sprintboot微服务请求中token的传递

关于sprintboot微服务请求token传递(解决方法)

1. 使用@RequestHeader(只需要改变消费者的请求参数)（测试可用）

在访问FeignClient的controller中加入@RequestHeader将请求头中的token取出来作为参数传入FeignClient中

在FeignClient中使用@RequestHeader将token参数放入到请求头中

2.通过实现 RequestInterceptor 接口，拦截发出的feignClient请求装入请求的token(未测试)

import org.springframework.stereotype.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import java.util.Enumeration;
@Configuration
public class FeignConfiguration implements RequestInterceptor {
    @Override
    public void apply(RequestTemplate requestTemplate) {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder
                .getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        Enumeration<String> headerNames = request.getHeaderNames();
        if (headerNames != null) {
            while (headerNames.hasMoreElements()) {
                String name = headerNames.nextElement();
                String values = request.getHeader(name);
                requestTemplate.header(name, values);
            }
        }
    }
}

然后将自定义的配置类配置到Feign中，就可以实现该Feign中接口Header参数的传递

    @FeignClient(value = "service-name" ,configuration = FeignConfiguration.class)
    public interface XXXFeignClient {
    }