import org.slf4j.MDC;

import javax.servlet.*;

import javax.servlet.annotation.WebFilter;

import java.io.IOException;

import java.util.UUID;

@WebFilter(filterName = "logbackFilter", urlPatterns = "/*")

public class LogbackFilter implements Filter {

    @Override

    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override

    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        UUID uuid = UUID.randomUUID();

        MDC.put("wtraceid", uuid.toString().replace("-",""));

        try {

            filterChain.doFilter(servletRequest,servletResponse);

        }finally {

            MDC.remove("wtraceid");//保证一次请求一个唯一标识

        }

    }

    @Override

    public void destroy() {

    }

}

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
   <include resource="org/springframework/boot/logging/logback/defaults.xml" />

   <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
      <encoder>
         <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] WTraceId[%X{wtraceid}] [%highlight(%5p)] %msg%n</pattern>
         <charset>utf8</charset>
      </encoder>
   </appender>

   <root level="INFO">
      <appender-ref ref="CONSOLE" />
   </root>
</configuration>