修改

ThinkPHP/Library/Org/SumaPay/Api.class.php

@@ -26,9 +26,9 @@ class Api
     public static function h5Pay($orderNumber, $amount, $notifyUrl, $backUrl, $payType, $body, $clientIp) {
         $request = null;
         if ($payType == self::TYPE_WECHAT_S || $payType == self::TYPE_WECHAT_P) {
-            $request = new H5payRequest(Config::get('merchantCode'), Config::get('totalBizType'), Config::get('secretKey'));
-        } else {
             $request = new WxH5payRequest(Config::get('merchantCode'), Config::get('totalBizType'), Config::get('secretKey'));
+        } else {
+            $request = new H5payRequest(Config::get('merchantCode'), Config::get('totalBizType'), Config::get('secretKey'));
         }
         $request->setParams([
             'requestType' => $payType,
@@ -40,7 +40,7 @@ class Api
             'noticeUrl' => $notifyUrl,
             'passThrough' => '',
             'terminalIp' => $clientIp,
-            // 'backUrl' => $backUrl,
+            'backUrl' => $backUrl,
             'productId' => 'AMOUNT',
             'productName' => $body,
             'fund' => $amount,