springcloud 拦截OpenFiegn请求日志打印

import feign.RequestInterceptor;
import feign.RequestTemplate;
import feign.Target;
import feign.Target.HardCodedTarget;
import lombok.extern.slf4j.Slf4j;

import java.nio.charset.Charset;

@Slf4j
public class CustomerFeignRequestInterceptor implements RequestInterceptor {

    @Override
    public void apply(RequestTemplate template) {
        String url = template.url();
        Target<?> target = template.feignTarget();
        if (target instanceof HardCodedTarget) {
            HardCodedTarget hardCodedTarget = (HardCodedTarget) target;
            url = hardCodedTarget.url() + url;
        }
        String method = template.method();
        Charset charset = template.requestCharset();
        byte[] body = template.body();
        if (body == null) {
            body = "null".getBytes(charset);
        }
        log.info("\r\n{} {}\r\n{}", method, url, new String(body, charset));
    }
}

其他项目中，将这个工具类交由Spring管理

    @Bean
    public CustomerFeignRequestInterceptor customerFeignRequestInterceptor() {
        return new CustomerFeignRequestInterceptor();
    }