//支付宝
 include_once VENDOR_PATH . 'Alipay/aop/AopClient.php';
 include_once VENDOR_PATH . 'Alipay/aop/request/AlipayTradeAppPayRequest.php';
 $notify_url='https://www.www.com/app/pay/AlipayStep3Notify';
 $config = array(
  'appid' =>$this->appid,//
  'rsaPrivateKey' =>$this->rsaPrivateKey,//开发者私钥私钥
  'alipayrsaPublicKey'=>$this->alipayrsaPublicKey,//支付宝公钥
  'charset'=>strtolower('utf-8'),//编码
  'notify_url' =>$notify_url,//回调地址(支付宝支付成功后回调修改订单状态的地址)
  'payment_type' =>1,//(固定值)
  'seller_id' =>'',//收款商家账号
  'charset' => 'utf-8',//编码
  'sign_type' => 'RSA2',//签名方式
  'timestamp' =>date("Y-m-d H:i:s"),
  'version' =>"1.0",//固定值
  'url' => 'https://openapi.alipay.com/gateway.do',//固定值
  'method' => 'alipay.trade.app.pay',//固定值
 );
  
   $aop = new \AopClient();
   $aop->gatewayUrl = "https://openapi.alipay.com/gateway.do";
   $aop->appId = $config['appid'];
   $aop->rsaPrivateKey = $config['rsaPrivateKey'];
   $aop->format = "json";
   $aop->charset = "UTF-8";
   $aop->signType = "RSA2";
   $aop->alipayrsaPublicKey=$config['alipayrsaPublicKey'];
  //实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.app.pay
   $request = new \AlipayTradeAppPayRequest();
  //SDK已经封装掉了公共参数，这里只需要传入业务参数
   
   $bizcontent = json_encode([
    'body'=>'**',
    'subject'=>$subject,
    'out_trade_no'=> $order_sn,//此订单号为商户唯一订单号
    'total_amount'=>$totalprice,//保留两位小数
    'product_code'=>'QUICK_MSECURITY_PAY'
   ]);
   $request->setNotifyUrl($config['notify_url']);
   $request->setBizContent($bizcontent);
  //这里和普通的接口调用不同，使用的是sdkExecute
   $response = $aop->sdkExecute($request);
  //htmlspecialchars是为了输出到页面时防止被浏览器将关键参数html转义，实际打印到日志以及http传输不会有这个问题
  $datas=$response;//就是orderString 可以直接给客户端请求，无需再做处理。
  $this->arr['code']=0;
  $this->arr['msg']=$order_sn;
  $this->arr['info']=$datas;
  echo json_encode($this->arr);exit;

include_once VENDOR_PATH . 'Alipay/aop/AopClient.php';
  $aop = new \AopClient();
  $config['alipayrsaPublicKey']=$this->$alipayrsaPublicKey;//公钥
  $aop->alipayrsaPublicKey = $config['alipayrsaPublicKey'];
  //此处验签方式必须与下单时的签名方式一致
  $flag = $aop->rsaCheckV1($_POST, NULL, "RSA2");
  //验签通过后再实现业务逻辑，比如修改订单表中的支付状态。
  /**
  ①验签通过后核实如下参数out_trade_no、total_amount、seller_id
  ②修改订单表
  **/
  $out_trade_no = I('post.out_trade_no'); //商户订单号

include_once VENDOR_PATH . 'Alipay/aop/SignData.php';
 include_once VENDOR_PATH . 'Alipay/aop/AopClient.php';
 include_once VENDOR_PATH . 'Alipay/aop/request/AlipayTradeQueryRequest.php';
 $config = array(
  'appid' =>$this->appid,//
  'rsaPrivateKey' =>$this->rsaPrivateKey,//开发者私钥私钥
  'alipayrsaPublicKey'=>$this->alipayrsaPublicKey,//支付宝公钥
  'charset'=>strtolower('utf-8'),//编码
  'notify_url' =>'',//回调地址(支付宝支付成功后回调修改订单状态的地址)
  'payment_type' =>1,//(固定值)
  'seller_id' =>'',//收款商家账号
  'charset' => 'utf-8',//编码
  'sign_type' => 'RSA',//签名方式
  'timestamp' =>date("Y-m-d H:i:s"),
  'version' =>"1.0",//固定值
  'url' => 'https://openapi.alipay.com/gateway.do',//固定值
  'method' => 'alipay.trade.query',//固定值
 );
  
   $aop = new \AopClient();
   $aop->gatewayUrl = "https://openapi.alipay.com/gateway.do";
   $aop->appId = $config['appid'];
   $aop->rsaPrivateKey = $config['rsaPrivateKey'];
   $aop->format = "json";
   $aop->charset = "UTF-8";
   $aop->signType = "RSA2";
   $aop->method = $config['method'];
   $aop->apiVersion = '1.0';
   $aop->alipayrsaPublicKey=$config['alipayrsaPublicKey'];
  //实例化具体API对应的request类,类名称和接口名称对应,当前调用接口名称：alipay.trade.query
   $request = new \AlipayTradeQueryRequest();
 
   $bizcontent = json_encode([
    'out_trade_no'=>$order_sn,
    'trade_no'=>''
   ]);
   
   $request->setBizContent($bizcontent);
  
   $response = $aop->execute($request);
 
   $responseNode = str_replace(".", "_", $request->getApiMethodName()) . "_response";
   $resultCode = $response->$responseNode->code;
   if(!empty($resultCode)$resultCode == 10000){
 
    $this->arr['code']=0;
    $this->arr['msg']='success';
    echo json_encode($this->arr);exit;
  
   } else {
    $this->arr['code']=100001;
    $this->arr['msg']='未查询到订单信息';
    echo json_encode($this->arr);exit;
   
 }