feign调用接口报错No qualifying bean of type '***HttpMessageConverters' available

在整合spring cloud geateway 时，调用了feign接口，报错No qualifying bean of type 'org.springframework.boot.autoconfigure.http.HttpMessageConverters' available

报错信息

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:

错误原因

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。

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