作为文件的图像。有什么建议吗？