通过PUT请求上传多部分/表单数据，在okhttp上不起作用？

Question

I don't know it is bug, or I am doing something wrong.

Here is my okhttp request:

private static final MediaType MEDIA_TYPE_JPEG = MediaType.parse("image/jpeg");

protected void putImage(String path) throws IOException {
    RequestBody requestBody = new MultipartBuilder()
        .type(MultipartBuilder.FORM)
        .addPart(
            Headers.of("Content-Disposition", "form-data; name=\"image\""),
            RequestBody.create(MEDIA_TYPE_JPEG, new File(path)))
        .build();
    Request request = new Request.Builder()
        .url("http://localhost:9090/")
        .put(requestBody)
        .build();
    Timber.d(request.urlString());
    okHttpClient.newCall(request).enqueue(new Callback() {
       @Override public void onFailure(Request request, IOException e) {
           e.printStackTrace();
       }

       @Override public void onResponse(Response response) throws IOException {
           Timber.d(response.body().string());
       }
    });
}

It gives error with at the backend code :

I thought it just backend code has a bug, however, It works on curl :

curl -v -XPUT -include --form asdfasdf=@Photo_20140806_000942.jpg http://localhost:9090/

My questions:

1. Is putImage correct and align with okhttp ?
2. Is my curl command works very intelligently that make it works?
3. Or okhttp does extra things that my backend code should handle?

Answer 1

You might need to specify the filename header. Try setting the Content-Disposition like this:

Headers.of("Content-Disposition", "form-data; name=\"image\"; filename=\"Photo_20140806_000942.jpg\"")