diff --git a/src/cache/Mysql.php b/src/cache/Mysql.php
index 9f771975e7cb8bb98014182969587d0af9d6ae3b..915576fa3126719f8b6336a4b2ac31a4d189f487 100644
--- a/src/cache/Mysql.php
+++ b/src/cache/Mysql.php
@@ -21,9 +21,7 @@ namespace DtApp\ThinkLibrary\cache;
 
 use DtApp\ThinkLibrary\exception\DtaException;
 use DtApp\ThinkLibrary\facade\Times;
-use think\db\exception\DbException;
 use think\facade\Db;
-use think\Model;
 
 /**
  * 缓存数据库驱动
@@ -60,7 +58,7 @@ class Mysql
     /**
      * 设置
      * @param $cache_value
-     * @return int|string
+     * @return bool
      * @throws DtaException
      */
     public function set($cache_value)
@@ -77,7 +75,7 @@ class Mysql
 
     /**
      * 获取
-     * @return array|Model|null
+     * @return mixed
      * @throws DtaException
      */
     public function get()
@@ -92,8 +90,9 @@ class Mysql
 
     /**
      * 删除
-     * @return int
-     * @throws DbException|DtaException
+     * @return bool
+     * @throws DtaException
+     * @throws \think\db\exception\DbException
      */
     public function delete()
     {
@@ -107,8 +106,9 @@ class Mysql
     /**
      * 更新
      * @param $cache_value
-     * @return int
-     * @throws DbException|DtaException
+     * @return bool
+     * @throws DtaException
+     * @throws \think\db\exception\DbException
      */
     public function update($cache_value)
     {
@@ -125,9 +125,9 @@ class Mysql
     /**
      * 自增
      * @param int $int
-     * @return int
-     * @throws DbException
+     * @return bool
      * @throws DtaException
+     * @throws \think\db\exception\DbException
      */
     public function inc(int $int = 1)
     {
@@ -143,9 +143,9 @@ class Mysql
     /**
      * 自减
      * @param int $int
-     * @return int
-     * @throws DbException
+     * @return bool
      * @throws DtaException
+     * @throws \think\db\exception\DbException
      */
     public function dec(int $int = 1)
     {
diff --git a/src/helper/Xmls.php b/src/helper/Xmls.php
index c1f9cabc4022b318eee9ff13ef7408372db5f3a5..67fec0d789acc25d4ccc83392c18685deb9d6d14 100644
--- a/src/helper/Xmls.php
+++ b/src/helper/Xmls.php
@@ -22,7 +22,6 @@ declare (strict_types=1);
 namespace DtApp\ThinkLibrary\helper;
 
 use DtApp\ThinkLibrary\exception\DtaException;
-use think\Exception;
 
 /**
  * XML管理类
@@ -36,7 +35,6 @@ class Xmls
      * @param array $values 数组
      * @return string
      * @throws DtaException
-     * @throws Exception
      */
     public function toXml(array $values)
     {
diff --git a/src/session/Mysql.php b/src/session/Mysql.php
index e1f90a372fe238c978fd3a6c4049c8f485282597..63535f3dc16c958f3ce8b488b236607123680710 100644
--- a/src/session/Mysql.php
+++ b/src/session/Mysql.php
@@ -21,11 +21,9 @@ namespace DtApp\ThinkLibrary\session;
 
 use DtApp\ThinkLibrary\facade\Times;
 use think\contract\SessionHandlerInterface;
-use think\db\exception\DataNotFoundException;
-use think\db\exception\DbException;
-use think\db\exception\ModelNotFoundException;
 use think\facade\Db;
 
+
 /**
  * Session保存在MySQL驱动
  * Class Mysql
@@ -67,7 +65,7 @@ class Mysql implements SessionHandlerInterface
      * delete方法是在销毁会话的时候执行（调用Session::destroy()方法）。
      * @param string $sessionId
      * @return bool
-     * @throws DbException
+     * @throws \think\db\exception\DbException
      */
     public function delete(string $sessionId): bool
     {
@@ -82,9 +80,9 @@ class Mysql implements SessionHandlerInterface
      * @param string $sessionId
      * @param string $data
      * @return bool
-     * @throws DataNotFoundException
-     * @throws DbException
-     * @throws ModelNotFoundException
+     * @throws \think\db\exception\DataNotFoundException
+     * @throws \think\db\exception\DbException
+     * @throws \think\db\exception\ModelNotFoundException
      */
     public function write(string $sessionId, string $data): bool
     {