Gateway调用Feign失败的问题
问题服务B 通过Feign 可以正常调通 服务A网关Gateway却不能通过Feign调通服务A解决思路修改日志的输出级别为DEBUG创建feign的配置文件,设置feign的日志输出级别为所有/*** Feign 配置* @author: itdragons* @time: 2020/4/29 5:14 下午*/@Configurationpublic cla...
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问题
服务B 通过Feign 可以正常调通 服务A
网关Gateway却不能通过Feign调通服务A
解决思路
- 修改日志的输出级别为DEBUG
- 创建feign的配置文件,设置feign的日志输出级别为所有
/**
* Feign 配置
* @author: itdragons
* @time: 2020/4/29 5:14 下午
*/
@Configuration
public class FeignConfig {
@Bean
Logger.Level feignLevel() {
//这里记录所有
return Logger.Level.FULL;
}
- gateway通过feign调用服务A,观察日志:
feign.codec.DecodeException: 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)}
at feign.SynchronousMethodHandler.decode(SynchronousMethodHandler.java:187)
at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:147)
at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:80)
at feign.hystrix.HystrixInvocationHandler$1.run(HystrixInvocationHandler.java:109)
通过日志可见HttpMessageConverters注入失败。
- 修改feign的配置文件,注入Decoder。
import feign.Logger;
import feign.codec.Decoder;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.ObjectFactory;
import org.springframework.boot.autoconfigure.http.HttpMessageConverters;
import org.springframework.cloud.openfeign.support.ResponseEntityDecoder;
import org.springframework.cloud.openfeign.support.SpringDecoder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import java.util.ArrayList;
import java.util.List;
/**
* Feign 配置
* @author: itdragons
* @time: 2020/4/29 5:14 下午
*/
@Configuration
public class FeignConfig {
@Bean
Logger.Level feignLevel() {
return Logger.Level.FULL;
}
@Bean
public Decoder feignDecoder() {
return new ResponseEntityDecoder(new SpringDecoder(feignHttpMessageConverter()));
}
public ObjectFactory<HttpMessageConverters> feignHttpMessageConverter() {
final HttpMessageConverters httpMessageConverters = new HttpMessageConverters(new PhpMappingJackson2HttpMessageConverter());
return new ObjectFactory<HttpMessageConverters>() {
@Override
public HttpMessageConverters getObject() throws BeansException {
return httpMessageConverters;
}
};
}
public class PhpMappingJackson2HttpMessageConverter extends MappingJackson2HttpMessageConverter {
PhpMappingJackson2HttpMessageConverter(){
List<MediaType> mediaTypes = new ArrayList<>();
mediaTypes.add(MediaType.valueOf(MediaType.TEXT_HTML_VALUE + ";charset=UTF-8"));
setSupportedMediaTypes(mediaTypes);
}
}
}
参考:https://www.jianshu.com/p/5461eb5386a8
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