网关中增加全局过滤器
@Bean public GlobalFilter c() {
return (exchange, chain) -> {
exchange.getRequest().mutate().header("traceId", UUID.randomUUID().toString()).build(); return chain.filter(exchange); }; }
下游系统获取
@GetMapping("/test”) public JSONObject search(@RequestHeader String traceId){
log.info("traceId {}",traceId); }
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