问题 feign.codec.EncodeException: No qualifying bean of type 'org.springframework.boot.autoconfigure.http.HttpMessageConverters' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 的解决方案：

Spring Cloud Gateway是基于WebFlux的，是ReactiveWeb，所以HttpMessageConverters不会自动注入。在gateway服务中配置以下Bean，即可解决。

@Bean
@ConditionalOnMissingBean
public HttpMessageConverters messageConverters(ObjectProvider<HttpMessageConverter<?>> converters) {
	return new HttpMessageConverters(converters.orderedStream().collect(Collectors.toList()));
}