diff --git a/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/distributedlock/DistributedLock.java b/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/distributedlock/DistributedLock.java
index 298a0b238f..6bfb25fe48 100644
--- a/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/distributedlock/DistributedLock.java
+++ b/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/distributedlock/DistributedLock.java
@@ -1,7 +1,6 @@
 package com.epmet.commons.tools.distributedlock;
 
 import com.epmet.commons.tools.exception.RenException;
-import com.epmet.commons.tools.redis.RedisKeys;
 import org.apache.commons.lang3.StringUtils;
 import org.redisson.api.RLock;
 import org.redisson.api.RedissonClient;
@@ -9,7 +8,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicInteger;
 
 /**
  * @Author zxc
@@ -23,6 +21,7 @@ public class DistributedLock {
 
     /**
      * @Description  抢锁🔒 每个锁持有十分钟
+     *  watchDog模式，每隔10s，自动更改持锁时间,假设宕机，持锁时间达到时，会自动释放锁
      * @Param name
      * @author zxc
      * @date 2020/10/28 2:52 下午