日志优化MDC
MDC(Mapped Diagnostic Context) 实现 步骤1：创建MDCFilter实现Filter filter（过滤器）作用于在intreceptor(拦截器)之前，不像intreceptor一样依赖于springmvc框架，只需要依赖于serverlet。 在过滤之前在reqId钟放入uuid并在结束之后remove
import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.slf4j.MDC; import org.springframework.stereotype.Component; import javax.servlet.*; import javax.servlet.http.HttpServletRequest; import java.io.IOException; import java.util.UUID; /** * @Author shizhongcai * @Date 2019/11/15 11:15 */ @Component public class MDCFilter implements Filter { private static final Logger LOG = LoggerFactory.getLogger(MDCFilter.class); public static final String MDC_ID = "reqId"; @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { boolean mdcFlag = false; try { MDC.……