kin122 opened a new issue #7434:
URL: https://github.com/apache/skywalking/issues/7434
Please answer these questions before submitting your issue.
- Why do you submit this issue?
- [ * ] Question or discussion
- [ ] Bug
- [ ] Requirement
- [ ] Feature or performance improvement
___
### Question
- What do you want to know?
hi ，Mr Wu.
We want to implement asynchronous tracking of the webclient in WebFlux.
So we try to modify the WebFluxWebClientInterceptor in
spring-webflux-5.x-webclient-plugin.
The code is as follows:
```
public void beforeMethod(EnhancedInstance objInst, Method method, Object[]
allArguments, Class<?>[] argumentsTypes, MethodInvocationContext context)
throws Throwable {
if (allArguments[0] == null) {
//illegal args,can't trace ignore
return;
}
// ################# here are the code we
injected###########################
LOGGER.info("getSkyWalkingDynamicField-------------{}",
objInst.getSkyWalkingDynamicField());
for (int i = 0; i < allArguments.length; i++) {
LOGGER.info("----allArguments[{}]-----{}---------", i,
allArguments[i]);
}
ClientRequest request = (ClientRequest) allArguments[0];
final ContextCarrier contextCarrier = new ContextCarrier();
URI uri = request.url();
final String requestURIString = getRequestURIString(uri);
final String operationName = requestURIString;
final String remotePeer = getIPAndPort(uri);
AbstractSpan span = ContextManager.createExitSpan(operationName,
contextCarrier, remotePeer);
//set components name
span.setComponent(ComponentsDefine.SPRING_WEBCLIENT);
Tags.URL.set(span, uri.toString());
Tags.HTTP.METHOD.set(span, request.method().toString());
SpanLayer.asHttp(span);
if (request instanceof EnhancedInstance) {
((EnhancedInstance)
request).setSkyWalkingDynamicField(contextCarrier);
}
//user async interface
span.prepareForAsync();
ContextManager.stopSpan();
context.setContext(span);
}
```
We would like to use objInst.getSkyWalkingDynamicField() to get the traceid,
but always get null.
May I ask if this method is feasible to get the traceid of the webclient ?
Or give me some suggestion，please.
___
### Bug
- Which version of SkyWalking, OS, and JRE?
- skywalking8.7.0
- Which company or project?
- What happened?
If possible, provide a way to reproduce the error. e.g. demo application,
component version.
___
### Requirement or improvement
- Please describe your requirements or improvement suggestions.
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