diff --git a/app/common/server/Wx.php b/app/common/server/Wx.php
index 1e80997..48cf78c 100755
--- a/app/common/server/Wx.php
+++ b/app/common/server/Wx.php
@@ -171,25 +171,35 @@ class Wx extends MyController
      */
     public function get_access_token()
     {
-        #信息
-        $access_token_info = getConfig('access_token');
-        if ($access_token_info && $access_token_info['access_token_time'] > time()) {
-            $access_token = $access_token_info['access_token'];
-        } else {
-            $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . self::$wx_appid . "&secret=" . self::$wx_secret;
-            $res_access_token = $this->get_curl_data($url);
-            if (isset($res_access_token['errcode'])) {
-                return $this->renderError('获取失败');
+        $redis = new \Redis();
+        $redis->connect('127.0.0.1', 6379);
+        $redis_key = 'wx_access_token';
+
+        $access_token_info = $redis->get($redis_key);
+        if ($access_token_info) {
+            $access_token_info = json_decode($access_token_info, true);
+            if ($access_token_info['access_token_time'] > time()) {
+                return $access_token_info['access_token'];
             }
-            $access_token = $res_access_token['access_token'];
-            $expires_in = $res_access_token['expires_in'];
-            $access_token_time = time() + 3600;
-            $data = [
-                'access_token' => $access_token,
-                'access_token_time' => $access_token_time,
-            ];
-            setConfig('access_token', $data);
         }
+
+        $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" . self::$wx_appid . "&secret=" . self::$wx_secret;
+        $res_access_token = $this->get_curl_data($url);
+        if (isset($res_access_token['errcode'])) {
+            return $this->renderError('获取失败');
+        }
+
+        $access_token = $res_access_token['access_token'];
+        $expires_in = $res_access_token['expires_in'];
+        $access_token_time = time() + $expires_in;
+
+        $data = [
+            'access_token' => $access_token,
+            'access_token_time' => $access_token_time,
+        ];
+
+        $redis->set($redis_key, json_encode($data), $expires_in);
+
         return $access_token;
     }