设置Feign的Header信息

两种方式

1.在方法参数前面添加@RequestHeader注解

@PostMapping(value = "/getStuDetail")
public ReturnInfo getStudentDetail(@RequestBody Map map,@RequestHeader(name = "id") String id);

使用@RequestHeader(name = "id")可以传递动态header属性

2.实现RequestInterceptor接口,设置Header(所有Feign请求)

import org.springframework.context.annotation.Configuration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import feign.RequestInterceptor;
import feign.RequestTemplate;

@Configuration
public class FeignConfiguration implements RequestInterceptor {   
      @Override    
      public void apply(RequestTemplate template) {       
            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);            
                        template.header(name, values);            
                  }            
            }   
      }
}
//configuration = FeignConfiguration.class===================
@Component@FeignClient(value = "xxxxxxxxx",fallback = XxxxxServiceHystric.class ,configuration = FeignConfiguration.class)
public interface XxxxxService {
}

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