diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/SaManager.java b/sa-token-core/src/main/java/cn/dev33/satoken/SaManager.java
index a2dea029..1fb7c22e 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/SaManager.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/SaManager.java
@@ -103,9 +103,12 @@ public class SaManager {
 	}
 	private static void setSaTokenDaoMethod(SaTokenDao saTokenDao) {
 		if (SaManager.saTokenDao != null) {
-			SaManager.saTokenDao.onChange();
+			SaManager.saTokenDao.destroy();
 		}
 		SaManager.saTokenDao = saTokenDao;
+		if (SaManager.saTokenDao != null) {
+			SaManager.saTokenDao.init();
+		}
 	}
 	public static SaTokenDao getSaTokenDao() {
 		if (saTokenDao == null) {
diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDao.java b/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDao.java
index 75a46cd4..571b9874 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDao.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDao.java
@@ -201,11 +201,18 @@ public interface SaTokenDao {
 	List<String> searchData(String prefix, String keyword, int start, int size, boolean sortType);
 
 
-	// --------------------- 实例相关 ---------------------
+	// --------------------- 生命周期 ---------------------
 
 	/**
-	 * 当 SaManager.saTokenDao 变更时，调用该方法
+	 * 当此 SaTokenDao 实例被装载时触发
 	 */
-	default void onChange() {
+	default void init() {
 	}
+
+	/**
+	 * 当此 SaTokenDao 实例被卸载时触发
+	 */
+	default void destroy() {
+	}
+
 }
diff --git a/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDaoDefaultImpl.java b/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDaoDefaultImpl.java
index eae8d6e9..c4be1998 100644
--- a/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDaoDefaultImpl.java
+++ b/sa-token-core/src/main/java/cn/dev33/satoken/dao/SaTokenDaoDefaultImpl.java
@@ -40,14 +40,6 @@ public class SaTokenDaoDefaultImpl implements SaTokenDao {
 	 * 存储数据过期时间的集合（单位: 毫秒）, 记录所有 key 的到期时间 （注意存储的是到期时间，不是剩余存活时间）
 	 */
 	public Map<String, Long> expireMap = new ConcurrentHashMap<>();
-
-	/**
-	 * 构造函数
-	 */
-	public SaTokenDaoDefaultImpl() {
-		initRefreshThread();
-	}
-	
 	
 	// ------------------------ String 读写操作 
 	
@@ -261,11 +253,20 @@ public class SaTokenDaoDefaultImpl implements SaTokenDao {
 		this.refreshThread.start();
 	}
 
+
 	/**
-	 * 结束定时任务，不再定时清理过期数据
+	 * 组件被安装时，开始刷新数据线程
 	 */
 	@Override
-	public void onChange() {
+	public void init() {
+		initRefreshThread();
+	}
+
+	/**
+	 * 组件被卸载时，结束定时任务，不再定时清理过期数据
+	 */
+	@Override
+	public void destroy() {
 		this.refreshFlag = false;
 	}
 }