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new 309b29f update routing-rule.md (#1021)
309b29f is described below
commit 309b29f0c1b587a5a9c857f980816e550da11638
Author: wuwen <wuwen...@aliyun.com>
AuthorDate: Fri Jan 7 10:38:33 2022 +0800
update routing-rule.md (#1021)
---
content/zh/docsv2.7/user/examples/routing-rule.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/content/zh/docsv2.7/user/examples/routing-rule.md
b/content/zh/docsv2.7/user/examples/routing-rule.md
index ac14d99..47d42bb 100644
--- a/content/zh/docsv2.7/user/examples/routing-rule.md
+++ b/content/zh/docsv2.7/user/examples/routing-rule.md
@@ -219,7 +219,7 @@ host != 172.22.3.* => host != 172.22.3.*
#### Consumer
```java
-RpcContext.getContext().setAttachment(Constants.REQUEST_TAG_KEY,"tag1");
+RpcContext.getContext().setAttachment(CommonConstants.TAG_KEY,"tag1");
```
请求标签的作用域为每一次 invocation，使用 attachment 来传递请求标签，注意保存在 attachment
中的值将会在一次完整的远程调用中持续传递，得益于这样的特性，我们只需要在起始调用时，通过一行代码的设置，达到标签的持续传递。
