优化trace

src/main/java/com/laker/admin/framework/aop/trace/TraceContext.java

@@ -63,7 +63,7 @@ public class TraceContext {
             return;
         }
         spans.sort(Comparator.comparing(Span::getOrder));
-        spans.stream().max(Comparator.comparing(Span::getCost)).get().setMax(true);
+        spans.stream().filter(span -> span.getLevel() != 0).max(Comparator.comparing(Span::getCost)).ifPresent(span -> span.setMax(true));
         for (Span span : spans) {
             log.warn("{}{}{}{}({})[{}ms]:[{}]-{}", append + BAR, span.isMax() ? "【" : "[", span.getLevel(), span.isMax() ? "】" : "]", span.getOrder(), span.getCost(), span.getSpanType(), span.getId());
             logSpan(span.getChilds(), append + BAR);