interface

@@ -228,7 +228,8 @@ class OrderController extends HomeBaseController{
         $body='支付';
         $price=$order['price']*100;//订单价格
         $notify_url=url('order/notify','','',true);//回调地址
-        $wxPay=new WeixinPay($openId,$order_no,$body,$price,$notify_url);
+        $out_trade_no=$order_no.rand(1000,9999);
+        $wxPay=new WeixinPay($openId,$out_trade_no,$body,$price,$notify_url);
         $pay=$wxPay->pay();
         if (isset($pay['package'])){
             $data=[
@@ -261,7 +262,7 @@ class OrderController extends HomeBaseController{
         $Sign = $data['sign'];
         //支付成功回调后变更订单状态
         $mySign = $wxPay->getSign($data);
-        $order_no = $data['out_trade_no'];
+        $order_no =substr($data['out_trade_no'], 0, -4);
         if ($Sign===$mySign && $data['return_code'] == 'SUCCESS') {
             try{
                 Db::name('order')->where(['order_no'=>$order_no])->update(['state'=>3]);