diff --git a/spring/webflux/webclient.md b/spring/webflux/webclient.md
index 2d0bbf1..bb65aec 100644
--- a/spring/webflux/webclient.md
+++ b/spring/webflux/webclient.md
@@ -450,5 +450,25 @@ public class MultipartExchangeFilterFunction implements ExchangeFilterFunction {
 	}
 }
 ```
+## Attributes
+可以向request中添加attributes，并且可以通过attributes来影响filter中的行为
+```java
+WebClient client = WebClient.builder()
+		.filter((request, next) -> {
+			Optional<Object> usr = request.attribute("myAttribute");
+			// ...
+		})
+		.build();
+
+client.get().uri("https://example.org/")
+		.attribute("myAttribute", "...")
+		.retrieve()
+		.bodyToMono(Void.class);
+
+	}
+```
+除此之外，可以通过`org.springframework.web.reactive.function.client.DefaultWebClientBuilder#defaultRequest`方法为`webClient`注册一个callback回调，该回调可为所有请求插入attribute。
+
+