更新 DemoApplication.java

src/main/java/com/notemap/demo/DemoApplication.java

@@ -18,7 +18,7 @@ public class DemoApplication {
         TimerTask timerTask = new TimerTask() {
             @Override
             public void run() {
-                log.info("Run timerTask：" +getRanDom("", 20));
+                log.info("Run timerTask：" + getRanDom("test", 20));
             }
         };
         Timer timer = new Timer();