Wish your reply, thanks

Refer to code as blow:

public class  MyInterceptor implements RequestInterceptor {
    @Override
    public void apply(RequestTemplate requestTemplate) {
         String xid = RequestContextHolder.getRequestAttributes().getRequest().getHeader("xid");
         requestTemplate.header("xid", xid);
    }
}

RequestContextHolder is a threadlocal class based on Spring Web Context. You need to pay attention to async scene, that means threadlocal value will be lost with async scene

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