详解用vue.js和laravel实现微信支付

  /
    微信支付
   /
   'payment' => [
     'merchant_id'    => env('WECHAT_PAYMENT_MERCHANT_ID', 'your-mch-id'),//商家号ID，请将其放在.env文件中
     'key'        => env('WECHAT_PAYMENT_KEY', 'key-for-signature'),//商家支付key，请将其放在.env文件中
     'cert_path'     => env('WECHAT_PAYMENT_CERT_PATH', storage_path('app/public/apiclient_cert.pem')), //微信支付证书apiclient_cert.pem的绝对路径，我放在storage/app/public/下
     'key_path'      => env('WECHAT_PAYMENT_KEY_PATH', storage_path('app/public/apiclient_key.pem')),   //微信支付证书apiclient_key.pem的绝对路径，我放在storage/app/public/下径
     // 'device_info'   => env('WECHAT_PAYMENT_DEVICE_INFO', ''),
     // 'sub_app_id'   => env('WECHAT_PAYMENT_SUB_APP_ID', ''),
     // 'sub_merchant_id' => env('WECHAT_PAYMENT_SUB_MERCHANT_ID', ''),
     // ...
   ],

//以下路由我放在api.php路由里，如果你放在web.php路由，请自行调整！
Route::middleware('api')->post('wxpay','BillsController@wxpay');
Route::middleware('api')->post('wx_notify','BillsController@wxnotify');

 /
   这是我自己项目的内部代码示例，具体根据自己的业务逻辑调整，切不可直接拷贝！
  /
  public function wxpay(Request $request)
  {
    //本实例传递的参数为user_id 和 broadcast_id，具体
    if($request->has('user_id') && $request->has('broadcast_id')){
      $out_trade_no = md5(Carbon::now().str_random(8));
      $user_id = $request->get('user_id');
      $broadcast_id = $request->get('broadcast_id');
      $num = $request->get('num');
      $flag = $request->get('flag');

      $openid = $this->user->getOpenid($user_id);
      $broadcast = $this->broadcast->getById($broadcast_id);
      $speaker_id = $broadcast->speaker_id;
      $body = $broadcast->title;
      $detail = '';
      $paid_at = null;

      $status = 'pre_paid';
      $amount = ($broadcast->price)$num;

      $attributes = [
        'trade_type'    => 'JSAPI', // JSAPI，NATIVE，APP...
        'body'       => $body, 
        'detail'      => $detail,
        'out_trade_no'   => $out_trade_no,
        'total_fee'    => $amount, // 单位分
        'notify_url'    => $_ENV['APP_URL'].'/api/wx_notify', // 支付结果通知网址，如果不设置则会使用配置里的默认地址
        'openid'      => $openid, // trade_type=JSAPI，此参数必传，用户在商户appid下的唯一标识，
        // ...
      ];

      $order = new Order($attributes);
      $result = $this->wechat->payment->prepare($order);
      if ($result->return_code == 'SUCCESS' && $result->result_code == 'SUCCESS'){
        //创建预订单
        $param = [
          'out_trade_no'=>$out_trade_no,
          'user_id'=>$user_id,
          'broadcast_id'=>$broadcast_id,
          'speaker_id'=>$speaker_id,
          'body'=>$body,
          'detail'=>$detail,
          'paid_at'=>$paid_at,
          'amount'=>$amount,
          'flag'=>$flag,
          'status'=>$status,
          'num'=>$num
        ];
        $this->bill->store($param);
        //返回
        $prepayId = $result->prepay_id;
        $config = $this->wechat->payment->configForPayment($prepayId,false);

        return response()->json($config);
      }
    }

  }

   /
    这是我自己项目的内部代码示例，具体根据自己的业务逻辑调整，切不可直接拷贝！
   /
  public function wxnotify()
  {
    $response = $this->wechat->payment->handleNotify(function($notify, $suessful){
      $order = $this->bill->getBillByOrderno($notify->out_trade_no);//查询订单($notify->out_trade_no);
      if (!$order) { // 如果订单不存在
        return 'Order not exist.'; // 告诉微信，我已经处理完了，订单没找到，别再通知我了
      }
      // 如果订单存在
      // 检查订单是否已经更新过支付状态
      if ($order->paid_at) { // 假设订单字段“支付时间”不为空代表已经支付
        return true; // 已经支付成功了就不再更新了
      }
      // 用户是否支付成功
      if ($suessful) {
        // 不是已经支付状态则修改为已经支付状态
        $order->paid_at = Carbon::now(); // 更新支付时间为当前时间
        $order->status = 'paid';
      } else { // 用户支付失败
        $order->status = 'paid_fail';
      }
      $order->save(); // 保存订单
      return true; // 返回处理完成
    });
    return $response; 
  }

   wechatpay(){
    var param = {
     'user_id':this.getStorage(),
     'broadcast_id':this.id,
     'num':1,
     'flag':'buy',
    }
    this.$http.post(this.GLOBAL.apiUrl+'/wxpay',param).then((response) => {
     WeixinJSBridge.invoke(
      'getBrandWCPayRequest', response.data,
      function(res){
       if(res.err_msg == "get_brand_wcpay_request:ok" ) {
        # 回调成功后跳转
        # router.push({name: 'Room',params:{id:this.id}});
       }
      }
     );
    })
   },