diff --git a/Test/mini-qrc.php b/Test/mini-qrc.php
new file mode 100644
index 0000000..55c43dd
--- /dev/null
+++ b/Test/mini-qrc.php
@@ -0,0 +1,20 @@
+<?php
+
+include '../include.php';
+
+// 小程序配置
+$config = [
+    'appid'     => 'wx6bb7b70258da09c6',
+    'appsecret' => '78b7b8d65bd67b078babf951d4342b42',
+];
+
+$mini = new WeMini\Qrcode($config);
+
+echo '<pre>';
+try {
+//    var_dump($mini->getCode('pages/index?query=1'));
+//    var_dump($mini->getCodeUnlimit('432432', 'pages/index/index'));
+//    var_dump($mini->createQrcode('pages/index?query=1'));
+} catch (Exception $e) {
+    var_dump($e->getMessage());
+}
diff --git a/WeChat/Contracts/BasicWeChat.php b/WeChat/Contracts/BasicWeChat.php
index 2ec029f..1af8ceb 100644
--- a/WeChat/Contracts/BasicWeChat.php
+++ b/WeChat/Contracts/BasicWeChat.php
@@ -122,6 +122,7 @@ class BasicWeChat
      * 以GET获取接口数据并转为数组
      * @param string $url 接口地址
      * @return array
+     * @throws \WeChat\Exceptions\InvalidResponseException
      */
     protected function httpGetForJson($url)
     {
@@ -133,6 +134,7 @@ class BasicWeChat
                 $this->isTry = true;
                 return call_user_func_array([$this, $this->currentMethod['method']], $this->currentMethod['arguments']);
             }
+            throw new InvalidResponseException($e->getMessage(), $e->getCode());
         }
     }
 
@@ -142,6 +144,7 @@ class BasicWeChat
      * @param array $data 请求数据
      * @param bool $buildToJson
      * @return array
+     * @throws \WeChat\Exceptions\InvalidResponseException
      */
     protected function httpPostForJson($url, array $data, $buildToJson = true)
     {
@@ -149,10 +152,10 @@ class BasicWeChat
             return Tools::json2arr(Tools::post($url, $buildToJson ? Tools::arr2json($data) : $data));
         } catch (InvalidResponseException $e) {
             if (!$this->isTry && in_array($e->getCode(), ['40014', '40001', '41001', '42001'])) {
-                $this->delAccessToken();
-                $this->isTry = true;
+                [$this->delAccessToken(), $this->isTry = true];
                 return call_user_func_array([$this, $this->currentMethod['method']], $this->currentMethod['arguments']);
             }
+            throw new InvalidResponseException($e->getMessage(), $e->getCode());
         }
     }
 
diff --git a/WeMini/Qrcode.php b/WeMini/Qrcode.php
index 217d4d5..7fec035 100644
--- a/WeMini/Qrcode.php
+++ b/WeMini/Qrcode.php
@@ -15,6 +15,7 @@
 namespace WeMini;
 
 use WeChat\Contracts\BasicWeChat;
+use WeChat\Contracts\Tools;
 
 /**
  * 微信小程序二维码管理
@@ -31,16 +32,17 @@ class Qrcode extends BasicWeChat
      * @param integer $width 二维码的宽度
      * @param bool $auto_color 自动配置线条颜色，如果颜色依然是黑色，则说明不建议配置主色调
      * @param array $line_color auto_color 为 false 时生效
-     * @return array
+     * @return array|string
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
      */
     public function getCode($path, $width = 430, $auto_color = false, $line_color = ["r" => "0", "g" => "0", "b" => "0"])
     {
-        $url = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=ACCESS_TOKEN';
+        $url = 'https://api.weixin.qq.com/wxa/getwxacode?access_token=ACCESS_TOKEN';
         $this->registerApi($url, __FUNCTION__, func_get_args());
-        $data = ['path' => $path, 'width' => $width, 'auto_color' => false, 'line_color' => $line_color];
-        return $this->callPostApi($url, $data, true);
+        $data = ['path' => $path, 'width' => $width, 'auto_color' => $auto_color, 'line_color' => $line_color];
+        $result = Tools::post($url, Tools::arr2json($data));
+        return strlen($result) > 256 ? $result : Tools::json2arr($result);
     }
 
     /**
@@ -51,16 +53,17 @@ class Qrcode extends BasicWeChat
      * @param integer $width 二维码的宽度
      * @param bool $auto_color 自动配置线条颜色，如果颜色依然是黑色，则说明不建议配置主色调
      * @param array $line_color auto_color 为 false 时生效
-     * @return array
+     * @return array|string
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
      */
     public function getCodeUnlimit($scene, $page, $width = 430, $auto_color = false, $line_color = ["r" => "0", "g" => "0", "b" => "0"])
     {
         $url = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=ACCESS_TOKEN';
+        $data = ['scene' => $scene, 'width' => $width, 'auto_color' => $auto_color, 'page' => $page, 'line_color' => $line_color];
         $this->registerApi($url, __FUNCTION__, func_get_args());
-        $data = ['scene' => $scene, 'width' => $width, 'auto_color' => false, 'line_color' => $line_color];
-        return $this->callPostApi($url, $data, true);
+        $result = Tools::post($url, Tools::arr2json($data));
+        return strlen($result) > 256 ? $result : Tools::json2arr($result);
     }
 
     /**
@@ -68,7 +71,7 @@ class Qrcode extends BasicWeChat
      * 接口C：适用于需要的码数量较少的业务场景
      * @param string $path 不能为空，最大长度 128 字节
      * @param integer $width 二维码的宽度
-     * @return array
+     * @return array|string
      * @throws \WeChat\Exceptions\InvalidResponseException
      * @throws \WeChat\Exceptions\LocalCacheException
      */
@@ -76,7 +79,8 @@ class Qrcode extends BasicWeChat
     {
         $url = 'https://api.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=ACCESS_TOKEN';
         $this->registerApi($url, __FUNCTION__, func_get_args());
-        return $this->callPostApi($url, ['path' => $path, 'width' => $width], true);
+        $result = Tools::post($url, Tools::arr2json(['path' => urlencode($path), 'width' => $width]));
+        return strlen($result) > 256 ? $result : Tools::json2arr($result);
     }
 
 }
\ No newline at end of file