使用Traceld实现系统请求跟踪

1、建立一个过滤器，在过滤器中给线程设置TraceId
2、将日志的配置文件进行修改，把TraceId打印到日志中

@Order(1)
@WebFilter(urlPatterns = "/*")
public class TraceldFilter implements Filter{
    private static final String TRACE_ID="traceId";
    
    
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
            throws IOException, ServletException {
        // 给每一个线程分配一个traceId
        String traceId=request.getParameter(TRACE_ID);
        if(StringUtils.isBlank(traceId)) {
            traceId=UUID.randomUUID().toString();
        }
        MDC.put(TRACE_ID, traceId);
        chain.doFilter(request, response);
    }
}

application.properties

logging.pattern.console= %d [%thread] %-5p [%c] [%F:%L][traceId:%clr(%X{traceId})] - %msg%n

@SpringBootApplication
@ServletComponentScan
public class AllLearningApplication {

    public static void main(String[] args) {
        SpringApplication.run(AllLearningApplication.class, args);
    }

}

这个方案还是比较简陋的，有时间再看看好的方案