diff --git a/composer.json b/composer.json
index d4fc7b8..8c43ad0 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
     ],
     "license": "MIT",
     "require": {
-        "php": ">=7.0",
+        "php": ">=7.1",
         "ext-fileinfo": "*",
         "ext-openssl": "*",
         "ext-simplexml": "*",
diff --git a/src/Base/Oauth/Client.php b/src/Base/Oauth/Client.php
index 1d02705..246780b 100755
--- a/src/Base/Oauth/Client.php
+++ b/src/Base/Oauth/Client.php
@@ -7,6 +7,17 @@ use EasyAlipay\Base\Model\AlipaySystemOauthTokenRequest;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $grant_type
+     * @param string $code
+     * @param string $refresh_token
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function getToken(string $grant_type, string $code, string $refresh_token)
     {
         //构造查询业务请求参数对象
diff --git a/src/Kernel/AopClient.php b/src/Kernel/AopClient.php
index 1faff67..89646e1 100755
--- a/src/Kernel/AopClient.php
+++ b/src/Kernel/AopClient.php
@@ -2,13 +2,18 @@
 
 namespace EasyAlipay\Kernel;
 
+use EasyAlipay\Kernel\Exceptions\BadRequestException;
+use EasyAlipay\Kernel\Exceptions\InvalidArgumentException;
 use EasyAlipay\Kernel\Exceptions\InvalidConfigException;
-use function EasyAlipay\Kernel\encrypt;
+use EasyAlipay\Kernel\Exceptions\InvalidSignException;
+use EasyAlipay\Kernel\Support\Collection;
+use EasyAlipay\Kernel\Traits\SingData;
 use Exception;
-use EasyAlipay\Kernel\SignData;
 
 class AopClient extends BaseClient
 {
+    use SingData;
+
     //应用ID
     private $appId;
     //商户私钥值
@@ -21,19 +26,11 @@ class AopClient extends BaseClient
     private $format = "json";
     //签名类型
     private $signType = "RSA";
-    // 表单提交字符集编码
-    private $postCharset = "UTF-8";
     //api版本
     private $apiVersion = "1.0";
-    //私钥文件路径
-    private $rsaPrivateKeyFilePath;
-
-    private $alipayPublicKey = null;
 
     private $debugInfo = false;
 
-    private $fileCharset = "UTF-8";
-
     private $RESPONSE_SUFFIX = "_response";
 
     private $ERROR_RESPONSE = "error_response";
@@ -50,6 +47,11 @@ class AopClient extends BaseClient
 
     protected $alipaySdkVersion = "alipay-sdk-php-easyalipay-20190820";
 
+    /**
+     * AopClient constructor.
+     * @param ServiceContainer $app
+     * @throws InvalidConfigException
+     */
     public function __construct(ServiceContainer $app)
     {
         parent::__construct($app);
@@ -59,8 +61,7 @@ class AopClient extends BaseClient
         $this->alipayrsaPublicKey = $app['config']['alipay_public_key'];
         $this->postCharset = $app['config']['charset'];
         $this->signType = $app['config']['sign_type'];
-        $this->gatewayUrl = $app['config']['gateway_url'];
-
+        $this->encryptKey = $app['config']['encrypt_key'];
         if (empty($this->appId) || trim($this->appId) == "") {
             throw new InvalidConfigException("appId should not be NULL!");
         }
@@ -70,31 +71,27 @@ class AopClient extends BaseClient
         if (empty($this->alipayrsaPublicKey) || trim($this->alipayrsaPublicKey) == "") {
             throw new InvalidConfigException("alipayPublicKey should not be NULL!");
         }
-        if (empty($this->postCharset) || trim($this->postCharset) == "") {
-            throw new InvalidConfigException("postCharset should not be NULL!");
-        }
         if (empty($this->signType) || trim($this->signType) == "") {
             throw new InvalidConfigException("signType should not be NULL!");
         }
-        if (empty($this->gatewayUrl) || trim($this->gatewayUrl) == "") {
-            throw new InvalidConfigException("gatewayUrl should not be NULL!");
-        }
     }
 
     /**
      * @param AopRequest $request
      * @param null $authToken
      * @param null $appInfoAuthtoken
-     * @return bool|mixed|\SimpleXMLElement
+     * @return Collection
+     * @throws BadRequestException
+     * @throws InvalidArgumentException
+     * @throws InvalidConfigException
+     * @throws InvalidSignException
      * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public function execute(AopRequest $request, $authToken = null, $appInfoAuthtoken = null)
     {
         $this->setupCharsets($request);
-        //如果两者编码不一致，会出现签名验签或者乱码
         if (strcasecmp($this->fileCharset, $this->postCharset)) {
-            // writeLog("本地文件字符集编码与表单提交编码不一致，请务必设置成一样，属性名分别为postCharset!");
-            throw new Exception("文件编码：[" . $this->fileCharset . "] 与表单提交编码：[" . $this->postCharset . "]两者不一致!");
+            throw new InvalidConfigException("文件编码：[" . $this->fileCharset . "] 与表单提交编码：[" . $this->postCharset . "]两者不一致!");
         }
         $iv = null;
         if (!$this->checkEmpty($request->getApiVersion())) {
@@ -102,7 +99,6 @@ class AopClient extends BaseClient
         } else {
             $iv = $this->apiVersion;
         }
-        //组装系统参数
         $sysParams["app_id"] = $this->appId;
         $sysParams["version"] = $iv;
         $sysParams["format"] = $this->format;
@@ -122,13 +118,13 @@ class AopClient extends BaseClient
         if (method_exists($request, "getNeedEncrypt") && $request->getNeedEncrypt()) {
             $sysParams["encrypt_type"] = $this->encryptType;
             if ($this->checkEmpty($apiParams['biz_content'])) {
-                throw new Exception(" api request Fail! The reason : encrypt request is not supperted!");
+                throw new InvalidArgumentException(" api request Fail! The reason : encrypt request is not supperted!");
             }
             if ($this->checkEmpty($this->encryptKey) || $this->checkEmpty($this->encryptType)) {
-                throw new Exception(" encryptType and encryptKey must not null! ");
+                throw new InvalidArgumentException(" encryptType and encryptKey must not null! ");
             }
             if ("AES" != $this->encryptType) {
-                throw new Exception("加密类型只支持AES");
+                throw new InvalidArgumentException("加密类型只支持AES");
             }
             // 执行加密
             $enCryptContent = encrypt($apiParams['biz_content'], $this->encryptKey);
@@ -136,401 +132,53 @@ class AopClient extends BaseClient
         }
         //签名
         $sysParams["sign"] = $this->generateSign(array_merge($apiParams, $sysParams), $this->signType);
-        //系统参数放入GET请求串
-        $requestUrl = $this->gatewayUrl . "?";
-        foreach ($sysParams as $sysParamKey => $sysParamValue) {
-            $requestUrl .= "$sysParamKey=" . urlencode($this->characet($sysParamValue, $this->postCharset)) . "&";
-        }
-        $requestUrl = substr($requestUrl, 0, -1);
-        //发起HTTP请求
-        try {
-            $resp = $this->httpPost($requestUrl, $apiParams);
-            var_dump($resp);die;
-        } catch (Exception $e) {
-            var_dump($e->getMessage());die;
-            return false;
-        }
-        //解析AOP返回结果
-        $respWellFormed = false;
-        // 将返回结果转换本地文件编码
-//        $r = iconv($this->postCharset, $this->fileCharset . "//IGNORE", $resp);
-        $signData = null;
-        if ("json" == $this->format) {
-            $respObject = $resp;
-            if (null !== $respObject) {
-                $respWellFormed = true;
-                $signData = $this->parserJSONSignData($request, $resp, $respObject);
-                var_dump($signData);die;
-            }
-        } else if ("xml" == $this->format) {
-            $disableLibxmlEntityLoader = libxml_disable_entity_loader(true);
-            $respObject = @ simplexml_load_string($resp);
-            if (false !== $respObject) {
-                $respWellFormed = true;
-                $signData = $this->parserXMLSignData($request, $resp);
-            }
-            libxml_disable_entity_loader($disableLibxmlEntityLoader);
-        }
-        //返回的HTTP文本不是标准JSON或者XML，记下错误日志
-        if (false === $respWellFormed) {
-            return false;
-        }
-        // 验签
-        $this->checkResponseSign($request, $signData, $resp, $respObject);
-        // 解密
-        if (method_exists($request, "getNeedEncrypt") && $request->getNeedEncrypt()) {
-            if ("json" == $this->format) {
-                $resp = $this->encryptJSONSignSource($request, $resp);
-                // 将返回结果转换本地文件编码
-                $r = iconv($this->postCharset, $this->fileCharset . "//IGNORE", $resp);
-                $respObject = json_decode($r);
-            } else {
-                $resp = $this->encryptXMLSignSource($request, $resp);
-                $r = iconv($this->postCharset, $this->fileCharset . "//IGNORE", $resp);
-                $disableLibxmlEntityLoader = libxml_disable_entity_loader(true);
-                $respObject = @ simplexml_load_string($r);
-                libxml_disable_entity_loader($disableLibxmlEntityLoader);
-            }
-        }
-        return $respObject;
-    }
-
-
-    public function generateSign($params, $signType = "RSA")
-    {
-        return $this->sign($this->getSignContent($params), $signType);
-    }
-
-    public function getSignContent($params)
-    {
-        ksort($params);
-        $stringToBeSigned = "";
-        $i = 0;
-        foreach ($params as $k => $v) {
-            if (false === $this->checkEmpty($v) && "@" != substr($v, 0, 1)) {
-                // 转换成目标字符集
-                $v = $this->characet($v, $this->postCharset);
-
-                if ($i == 0) {
-                    $stringToBeSigned .= "$k" . "=" . "$v";
-                } else {
-                    $stringToBeSigned .= "&" . "$k" . "=" . "$v";
-                }
-                $i++;
-            }
-        }
-        unset ($k, $v);
-        return $stringToBeSigned;
-    }
-
-    protected function sign($data, $signType = "RSA")
-    {
-        if ($this->checkEmpty($this->rsaPrivateKeyFilePath)) {
-            $priKey = $this->rsaPrivateKey;
-            $res = "-----BEGIN RSA PRIVATE KEY-----\n" .
-                wordwrap($priKey, 64, "\n", true) .
-                "\n-----END RSA PRIVATE KEY-----";
-        } else {
-            $priKey = file_get_contents($this->rsaPrivateKeyFilePath);
-            $res = openssl_get_privatekey($priKey);
-        }
-        ($res) or die('您使用的私钥格式错误，请检查RSA私钥配置');
-        if ("RSA2" == $signType) {
-            openssl_sign($data, $sign, $res, OPENSSL_ALGO_SHA256);
-        } else {
-            openssl_sign($data, $sign, $res);
-        }
-        if (!$this->checkEmpty($this->rsaPrivateKeyFilePath)) {
-            openssl_free_key($res);
-        }
-        $sign = base64_encode($sign);
-        return $sign;
-    }
-
-
-    protected function curl($url, $postFields = null)
-    {
-        $ch = curl_init();
-        curl_setopt($ch, CURLOPT_URL, $url);
-        curl_setopt($ch, CURLOPT_FAILONERROR, false);
-        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
-        $postBodyString = "";
-        $encodeArray = Array();
-        $postMultipart = false;
-        if (is_array($postFields) && 0 < count($postFields)) {
-            foreach ($postFields as $k => $v) {
-                if ("@" != substr($v, 0, 1)) //判断是不是文件上传
-                {
-                    $postBodyString .= "$k=" . urlencode($this->characet($v, $this->postCharset)) . "&";
-                    $encodeArray[$k] = $this->characet($v, $this->postCharset);
-                } else //文件上传用multipart/form-data，否则用www-form-urlencoded
-                {
-                    $postMultipart = true;
-                    $encodeArray[$k] = new \CURLFile(substr($v, 1));
-                }
-            }
-            unset ($k, $v);
-            curl_setopt($ch, CURLOPT_POST, true);
-            if ($postMultipart) {
-                curl_setopt($ch, CURLOPT_POSTFIELDS, $encodeArray);
-            } else {
-                curl_setopt($ch, CURLOPT_POSTFIELDS, substr($postBodyString, 0, -1));
-            }
-        }
-        if ($postMultipart) {
-            $headers = array('content-type: multipart/form-data;charset=' . $this->postCharset . ';boundary=' . $this->getMillisecond());
-        } else {
-            $headers = array('content-type: application/x-www-form-urlencoded;charset=' . $this->postCharset);
+        $requestUrl = $this->buildRequestUrl($sysParams);
+        $result = $this->httpPost($requestUrl, $apiParams);
+        $apiName = $request->getApiMethodName();
+        $method = str_replace(".", "_", $apiName) . $this->RESPONSE_SUFFIX;
+        if (!isset($result[$this->SIGN_NODE_NAME]) || $result[$method]['code'] != '10000') {
+            throw new BadRequestException(
+                'Get Alipay API Error:' . $result[$method]['msg'] .
+                (isset($result[$method]['sub_code']) ? (' - ' . $result[$method]['sub_code']) : '')
+            );
         }
-        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
-        $reponse = curl_exec($ch);
-        if (curl_errno($ch)) {
-            throw new Exception(curl_error($ch), 0);
-        } else {
-            $httpStatusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
-            if (200 !== $httpStatusCode) {
-                throw new Exception($reponse, $httpStatusCode);
-            }
+        if (!$this->verify($result[$method], $result[$this->SIGN_NODE_NAME], $this->alipayrsaPublicKey, $this->signType)) {
+            throw new InvalidSignException('签名失败');
         }
-        curl_close($ch);
-        return $reponse;
-    }
-
-    protected function getMillisecond()
-    {
-        list($s1, $s2) = explode(' ', microtime());
-        return (float)sprintf('%.0f', (floatval($s1) + floatval($s2)) * 1000);
+        return new Collection($result[$method]);
     }
 
     /**
-     * 转换字符集编码
-     * @param $data
-     * @param $targetCharset
-     * @return string
+     * 构造请求url
+     * @param $sysParams
+     * @return false|string
      */
-    function characet($data, $targetCharset)
+    public function buildRequestUrl($sysParams)
     {
-        if (!empty($data)) {
-            $fileType = $this->fileCharset;
-            if (strcasecmp($fileType, $targetCharset) != 0) {
-                $data = mb_convert_encoding($data, $targetCharset, $fileType);
-                //              $data = iconv($fileType, $targetCharset.'//IGNORE', $data);
-            }
+        $requestUrl = $this->gatewayUrl . "?";
+        foreach ($sysParams as $sysParamKey => $sysParamValue) {
+            $requestUrl .= "$sysParamKey=" . urlencode($this->characet($sysParamValue, $this->postCharset)) . "&";
         }
-        return $data;
+        $requestUrl = substr($requestUrl, 0, -1);
+        return $requestUrl;
     }
 
     /**
-     * 校验$value是否非空
-     *  if not set ,return true;
-     *    if is null , return true;
-     **/
-    protected function checkEmpty($value)
-    {
-        if (!isset($value))
-            return true;
-        if ($value === null)
-            return true;
-        if (trim($value) === "")
-            return true;
-        return false;
-    }
-
-
-    public function rsaCheckV2($params, $rsaPublicKeyFilePath, $signType = 'RSA')
-    {
-        $sign = $params['sign'];
-        $params['sign'] = null;
-        return $this->verify($this->getSignContent($params), $sign, $rsaPublicKeyFilePath, $signType);
-    }
-
-    function verify($data, $sign, $rsaPublicKeyFilePath, $signType = 'RSA')
-    {
-        if ($this->checkEmpty($this->alipayPublicKey)) {
-            $pubKey = $this->alipayrsaPublicKey;
-            $res = "-----BEGIN PUBLIC KEY-----\n" .
-                wordwrap($pubKey, 64, "\n", true) .
-                "\n-----END PUBLIC KEY-----";
-        } else {
-            //读取公钥文件
-            $pubKey = file_get_contents($rsaPublicKeyFilePath);
-            //转换为openssl格式密钥
-            $res = openssl_get_publickey($pubKey);
-        }
-        ($res) or die('支付宝RSA公钥错误。请检查公钥文件格式是否正确');
-        //调用openssl内置方法验签，返回bool值
-        $result = FALSE;
-        if ("RSA2" == $signType) {
-            $result = (openssl_verify($data, base64_decode($sign), $res, OPENSSL_ALGO_SHA256) === 1);
-        } else {
-            $result = (openssl_verify($data, base64_decode($sign), $res) === 1);
-        }
-        if (!$this->checkEmpty($this->alipayPublicKey)) {
-            //释放资源
-            openssl_free_key($res);
-        }
-        return $result;
-    }
-
-
-    function parserResponseSubCode($request, $responseContent, $respObject, $format)
-    {
-        if ("json" == $format) {
-            $apiName = $request->getApiMethodName();
-            $rootNodeName = str_replace(".", "_", $apiName) . $this->RESPONSE_SUFFIX;
-            $errorNodeName = $this->ERROR_RESPONSE;
-            $rootIndex = strpos($responseContent, $rootNodeName);
-            $errorIndex = strpos($responseContent, $errorNodeName);
-            if ($rootIndex > 0) {
-                // 内部节点对象
-                $rInnerObject = $respObject->$rootNodeName;
-            } elseif ($errorIndex > 0) {
-                $rInnerObject = $respObject->$errorNodeName;
-            } else {
-                return null;
-            }
-            // 存在属性则返回对应值
-            if (isset($rInnerObject->sub_code)) {
-                return $rInnerObject->sub_code;
-            } else {
-                return null;
-            }
-        } elseif ("xml" == $format) {
-            // xml格式sub_code在同一层级
-            return $respObject->sub_code;
-        }
-    }
-
-    function parserJSONSignData($request, $responseContent, $responseJSON)
-    {
-        $signData = new SignData();
-        $signData->sign = $this->parserJSONSign($responseJSON);
-        $signData->signSourceData = $this->parserJSONSignSource($request, $responseContent);
-        return $signData;
-    }
-
-    function parserJSONSignSource($request, $responseContent)
-    {
-        $apiName = $request->getApiMethodName();
-        $rootNodeName = str_replace(".", "_", $apiName) . $this->RESPONSE_SUFFIX;
-        $rootIndex = strpos($responseContent, $rootNodeName);
-        $errorIndex = strpos($responseContent, $this->ERROR_RESPONSE);
-        if ($rootIndex > 0) {
-            return $this->parserJSONSource($responseContent, $rootNodeName, $rootIndex);
-        } else if ($errorIndex > 0) {
-            return $this->parserJSONSource($responseContent, $this->ERROR_RESPONSE, $errorIndex);
-        } else {
-            return null;
-        }
-    }
-
-    function parserJSONSource($responseContent, $nodeName, $nodeIndex)
-    {
-        $signDataStartIndex = $nodeIndex + strlen($nodeName) + 2;
-        $signIndex = strrpos($responseContent, "\"" . $this->SIGN_NODE_NAME . "\"");
-        // 签名前-逗号
-        $signDataEndIndex = $signIndex - 1;
-        $indexLen = $signDataEndIndex - $signDataStartIndex;
-        if ($indexLen < 0) {
-            return null;
-        }
-        return substr($responseContent, $signDataStartIndex, $indexLen);
-    }
-
-    function parserJSONSign($responseJSon)
-    {
-        return $responseJSon->sign;
-    }
-
-    function parserXMLSignData($request, $responseContent)
-    {
-        $signData = new SignData();
-        $signData->sign = $this->parserXMLSign($responseContent);
-        $signData->signSourceData = $this->parserXMLSignSource($request, $responseContent);
-        return $signData;
-    }
-
-    function parserXMLSignSource($request, $responseContent)
-    {
-        $apiName = $request->getApiMethodName();
-        $rootNodeName = str_replace(".", "_", $apiName) . $this->RESPONSE_SUFFIX;
-        $rootIndex = strpos($responseContent, $rootNodeName);
-        $errorIndex = strpos($responseContent, $this->ERROR_RESPONSE);
-        if ($rootIndex > 0) {
-            return $this->parserXMLSource($responseContent, $rootNodeName, $rootIndex);
-        } else if ($errorIndex > 0) {
-            return $this->parserXMLSource($responseContent, $this->ERROR_RESPONSE, $errorIndex);
-        } else {
-            return null;
-        }
-    }
-
-    function parserXMLSource($responseContent, $nodeName, $nodeIndex)
-    {
-        $signDataStartIndex = $nodeIndex + strlen($nodeName) + 1;
-        $signIndex = strrpos($responseContent, "<" . $this->SIGN_NODE_NAME . ">");
-        // 签名前-逗号
-        $signDataEndIndex = $signIndex - 1;
-        $indexLen = $signDataEndIndex - $signDataStartIndex + 1;
-        if ($indexLen < 0) {
-            return null;
-        }
-        return substr($responseContent, $signDataStartIndex, $indexLen);
-    }
-
-    function parserXMLSign($responseContent)
+     * 获取签名数据
+     * @param $params
+     * @param string $signType
+     * @return string
+     * @throws InvalidConfigException
+     */
+    public function generateSign($params, $signType = "RSA")
     {
-        $signNodeName = "<" . $this->SIGN_NODE_NAME . ">";
-        $signEndNodeName = "</" . $this->SIGN_NODE_NAME . ">";
-        $indexOfSignNode = strpos($responseContent, $signNodeName);
-        $indexOfSignEndNode = strpos($responseContent, $signEndNodeName);
-        if ($indexOfSignNode < 0 || $indexOfSignEndNode < 0) {
-            return null;
-        }
-        $nodeIndex = ($indexOfSignNode + strlen($signNodeName));
-        $indexLen = $indexOfSignEndNode - $nodeIndex;
-        if ($indexLen < 0) {
-            return null;
-        }
-        // 签名
-        return substr($responseContent, $nodeIndex, $indexLen);
+        return $this->sign($this->getSignContent($params), $this->rsaPrivateKey, $signType);
     }
 
     /**
-     * 验签
-     * @param $request
-     * @param $signData
-     * @param $resp
-     * @param $respObject
-     * @throws Exception
+     * @param AopRequest $request
      */
-    public function checkResponseSign(AopRequest $request, $signData, $resp, $respObject)
-    {
-        if (!$this->checkEmpty($this->alipayPublicKey) || !$this->checkEmpty($this->alipayrsaPublicKey)) {
-            if ($signData == null || $this->checkEmpty($signData->sign) || $this->checkEmpty($signData->signSourceData)) {
-                throw new Exception(" check sign Fail! The reason : signData is Empty");
-            }
-            // 获取结果sub_code
-            $responseSubCode = $this->parserResponseSubCode($request, $resp, $respObject, $this->format);
-            if (!$this->checkEmpty($responseSubCode) || ($this->checkEmpty($responseSubCode) && !$this->checkEmpty($signData->sign))) {
-                $checkResult = $this->verify($signData->signSourceData, $signData->sign, $this->alipayPublicKey, $this->signType);
-                if (!$checkResult) {
-                    if (strpos($signData->signSourceData, "\\/") > 0) {
-                        $signData->signSourceData = str_replace("\\/", "/", $signData->signSourceData);
-                        $checkResult = $this->verify($signData->signSourceData, $signData->sign, $this->alipayPublicKey, $this->signType);
-                        if (!$checkResult) {
-                            throw new Exception("check sign Fail! [sign=" . $signData->sign . ", signSourceData=" . $signData->signSourceData . "]");
-                        }
-                    } else {
-                        throw new Exception("check sign Fail! [sign=" . $signData->sign . ", signSourceData=" . $signData->signSourceData . "]");
-                    }
-                }
-            }
-        }
-    }
-
-    private function setupCharsets($request)
+    private function setupCharsets(AopRequest $request)
     {
         if ($this->checkEmpty($this->postCharset)) {
             $this->postCharset = 'UTF-8';
@@ -538,108 +186,4 @@ class AopClient extends BaseClient
         $str = preg_match('/[\x80-\xff]/', $this->appId) ? $this->appId : print_r($request, true);
         $this->fileCharset = mb_detect_encoding($str, "UTF-8, GBK") == 'UTF-8' ? 'UTF-8' : 'GBK';
     }
-
-    // 获取加密内容
-
-    private function encryptJSONSignSource($request, $responseContent)
-    {
-        $parsetItem = $this->parserEncryptJSONSignSource($request, $responseContent);
-        $bodyIndexContent = substr($responseContent, 0, $parsetItem->startIndex);
-        $bodyEndContent = substr($responseContent, $parsetItem->endIndex, strlen($responseContent) + 1 - $parsetItem->endIndex);
-        $bizContent = decrypt($parsetItem->encryptContent, $this->encryptKey);
-        return $bodyIndexContent . $bizContent . $bodyEndContent;
-    }
-
-
-    private function parserEncryptJSONSignSource($request, $responseContent)
-    {
-        $apiName = $request->getApiMethodName();
-        $rootNodeName = str_replace(".", "_", $apiName) . $this->RESPONSE_SUFFIX;
-        $rootIndex = strpos($responseContent, $rootNodeName);
-        $errorIndex = strpos($responseContent, $this->ERROR_RESPONSE);
-        if ($rootIndex > 0) {
-            return $this->parserEncryptJSONItem($responseContent, $rootNodeName, $rootIndex);
-        } else if ($errorIndex > 0) {
-            return $this->parserEncryptJSONItem($responseContent, $this->ERROR_RESPONSE, $errorIndex);
-        } else {
-            return null;
-        }
-    }
-
-    private function parserEncryptJSONItem($responseContent, $nodeName, $nodeIndex)
-    {
-        $signDataStartIndex = $nodeIndex + strlen($nodeName) + 2;
-        $signIndex = strpos($responseContent, "\"" . $this->SIGN_NODE_NAME . "\"");
-        // 签名前-逗号
-        $signDataEndIndex = $signIndex - 1;
-        if ($signDataEndIndex < 0) {
-            $signDataEndIndex = strlen($responseContent) - 1;
-        }
-        $indexLen = $signDataEndIndex - $signDataStartIndex;
-        $encContent = substr($responseContent, $signDataStartIndex + 1, $indexLen - 2);
-        $encryptParseItem = new EncryptParseItem();
-        $encryptParseItem->encryptContent = $encContent;
-        $encryptParseItem->startIndex = $signDataStartIndex;
-        $encryptParseItem->endIndex = $signDataEndIndex;
-        return $encryptParseItem;
-    }
-
-    // 获取加密内容
-
-    private function encryptXMLSignSource($request, $responseContent)
-    {
-        $parsetItem = $this->parserEncryptXMLSignSource($request, $responseContent);
-        $bodyIndexContent = substr($responseContent, 0, $parsetItem->startIndex);
-        $bodyEndContent = substr($responseContent, $parsetItem->endIndex, strlen($responseContent) + 1 - $parsetItem->endIndex);
-        $bizContent = decrypt($parsetItem->encryptContent, $this->encryptKey);
-        return $bodyIndexContent . $bizContent . $bodyEndContent;
-    }
-
-    private function parserEncryptXMLSignSource($request, $responseContent)
-    {
-        $apiName = $request->getApiMethodName();
-        $rootNodeName = str_replace(".", "_", $apiName) . $this->RESPONSE_SUFFIX;
-        $rootIndex = strpos($responseContent, $rootNodeName);
-        $errorIndex = strpos($responseContent, $this->ERROR_RESPONSE);
-        if ($rootIndex > 0) {
-            return $this->parserEncryptXMLItem($responseContent, $rootNodeName, $rootIndex);
-        } else if ($errorIndex > 0) {
-
-            return $this->parserEncryptXMLItem($responseContent, $this->ERROR_RESPONSE, $errorIndex);
-        } else {
-            return null;
-        }
-    }
-
-    private function parserEncryptXMLItem($responseContent, $nodeName, $nodeIndex)
-    {
-        $signDataStartIndex = $nodeIndex + strlen($nodeName) + 1;
-        $xmlStartNode = "<" . $this->ENCRYPT_XML_NODE_NAME . ">";
-        $xmlEndNode = "</" . $this->ENCRYPT_XML_NODE_NAME . ">";
-        $indexOfXmlNode = strpos($responseContent, $xmlEndNode);
-        if ($indexOfXmlNode < 0) {
-            $item = new EncryptParseItem();
-            $item->encryptContent = null;
-            $item->startIndex = 0;
-            $item->endIndex = 0;
-            return $item;
-        }
-        $startIndex = $signDataStartIndex + strlen($xmlStartNode);
-        $bizContentLen = $indexOfXmlNode - $startIndex;
-        $bizContent = substr($responseContent, $startIndex, $bizContentLen);
-        $encryptParseItem = new EncryptParseItem();
-        $encryptParseItem->encryptContent = $bizContent;
-        $encryptParseItem->startIndex = $signDataStartIndex;
-        $encryptParseItem->endIndex = $indexOfXmlNode + strlen($xmlEndNode);
-        return $encryptParseItem;
-    }
-
-    function echoDebug($content)
-    {
-        if ($this->debugInfo) {
-            echo "<br/>" . $content;
-        }
-
-    }
-
 }
diff --git a/src/Kernel/Exceptions/InvalidSignException.php b/src/Kernel/Exceptions/InvalidSignException.php
new file mode 100644
index 0000000..4857606
--- /dev/null
+++ b/src/Kernel/Exceptions/InvalidSignException.php
@@ -0,0 +1,14 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: wuliangbo
+ * Date: 2020/1/7
+ * Time: 09:49
+ */
+
+
+namespace EasyAlipay\Kernel\Exceptions;
+class InvalidSignException extends Exception
+{
+
+}
\ No newline at end of file
diff --git a/src/Kernel/SignData.php b/src/Kernel/SignData.php
deleted file mode 100755
index 4d41408..0000000
--- a/src/Kernel/SignData.php
+++ /dev/null
@@ -1,11 +0,0 @@
-<?php
-
-namespace EasyAlipay\Kernel;
-
-class SignData {
-
-    public $signSourceData=null;
-
-    public $sign=null;
-
-} 
\ No newline at end of file
diff --git a/src/Kernel/Support/Str.php b/src/Kernel/Support/Str.php
index e64cf1c..ec75dc2 100755
--- a/src/Kernel/Support/Str.php
+++ b/src/Kernel/Support/Str.php
@@ -48,12 +48,9 @@ class Str
 
     /**
      * Generate a more truly "random" alpha-numeric string.
-     *
      * @param int $length
-     *
      * @return string
-     *
-     * @throws \RuntimeException
+     * @throws RuntimeException
      */
     public static function random($length = 16)
     {
@@ -162,6 +159,7 @@ class Str
         return static::$snakeCache[$key] = trim($value, '_');
     }
 
+
     /**
      * Convert a value to studly caps case.
      *
@@ -181,4 +179,42 @@ class Str
 
         return static::$studlyCache[$key] = str_replace(' ', '', $value);
     }
+
+    /**
+     * Determine if a given string starts with a given substring.
+     *
+     * @param string       $haystack
+     * @param string|array $needles
+     *
+     * @return bool
+     */
+    public static function startsWith($haystack, $needles)
+    {
+        foreach ((array) $needles as $needle) {
+            if ('' !== $needle && substr($haystack, 0, strlen($needle)) === (string) $needle) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Determine if a given string ends with a given substring.
+     *
+     * @param string       $haystack
+     * @param string|array $needles
+     *
+     * @return bool
+     */
+    public static function endsWith($haystack, $needles)
+    {
+        foreach ((array) $needles as $needle) {
+            if (substr($haystack, -strlen($needle)) === (string) $needle) {
+                return true;
+            }
+        }
+
+        return false;
+    }
 }
diff --git a/src/Kernel/Traits/SingData.php b/src/Kernel/Traits/SingData.php
new file mode 100644
index 0000000..b023b18
--- /dev/null
+++ b/src/Kernel/Traits/SingData.php
@@ -0,0 +1,148 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: wuliangbo
+ * Date: 2020/1/7
+ * Time: 10:15
+ */
+
+namespace EasyAlipay\Kernel\Traits;
+
+use EasyAlipay\Kernel\Exceptions\InvalidConfigException;
+use EasyAlipay\Kernel\Support\Str;
+
+trait SingData
+{
+    public $postCharset = 'UTF-8';
+    public $fileCharset = 'UTF-8';
+
+    /**
+     * 签名
+     * @param $data
+     * @param $privateKey
+     * @param string $signType
+     * @return string
+     * @throws InvalidConfigException
+     */
+    protected function sign($data, $privateKey, $signType = "RSA")
+    {
+        if (is_null($privateKey)) {
+            throw new InvalidConfigException('Missing Alipay Config -- [private_key]');
+        }
+        if (Str::endsWith($privateKey, '.pem')) {
+            $privateKey = openssl_pkey_get_private(
+                Str::startsWith($privateKey, 'file://') ? $privateKey : 'file://' . $privateKey
+            );
+        } else {
+            $privateKey = "-----BEGIN RSA PRIVATE KEY-----\n" .
+                wordwrap($privateKey, 64, "\n", true) .
+                "\n-----END RSA PRIVATE KEY-----";
+        }
+
+        if ("RSA2" == $signType) {
+            openssl_sign($data, $sign, $privateKey, OPENSSL_ALGO_SHA256);
+        } else {
+            openssl_sign($data, $sign, $privateKey);
+        }
+        if (is_resource($privateKey)) {
+            openssl_free_key($privateKey);
+        }
+        $sign = base64_encode($sign);
+        return $sign;
+    }
+
+    /**
+     * @param $data
+     * @param $sign
+     * @param $publicKey
+     * @param string $signType
+     * @return bool
+     * @throws InvalidConfigException
+     */
+    public function verify($data, $sign, $publicKey, $signType = 'RSA')
+    {
+        if (is_null($publicKey)) {
+            throw new InvalidConfigException('Missing Alipay Config -- [ali_public_key]');
+        }
+        if (Str::endsWith($publicKey, '.pem')) {
+            $publicKey = openssl_pkey_get_public(
+                Str::startsWith($publicKey, 'file://') ? $publicKey : 'file://' . $publicKey
+            );
+        } else {
+            $publicKey = "-----BEGIN PUBLIC KEY-----\n" .
+                wordwrap($publicKey, 64, "\n", true) .
+                "\n-----END PUBLIC KEY-----";
+        }
+        $data = json_encode($data, JSON_UNESCAPED_UNICODE);
+        if ("RSA2" == $signType) {
+            $result = (openssl_verify($data, base64_decode($sign), $publicKey, OPENSSL_ALGO_SHA256) === 1);
+        } else {
+            $result = (openssl_verify($data, base64_decode($sign), $publicKey) === 1);
+        }
+        if (is_resource($publicKey)) {
+            //释放资源
+            openssl_free_key($publicKey);
+        }
+        return $result;
+    }
+
+    /**
+     * 获取签名文本
+     * @param $params
+     * @return string
+     */
+    public function getSignContent($params)
+    {
+        ksort($params);
+        $stringToBeSigned = "";
+        $i = 0;
+        foreach ($params as $k => $v) {
+            if (false === $this->checkEmpty($v) && "@" != substr($v, 0, 1)) {
+                // 转换成目标字符集
+                $v = $this->characet($v, $this->postCharset);
+
+                if ($i == 0) {
+                    $stringToBeSigned .= "$k" . "=" . "$v";
+                } else {
+                    $stringToBeSigned .= "&" . "$k" . "=" . "$v";
+                }
+                $i++;
+            }
+        }
+        unset ($k, $v);
+        return $stringToBeSigned;
+    }
+
+    /**
+     * 转换字符集编码
+     * @param $data
+     * @param $targetCharset
+     * @return string
+     */
+    function characet($data, $targetCharset)
+    {
+        if (!empty($data)) {
+            $fileType = $this->fileCharset;
+            if (strcasecmp($fileType, $targetCharset) != 0) {
+                $data = mb_convert_encoding($data, $targetCharset, $fileType);
+            }
+        }
+        return $data;
+    }
+
+    /**
+     * 校验$value是否非空
+     *  if not set ,return true;
+     *    if is null , return true;
+     **/
+    protected function checkEmpty($value)
+    {
+        if (!isset($value))
+            return true;
+        if ($value === null)
+            return true;
+        if (trim($value) === "")
+            return true;
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/src/Marketing/Pass/Client.php b/src/Marketing/Pass/Client.php
index acda3a5..b86e34d 100755
--- a/src/Marketing/Pass/Client.php
+++ b/src/Marketing/Pass/Client.php
@@ -13,6 +13,16 @@ use EasyAlipay\Marketing\Model\AlipayPassInstanceUpdateContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $unique_id
+     * @param string $tpl_content
+     * @return Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function createTemplate(string $unique_id,string $tpl_content)
     {
         //构造查询业务请求参数对象
@@ -25,6 +35,16 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $tpl_id
+     * @param string $tpl_content
+     * @return Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function updateTemplate(string $tpl_id,string $tpl_content)
     {
         //构造查询业务请求参数对象
@@ -37,6 +57,18 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $tpl_id
+     * @param string $tpl_params
+     * @param string $recognition_type
+     * @param string $recognition_info
+     * @return Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function addInstance(string $tpl_id,string $tpl_params,string $recognition_type,string $recognition_info)
     {
         //构造查询业务请求参数对象
@@ -51,6 +83,20 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $serial_number
+     * @param string $channel_id
+     * @param string $tpl_params
+     * @param string $status
+     * @param string $verify_code
+     * @param string $verify_type
+     * @return Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function updateInstance(string $serial_number,string $channel_id,string $tpl_params,string $status,string $verify_code,string $verify_type)
     {
         //构造查询业务请求参数对象
diff --git a/src/Mini/Identification/Client.php b/src/Mini/Identification/Client.php
index 5de6024..54eaf63 100755
--- a/src/Mini/Identification/Client.php
+++ b/src/Mini/Identification/Client.php
@@ -9,7 +9,16 @@ use EasyAlipay\Mini\Model\ZolozIdentificationUserWebQueryContentBuilder;
 
 class Client extends AopClient
 {
-
+    /**
+     * @param string $biz_id
+     * @param string $zim_id
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function queryCertifyzhub(string $biz_id,string $zim_id)
     {
         //构造查询业务请求参数对象
@@ -23,6 +32,17 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $biz_id
+     * @param string $zim_id
+     * @param string $extern_param
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function queryUserWeb(string $biz_id,string $zim_id,string $extern_param)
     {
         //构造查询业务请求参数对象
diff --git a/src/Mini/Qrcode/Client.php b/src/Mini/Qrcode/Client.php
index 3f909e8..fafecec 100755
--- a/src/Mini/Qrcode/Client.php
+++ b/src/Mini/Qrcode/Client.php
@@ -8,7 +8,17 @@ use EasyAlipay\Mini\Model\AlipayOpenAppQrcodeCreateContentBuilder;
 
 class Client extends AopClient
 {
-
+    /**
+     * @param string $url_param
+     * @param string $query_param
+     * @param string $describe
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function create(string $url_param,string $query_param,string $describe)
     {
         //构造查询业务请求参数对象
diff --git a/src/Mini/Risk/Client.php b/src/Mini/Risk/Client.php
index 8675bec..e30e12d 100755
--- a/src/Mini/Risk/Client.php
+++ b/src/Mini/Risk/Client.php
@@ -8,7 +8,15 @@ use EasyAlipay\Mini\Model\AlipaySecurityRiskContentDetectContentBuilder;
 
 class Client extends AopClient
 {
-
+    /**
+     * @param string $content
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function detectContent(string $content)
     {
         //构造查询业务请求参数对象
diff --git a/src/Mini/TemplateMessage/Client.php b/src/Mini/TemplateMessage/Client.php
index a81bdf0..d1815c6 100755
--- a/src/Mini/TemplateMessage/Client.php
+++ b/src/Mini/TemplateMessage/Client.php
@@ -8,6 +8,19 @@ use EasyAlipay\Mini\Model\AlipayOpenAppMiniTemplatemessageSendContentBuilder;
 
 class Client  extends AopClient
 {
+    /**
+     * @param string $to_user_id
+     * @param string $form_id
+     * @param string $user_template_id
+     * @param string $page
+     * @param string $data
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function send(string $to_user_id,string $form_id,string $user_template_id,string $page,string $data)
     {
         //构造查询业务请求参数对象
diff --git a/src/OpenPublic/Message/Client.php b/src/OpenPublic/Message/Client.php
index 8e7367e..1221b59 100755
--- a/src/OpenPublic/Message/Client.php
+++ b/src/OpenPublic/Message/Client.php
@@ -12,6 +12,22 @@ use EasyAlipay\OpenPublic\Model\AlipayOpenPublicLifeMsgRecallContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $title
+     * @param string $cover
+     * @param string $content
+     * @param string $could_comment
+     * @param string $ctype
+     * @param string $benefit
+     * @param string $ext_tags
+     * @param string $login_ids
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function createImageTextContent(string $title,string $cover,string $content,string $could_comment,string $ctype,string $benefit,string $ext_tags,string $login_ids)
     {
         //构造查询业务请求参数对象
@@ -30,6 +46,23 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $content_id
+     * @param string $title
+     * @param string $cover
+     * @param string $content
+     * @param string $could_comment
+     * @param string $ctype
+     * @param string $benefit
+     * @param string $ext_tags
+     * @param string $login_ids
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function modifyImageTextContent(string $content_id,string $title,string $cover,string $content,string $could_comment,string $ctype,string $benefit,string $ext_tags,string $login_ids)
     {
         //构造查询业务请求参数对象
@@ -48,6 +81,15 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $text
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function sendText(string $text)
     {
         //构造查询业务请求参数对象
@@ -60,6 +102,15 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $articles
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function sendImageText(string $articles)
     {
         //构造查询业务请求参数对象
@@ -72,6 +123,15 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $message_ids
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function query(string $message_ids)
     {
         //构造查询业务请求参数对象
@@ -83,6 +143,15 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $message_id
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function recall(string $message_id)
     {
         //构造查询业务请求参数对象
diff --git a/src/OpenPublic/Template/Client.php b/src/OpenPublic/Template/Client.php
index d701d0a..7a5df53 100755
--- a/src/OpenPublic/Template/Client.php
+++ b/src/OpenPublic/Template/Client.php
@@ -10,6 +10,18 @@ use EasyAlipay\OpenPublic\Model\AlipayOpenPublicTemplateMessageIndustryModifyCon
 class Client extends AopClient
 {
 
+    /**
+     * @param string $primary_industry_name
+     * @param string $primary_industry_code
+     * @param string $secondary_industry_code
+     * @param string $secondary_industry_name
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function setIndustry(string $primary_industry_name,string $primary_industry_code,string $secondary_industry_code,string $secondary_industry_name)
     {
         //构造查询业务请求参数对象
@@ -24,6 +36,14 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function getIndustry()
     {
         //构造查询业务请求参数对象
@@ -32,6 +52,15 @@ class Client extends AopClient
         return($this->execute($request, NULL, NULL)) ;
     }
 
+    /**
+     * @param string $template_id
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function getTemplate(string $template_id)
     {
         //构造查询业务请求参数对象
diff --git a/src/Payment/Application.php b/src/Payment/Application.php
index 1766d1c..2541526 100755
--- a/src/Payment/Application.php
+++ b/src/Payment/Application.php
@@ -2,6 +2,7 @@
 
 namespace EasyAlipay\Payment;
 
+use Closure;
 use EasyAlipay\Kernel\ServiceContainer;
 
 /**
@@ -28,4 +29,14 @@ class Application extends ServiceContainer
         Query\ServiceProvider::class,
         Refund\ServiceProvider::class,
     ];
+
+    /**
+     * @param Closure $closure
+     * @return \Symfony\Component\HttpFoundation\Response
+     * @throws \EasyAlipay\Kernel\Exceptions\Exception
+     */
+    public function handlePaidNotify(Closure $closure)
+    {
+        return (new Notify\Paid($this))->handle($closure);
+    }
 }
diff --git a/src/Payment/Cancel/Client.php b/src/Payment/Cancel/Client.php
index 8775d13..ff5b44b 100755
--- a/src/Payment/Cancel/Client.php
+++ b/src/Payment/Cancel/Client.php
@@ -8,6 +8,15 @@ use EasyAlipay\Payment\Model\AlipayTradeCancelContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $out_trade_no
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function cancel(string $out_trade_no)
     {
         //构造查询业务请求参数对象
diff --git a/src/Payment/Close/Client.php b/src/Payment/Close/Client.php
index bc62695..85c9b0b 100755
--- a/src/Payment/Close/Client.php
+++ b/src/Payment/Close/Client.php
@@ -8,6 +8,15 @@ use EasyAlipay\Payment\Model\AlipayTradeCloseContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $out_trade_no
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function close(string $out_trade_no)
     {
         //构造查询业务请求参数对象
diff --git a/src/Payment/Create/Client.php b/src/Payment/Create/Client.php
index 05c324d..c56a1d1 100755
--- a/src/Payment/Create/Client.php
+++ b/src/Payment/Create/Client.php
@@ -8,6 +8,18 @@ use EasyAlipay\Payment\Model\AlipayTradeCreateContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $subject
+     * @param string $out_trade_no
+     * @param string $total_amount
+     * @param string $buyer_id
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function create(string $subject,string $out_trade_no,string $total_amount,string $buyer_id)
     {
         //构造查询业务请求参数对象
diff --git a/src/Payment/Notify/Handler.php b/src/Payment/Notify/Handler.php
new file mode 100644
index 0000000..ac02783
--- /dev/null
+++ b/src/Payment/Notify/Handler.php
@@ -0,0 +1,167 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace EasyAlipay\Payment\Notify;
+
+use Closure;
+use EasyAlipay\Kernel\Exceptions\Exception;
+use EasyAlipay\Kernel\Exceptions\InvalidSignException;
+use EasyAlipay\Kernel\Traits\SingData;
+use Symfony\Component\HttpFoundation\Response;
+
+abstract class Handler
+{
+    use SingData;
+
+    const SUCCESS = 'success';
+    const FAIL = 'fail';
+
+    /**
+     * @var \EasyAlipay\Payment\Application
+     */
+    protected $app;
+
+    /**
+     * @var array
+     */
+    protected $message;
+
+    /**
+     * @var string|null
+     */
+    protected $fail;
+
+    /**
+     * @var array
+     */
+    protected $attributes = [];
+
+    /**
+     * Check sign.
+     * If failed, throws an exception.
+     *
+     * @var bool
+     */
+    protected $check = true;
+
+    /**
+     * Respond with sign.
+     *
+     * @var bool
+     */
+    protected $sign = false;
+
+    /**
+     * @param \EasyAlipay\Payment\Application $app
+     */
+    public function __construct($app)
+    {
+        $this->app = $app;
+    }
+
+    /**
+     * Handle incoming notify.
+     *
+     * @param \Closure $closure
+     *
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    abstract public function handle(Closure $closure);
+
+    /**
+     * @param string $message
+     */
+    public function fail(string $message)
+    {
+        $this->fail = $message;
+    }
+
+    /**
+     * @param array $attributes
+     * @param bool $sign
+     *
+     * @return $this
+     */
+    public function respondWith(array $attributes, bool $sign = false)
+    {
+        $this->attributes = $attributes;
+        $this->sign = $sign;
+
+        return $this;
+    }
+
+    /**
+     * return the response to ali.
+     *
+     * @return Response
+     */
+    public function toResponse(): Response
+    {
+        return new Response($this->fail);
+    }
+
+    /**
+     * Return the notify message from request.
+     *
+     * @return array
+     *
+     * @throws \EasyAlipay\Kernel\Exceptions\Exception
+     */
+    public function getMessage(): array
+    {
+        if (!empty($this->message)) {
+            return $this->message;
+        }
+
+        try {
+            $message = json_decode(strval($this->app['request']->getContent()), true);
+        } catch (\Throwable $e) {
+            throw new Exception('Invalid request: ' . $e->getMessage(), 400);
+        }
+
+        if (!is_array($message) || empty($message)) {
+            throw new Exception('Invalid request.', 400);
+        }
+
+        if ($this->check) {
+            $this->validate($message);
+        }
+
+        return $this->message = $message;
+    }
+
+    /**
+     * Validate the request params.
+     * @param array $message
+     * @throws InvalidSignException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     */
+    protected function validate(array $message)
+    {
+        $sign = $message['sign'];
+        $sign_type = $message['sign_type'];
+        unset($message['sign'], $message['sign_type']);
+
+        if ($this->verify($message, $sign, $this->app['config']->get('alipay_public_key'), $sign_type)) {
+            throw new InvalidSignException();
+        }
+    }
+
+    /**
+     * @param mixed $result
+     */
+    protected function strict($result)
+    {
+        if (true !== $result && is_null($this->fail)) {
+            $this->fail(strval($result));
+        }
+    }
+}
diff --git a/src/Payment/Notify/Paid.php b/src/Payment/Notify/Paid.php
new file mode 100644
index 0000000..20b3a8d
--- /dev/null
+++ b/src/Payment/Notify/Paid.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the overtrue/wechat.
+ *
+ * (c) overtrue <i@overtrue.me>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace EasyAlipay\Payment\Notify;
+
+use Closure;
+
+class Paid extends Handler
+{
+    /**
+     * @param \Closure $closure
+     *
+     * @return \Symfony\Component\HttpFoundation\Response
+     *
+     * @throws \EasyAlipay\Kernel\Exceptions\Exception
+     */
+    public function handle(Closure $closure)
+    {
+        $this->strict(
+            \call_user_func($closure, $this->getMessage(), [$this, 'fail'])
+        );
+
+        return $this->toResponse();
+    }
+}
diff --git a/src/Payment/Pay/Client.php b/src/Payment/Pay/Client.php
index fcb6ff8..4959ebc 100755
--- a/src/Payment/Pay/Client.php
+++ b/src/Payment/Pay/Client.php
@@ -8,6 +8,18 @@ use EasyAlipay\Payment\Model\AlipayTradePayContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $subject
+     * @param string $out_trade_no
+     * @param string $total_amount
+     * @param string $auth_code
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function pay(string $subject,string $out_trade_no,string $total_amount,string $auth_code)
     {
         //构造查询业务请求参数对象
diff --git a/src/Payment/Query/Client.php b/src/Payment/Query/Client.php
index eec368d..9461b4e 100755
--- a/src/Payment/Query/Client.php
+++ b/src/Payment/Query/Client.php
@@ -8,6 +8,15 @@ use EasyAlipay\Payment\Model\AlipayTradeQueryContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $out_trade_no
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function query(string $out_trade_no)
     {
         //构造查询业务请求参数对象
diff --git a/src/Payment/Refund/Client.php b/src/Payment/Refund/Client.php
index 1916931..d258a61 100755
--- a/src/Payment/Refund/Client.php
+++ b/src/Payment/Refund/Client.php
@@ -8,6 +8,16 @@ use EasyAlipay\Payment\Model\AlipayTradeRefundContentBuilder;
 
 class Client extends AopClient
 {
+    /**
+     * @param string $out_trade_no
+     * @param string $refund_amount
+     * @return \EasyAlipay\Kernel\Support\Collection
+     * @throws \EasyAlipay\Kernel\Exceptions\BadRequestException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidArgumentException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidConfigException
+     * @throws \EasyAlipay\Kernel\Exceptions\InvalidSignException
+     * @throws \GuzzleHttp\Exception\GuzzleException
+     */
     public function refund(string $out_trade_no,string $refund_amount)
     {
         //构造查询业务请求参数对象
diff --git a/tests/test.php b/tests/test.php
index 0971383..2ef1a9c 100755
--- a/tests/test.php
+++ b/tests/test.php
@@ -3,12 +3,14 @@ require __DIR__.'/../vendor/autoload.php';
 use EasyAlipay\Factory;
 
 $options = [
-    'app_id'                   => '2016051900098985',
+    'app_id'                   => '2018070360570197',
     'gateway_url'              => "https://openapi.alipaydev.com/gateway.do",//示例中使用的是沙箱环境网关，线上gateway_url：https://openapi.alipay.com/gateway.do
-    'sign_type'                => "RSA",
+    'sign_type'                => "RSA2",
     'charset'                  => "UTF-8",
-    'alipay_public_key'        => 'MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDIgHnOn7LLILlKETd6BFRJ0GqgS2Y3mn1wMQmyh9zEyWlz5p1zrahRahbXAfCfSqshSNfqOmAQzSHRVjCqjsAw1jyqrXaPdKBmr90DIpIxmIyKXv4GGAkPyJ/6FTFY99uhpiq0qadD/uSzQsefWo0aTvP/65zi3eof7TcZ32oWpwIDAQAB',
-    'merchant_private_key'     => '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',
+    'encrypt_key'              =>'oZXL/lMFlvG818o1jbgM2w==',
+    'response_type'            => 'collection',
+    'alipay_public_key'        => 'MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsDos+q5ZZa2JWtNLNluV8R6WqJSPUcJ39HpflCb8AEpSLTcjxsWG0RG3nvv7xBAHEOSRET8dTKPoWZXy1TAstv7WY4epiWZwogRzpNEPRbKyEBmbzkiOENW/27IdD6GFQ6e+MPE/BOPqd+hjR5SFghrQNpwZECWuCDFpsJq9G7EtTBUB1av52o/wYqWU1eCeUq+3MrtAD7p0Sh2V/B9jdmkpZhwGI/yHL23MHJI5J2aCNCfEQF520IHwHELrIq7xRv2hVE53APB/dueTTsIKNIWnbA8QbK3MUOgykG80UVxtZMl14Y3eB7RyzY70I5NimszSTSG6OQ2P78PMZjd77wIDAQAB',
+    'merchant_private_key'     => 'MIIEogIBAAKCAQEAi6lTghhlFBWvrp3hjxzdr4+tUaeDbAilxjOsyCWCfmDdqP7vypN1ZFphJwRx41639/VEpMxe7yMoUwVJPR7VpmWCm1V/sfExU+9pBAtVrGRUZLwS+dkB9vlEH9dYRjeMOmw4hXvf9X9JlQEpH4HkHpE5BjVk1OexY9zwzfoa0lV8uDId/vxYoRpSU9Hm8CdgZMySizrEicD+5isBiad8uKIZ3fPRb9v60L7xL1LuaCjyY2t8BehscI4cND1D5BQZyqkXY19a4qD5zYjRRK26jOYxu5X/jIREK9SYjb5n3b6G8/NU1zMO5vQA8wkqjMLi1xj+Zla2Qlx3Qth5docPwQIDAQABAoIBAHhmJxm2Uh04fNW6QeOQbQSWhkIoeUG/SrpNfhylSZQNicnQzYQED2XODIcIa+4pj8txZBX2Ibliw7aejf7lACaMyEWFNap/VZkYgZ3874TIkYCuKmW90NXLGhGhIfaWmIsdFLTuj6oia5rK/1qsLa60X0ac7Sol+2Ut6WKIxGqiBcZvziGQJoN0uI7l0gHX+XFUpyss0nKJpEinjUAbyS5QGwT8mBTsJLyVAiD+dZV2ig1DRBo8McAE/XebCTg2e6PfckcIjNXAfanLFSBLRLwdE+6Obx5fJoSPlTwnMK/Ln+PeuGgDJSfMkEunT5g0IxTEnVdEBvVgGyJK1J2gkckCgYEAw75ye9uRoDzkleM4T5Bo5bbCQnG9GUYkLeLGz/K073f8Zd2lDgp5+ODtRH3ftAdDv/g3SdJOU34FhI6vGJRbi+wLEP4GQq78t8Ez3623CotskPVBDOtRMOKuGeybB1OQYFwOVkwnFVyV+6GG/uNuybIuIxyNuiOLb6W2C9fyEx8CgYEAtqdPnwPFKU8gH12DW4KbT9GHFsgRA510mnv3MXSK2v9NcI4LFNc/zI6HFsIICXOgXwiAMfWKzOeqIAWmPB3DESvSqG+l6CubQLSmp21LJKh3Y7JbX9gwKY2UP6p/Yev86Ga6m9xdUkrFAQNI5oJs56asHjavSIJJyDsCJ0IIYR8CgYB7snNYcAXT9Acj7UYdiY2wdNDH+mZcfWXJlYC70o2isvlOSkXO3LH9o+5slPr0Io8e1jXiMcOLoZzNCvn9l2tOvei0YUMFit1rJe2pEXcVc8w0wrfL+T0Cno0VFt9VPuqC6kmpIVClgC/Lp2TO2FyfmzjquVWa5nFsKZUkYN+6UwKBgGM/AfprOAQ8JD4mt6tPikiSlw5/4w7NzX/rf+N1acWZF2DjLY5Dbz0c7LYm8+r+0tMQcWez/Zlc/4mqyCq+GTIJV8uB7un6V7+O6UbsEfp3N3gKf6/SbkkFztnRMKnqal91AkySLnr6eZUVTdVCZR5x5+/60r9ZW/Habk8aiCcNAoGAGPCxjwznnHxe0C/325N8JfGuamOayyOOfGGZY5zay3m8MIbFdOKykd4aqHiSE15kmJDsmKoFedlOZYXKqm+bA+kii2AKokrnd1H+I2xnqZnZWMB64bHwPZQA9fIPpvyvHgXYY9bxp4oAMHPwrvbY2nRpplO3Jz7Oax2LFBBLBQY=',
     // ...
 ];
 
@@ -21,4 +23,5 @@ $options = [
 
 //接口测试用例
 $app = Factory::payment($options);
+
 var_dump($app['query']->query("1561946980099_demo_pay"));