[GitHub] [skywalking] xiaozuo2020 commented on issue #6900: SpringcloudGateway can't get traceId

Mon, 27 Dec 2021 19:20:41 -0800 


xiaozuo2020 commented on issue #6900:
URL: https://github.com/apache/skywalking/issues/6900#issuecomment-1001848175


   > 
   
   
   
   > > 
   > 
   > Object entrySpanInstance = exchange.getAttributes().get("SKYWALING_SPAN");
   > 
   > Class<?> entrySpanClazz = 
entrySpanInstance.getClass().getSuperclass().getSuperclass();
   > 
   > Field field = entrySpanClazz.getDeclaredField("owner");
   > 
   > field.setAccessible(true);
   > 
   > Object ownerInstance = field.get(entrySpanInstance);
   > 
   > Class<?> ownerClazz = ownerInstance.getClass();
   > 
   > Method getTraceId = ownerClazz.getMethod("getReadablePrimaryTraceId");
   > 
   > String traceId = (String) getTraceId.invoke(ownerInstance);
   > 
   > 您需要在过滤器方法中编写此代码。
   > 
   > 希望对你有帮助。
   
   3q,so much!!!
   that day, I found another way 
   modify the 2.1x gateway plugin，this plugin  includ webflux plugin code
   
![1122](https://user-images.githubusercontent.com/52436771/147524244-afcf41d6-fe9e-4002-8454-0780e0944256.png)
   
   then  i can get traceID in attributes
   
   
![445](https://user-images.githubusercontent.com/52436771/147524441-aa79abad-ca7c-4038-a553-6fe2327fdae2.png)
   
   


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