springboot中，feign 调用时，参数对象中的Integer类型null，转为0的处理

在调用时，消费方传给feign为null,服务方收到的却是0，在消费方启动类加上以下代码，不行，服务方也加上

@Bean
	public HttpMessageConverters fastJsonHttpMessageConverters() {
		//创建FastJson信息转换对象
		FastJsonHttpMessageConverter fastJsonHttpMessageConverter = new FastJsonHttpMessageConverter();
		//创建FastJson对象并设定序列化规则
		FastJsonConfig fastJsonConfig = new FastJsonConfig();
		fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);
		fastJsonHttpMessageConverter.setSupportedMediaTypes(Arrays.asList(MediaType.APPLICATION_JSON_UTF8));
		//规则赋予转换对象`
		fastJsonHttpMessageConverter.setFastJsonConfig(fastJsonConfig);
		return new HttpMessageConverters(fastJsonHttpMessageConverter, new StringHttpMessageConverter(Charset.forName("UTF-8")));
	}