diff --git a/linkage-boot/linkage-module-demo/src/main/java/org/jeecg/modules/demo/virsualwostatus/controller/TtVirsualWoStatusController.java b/linkage-boot/linkage-module-demo/src/main/java/org/jeecg/modules/demo/virsualwostatus/controller/TtVirsualWoStatusController.java
index 195bc9e..9bb0155 100644
--- a/linkage-boot/linkage-module-demo/src/main/java/org/jeecg/modules/demo/virsualwostatus/controller/TtVirsualWoStatusController.java
+++ b/linkage-boot/linkage-module-demo/src/main/java/org/jeecg/modules/demo/virsualwostatus/controller/TtVirsualWoStatusController.java
@@ -1,6 +1,7 @@
 package org.jeecg.modules.demo.virsualwostatus.controller;
 
 import java.math.BigDecimal;
+import java.math.BigInteger;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.time.LocalDate;
@@ -113,7 +114,8 @@ public class TtVirsualWoStatusController extends JeecgController<TtVirsualWoStat
 			String openDate = nowDateString.substring(0, 10) + " 08:" + openTimeParam;//开机时间8点到9点之间2023-02-08 08:45
 			long time = date.getTime();
 			long time2 = sdf.parse(openDate).getTime();
-			int progress = (int)((time - time2) * 100) / (1000 * 60 * 480);
+			long time3 = (time-time2)*100/ (long) (1000 * 60 * 480);
+			int progress = (int) time3 ;
 			virsualWoStatus.setProgress(new BigDecimal("0." + progress));
 			if(i == 1){
 				virsualWoStatus.setWoNo("D23020071");