@Override
    public void write(
            Object o,
            Type type,
            MediaType contentType,
            HttpOutputMessage outputMessage
    ) throws IOException, HttpMessageNotWritableException {
        // support StreamingHttpOutputMessage in spring4.0+
        super.write(o, contentType, outputMessage);
    }
@param fastJsonConfig the fastJsonConfig to set.
fastjson1-compatible/src/main/java/com/alibaba/fastjson/support/spring/FastJsonHttpMessageConverter.java