diff --git a/README.md b/README.md
index be40d1f..2fcb61c 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@
 - 阿里云仓库地址：https://github.com/GC0202/ThinkLibrary
 - CODING：https://liguangchun-01.coding.net/p/ThinkLibrary/d/ThinkLibrary/git
 - CODING：https://aizhineng.coding.net/p/ThinkLibrary/d/ThinkLibrary/git
-- https://liguangchundt.coding.net/p/ThinkLibrary/d/ThinkLibrary/git
+- 腾讯云：https://liguangchundt.coding.net/p/ThinkLibrary/d/ThinkLibrary/git
 - 微信：https://git.weixin.qq.com/liguangchun/ThinkLibrary
 - 华为云：https://codehub-cn-south-1.devcloud.huaweicloud.com/composer00001/ThinkLibrary.git
 
diff --git a/composer.json b/composer.json
index 597505e..ae1570d 100644
--- a/composer.json
+++ b/composer.json
@@ -31,6 +31,7 @@
     "ext-iconv": "*",
     "ext-curl": "*",
     "ext-dom": "*",
+    "ext-http": "*",
     "topthink/framework": "^6.0.0",
     "topthink/think-orm": "^2.0",
     "topthink/think-view": "^1.0",
diff --git a/src/cache/Mysql.php b/src/cache/Mysql.php
index 1a44f3d..287f381 100644
--- a/src/cache/Mysql.php
+++ b/src/cache/Mysql.php
@@ -131,11 +131,12 @@ class Mysql
     public function inc(int $int = 1)
     {
         $cache_value = (int)$this->get();
-        return Db::table($this->table)
+        $result = Db::table($this->table)
             ->where('cache_name', $this->cache_name)
             ->update([
                 'cache_value' => $cache_value + $int
             ]);
+        return $result ? true : false;
     }
 
     /**
@@ -148,10 +149,11 @@ class Mysql
     public function dec(int $int = 1)
     {
         $cache_value = (int)$this->get();
-        return Db::table($this->table)
+        $result = Db::table($this->table)
             ->where('cache_name', $this->cache_name)
             ->update([
                 'cache_value' => $cache_value - $int
             ]);
+        return $result ? true : false;
     }
 }
diff --git a/src/exception/ThinkException.php b/src/exception/ThinkException.php
new file mode 100644
index 0000000..4dfc036
--- /dev/null
+++ b/src/exception/ThinkException.php
@@ -0,0 +1,49 @@
+<?php
+
+// +----------------------------------------------------------------------
+// | ThinkLibrary 6.0 for ThinkPhP 6.0
+// +----------------------------------------------------------------------
+// | 版权所有 2017~2020 [ https://www.dtapp.net ]
+// +----------------------------------------------------------------------
+// | 官方网站: https://gitee.com/liguangchun/ThinkLibrary
+// +----------------------------------------------------------------------
+// | 开源协议 ( https://mit-license.org )
+// +----------------------------------------------------------------------
+// | gitee 仓库地址 ：https://gitee.com/liguangchun/ThinkLibrary
+// | github 仓库地址 ：https://github.com/GC0202/ThinkLibrary
+// | Packagist 地址 ：https://packagist.org/packages/liguangchun/think-library
+// +----------------------------------------------------------------------
+
+namespace DtApp\ThinkLibrary\exception;
+
+use HttpException;
+use think\exception\Handle;
+use think\exception\ValidateException;
+use think\Request;
+use think\Response;
+use Throwable;
+
+class ThinkException extends Handle
+{
+    /**
+     * 异常处理接管
+     * @param Request $request
+     * @param Throwable $e
+     * @return Response
+     */
+    public function render($request, Throwable $e): Response
+    {
+        // 参数验证错误
+        if ($e instanceof ValidateException) {
+            return json($e->getError(), 422);
+        }
+
+        // 请求异常
+        if ($e instanceof HttpException && $request->isAjax()) {
+            return response($e->getMessage(), $e->getStatusCode());
+        }
+
+        // 其他错误交给系统处理
+        return parent::render($request, $e);
+    }
+}