.

app/api/controller/pay/WxpayController.php

@@ -31,7 +31,7 @@ class WxpayController
 
         Db::beginTransaction();
         try {
-            $payDetail->pay_prepayid = 'ALIPAY';
+            $payDetail->pay_prepayid = 'WXPAY';
             $payDetail->save();
 
             $alipay = Pay::wechat(config('payment.wxpay'))->app($payData)->getContent();
@@ -72,4 +72,4 @@ class WxpayController
 //            'mode' => 'dev', // optional, dev/hk;当为 `hk` 时，为中国香港 gateway。
         ];
     }
-}
+}