package com.heyu.api.common; import ch.qos.logback.classic.pattern.ClassicConverter; import ch.qos.logback.classic.spi.ILoggingEvent; import org.slf4j.MDC; public class LogClassicConverter extends ClassicConverter { @Override public String convert(ILoggingEvent event) { String traceId = MDC.get("traceId"); if (traceId != null) { StringBuffer sb = new StringBuffer(); sb.append("[").append(traceId); sb.append("]"); return sb.toString(); } return ""; } }