diff --git a/base-system-server/src/main/java/com/health/system/server/service/impl/SysSignServiceImpl.java b/base-system-server/src/main/java/com/health/system/server/service/impl/SysSignServiceImpl.java
index f029cfc..c357418 100644
--- a/base-system-server/src/main/java/com/health/system/server/service/impl/SysSignServiceImpl.java
+++ b/base-system-server/src/main/java/com/health/system/server/service/impl/SysSignServiceImpl.java
@@ -8,7 +8,9 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.stereotype.Service;
 
+import java.util.Calendar;
 import java.util.Date;
+import java.util.concurrent.TimeUnit;
 
 /**
  * @author 冯凯
@@ -63,6 +65,14 @@ public class SysSignServiceImpl implements SysSignService {
         Sign sign = this.searchSignByUserId(userId);
         sign.setSignAmount(sign.getSignAmount()+1);
         sysSignMapper.signByUserId(sign);
-        redisService.setCacheObject("sing:"+userId,sign);
+        Calendar calendar = Calendar.getInstance();
+
+// 将时间设置为第二天凌晨0点
+        calendar.set(Calendar.HOUR_OF_DAY, 0);
+        calendar.set(Calendar.MINUTE, 0);
+        calendar.set(Calendar.SECOND, 0);
+        calendar.add(Calendar.DAY_OF_MONTH, 1);
+        long expireTime = (calendar.getTimeInMillis() - System.currentTimeMillis()) / 1000;
+        redisService.setCacheObject("sign:"+userId,sign,expireTime, TimeUnit.SECONDS);
     }
 }