支付宝即时到帐付款/退款流程

随着互联网和移动互联网发展，越来越多的企业和个人开发者在自己的网站接入支付接口，但是网上从接口级详细介绍的很少，完整成功的案例代码几乎没有。

本文经过对米扑代理接入支付宝接口的实战，成功解决了付款/退款的基本逻辑，并且还解决了自动发货/退货等支付逻辑。注：本文整理来自米扑博客

先看成功接入支付宝接口付款/退款，自动发货/退货的网站实例：

米扑代理： http://proxy.mimvp.com/price.php

 

代码文件结构

create_direct_pay_by_user-php-UTF-8
  │
  ├lib┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈类文件夹
  │  │
  │  ├alipay_core.function.php ┈┈┈┈┈┈支付宝接口公用函数文件
  │  │
  │  ├alipay_notify.class.php┈┈┈┈┈┈┈支付宝通知处理类文件
  │  │
  │  ├alipay_submit.class.php┈┈┈┈┈┈┈支付宝各接口请求提交类文件
  │  │
  │  └alipay_md5.function.php┈┈┈┈┈┈┈支付宝接口MD5函数文件
  │
  ├log.txt┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈日志文件
  │
  ├alipay.config.php┈┈┈┈┈┈┈┈┈┈┈┈基础配置类文件
  │
  ├alipayapi.php┈┈┈┈┈┈┈┈┈┈┈┈┈┈支付宝接口入口文件
  │
  ├notify_url.php ┈┈┈┈┈┈┈┈┈┈┈┈┈服务器异步通知页面文件
  │
  ├return_url.php ┈┈┈┈┈┈┈┈┈┈┈┈┈页面跳转同步通知文件
  │
  ├cacert.pem ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈用于CURL中校验SSL的CA证书文件
  │
  └readme.txt ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈使用说明文本

 

支付宝交易状态自定义

// 支付宝【即时支付】交易状态 (user_order)
$ALIPAY_INSTANT_TRADE_STATUS_ARRAY = array (    "0" => "NO_PAY" ,
                                            "1" => "WAIT_BUYER_PAY" ,
                                            "4" => "TRADE_FINISHED" ,
                                            "5" => "TRADE_CLOSED" ,
                                            "7" => "TRADE_PENDING" ,
                                            "8" => "TRADE_SUCCESS" ,
                                            "WAIT_BUYER_PAY" => "1" ,
                                            "TRADE_FINISHED" => "4" ,
                                            "TRADE_CLOSED" => "5" ,
                                            "TRADE_PENDING" => "7" ,
                                            "TRADE_SUCCESS" => "8" ,
                                            "0_desc" => "买家未付款" ,
                                            "1_desc" => "等待买家付款" ,
                                            "4_desc" => "交易成功结束" ,
                                            "5_desc" => "交易中途关闭(已结束,未成功完成)" ,
                                            "7_desc" => "等待卖家收款" ,
                                            "8_desc" => "交易成功(可退款)" );


// 支付宝【即时支付】退款状态
$ALIPAY_INSTANT_REFUND_STATUS_ARRAY = array ( "0" => "NO_REFUND" ,
                                            "5" => "REFUND_SUCCESS" ,
                                            "6" => "REFUND_CLOSED" ,
                                            "REFUND_SUCCESS" => "5" ,
                                            "REFUND_CLOSED" => "6" ,
                                            "0_desc" => "未申请退款" ,
                                            "5_desc" => "退款成功" ,
                                            "6_desc" => "退款关闭" );

 

支付宝的付款/退款状态

//计算得出通知验证结果
$alipayNotify = new AlipayNotify( $alipay_config );
$verify_result = $alipayNotify ->verifyNotify();

if ( $verify_result ) { //验证成功
    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
    //请在这里加上商户的业务逻辑程序代

    //——请根据您的业务逻辑来编写程序（以下代码仅作参考）——
    //获取支付宝的通知返回参数，可参考技术文档中服务器异步通知参数列表
    $out_trade_no = $_POST [ 'out_trade_no' ];            // 商户订单号
    $trade_no = $_POST [ 'trade_no' ];                    // 支付宝交易号
    $trade_status = $_POST [ 'trade_status' ];            // 交易状态

    $trade_status_id = $ALIPAY_INSTANT_TRADE_STATUS_ARRAY [ $trade_status ];
    $paid_dtime = $_POST [ 'gmt_payment' ];        // 该笔交易的买家付款时间（POST notify通知时间）
//     $paid_dtime = $_POST['notify_time'];        // 该笔交易的买家付款时间（GET  return通知时间）


    @ $seller_email = $_POST [ 'seller_email' ];
    @ $seller_id = $_POST [ 'seller_id' ];
    @ $seller_actions = $_POST [ 'seller_actions' ];            // ========== 无 ==========
    @ $buyer_email = $_POST [ 'buyer_email' ];
    @ $buyer_id = $_POST [ 'buyer_id' ];
    @ $buyer_actions = $_POST [ 'buyer_actions' ];                // ========== 无 ==========


    @ $receive_name = $_POST [ 'receive_name' ];                // ========== 无 ==========
    @ $receive_address = $_POST [ 'receive_address' ];            // ========== 无 ==========
    @ $receive_zip = $_POST [ 'receive_zip' ];                    // ========== 无 ==========
    @ $receive_phone = $_POST [ 'receive_phone' ];                // ========== 无 ==========
    @ $receive_mobile = $_POST [ 'receive_mobile' ];            // ========== 无 ==========


    @ $notify_dtime = $_POST [ 'notify_time' ];
    @ $refund_status = $_POST [ 'refund_status' ];
    @ $refund_status_id = $ALIPAY_INSTANT_REFUND_STATUS_ARRAY [ $refund_status ];
    @ $refund_dtime = $_POST [ 'gmt_refund' ];    // 交易退款时间




    if ( $trade_status == 'WAIT_BUYER_PAY' ){
        // 等待买家付款

        $order_status = 0;    // 已下单，等待买家付款
        $sql = sprintf( "update user_order
                         set trade_no= '%s' , status=%d, trade_status=%d, refund_status=%d, refund_dtime= '%s' , notify_dtime= '%s' ,
                             seller_email= '%s' , seller_id= '%s' , seller_actions= '%s' , buyer_email= '%s' , buyer_id= '%s' , buyer_actions= '%s' ,
                         where is_send_goods = 0 and id = '%s' ; ",
                $trade_no , $order_status , $trade_status_id , $refund_status_id , $refund_dtime , $notify_dtime ,
                $seller_email , $seller_id , $seller_actions , $buyer_email , $buyer_id , $buyer_actions ,
                $out_trade_no );
        $result = sql_insert( 'mimvp_proxy' , $sql );
        if ( $result == 1 )
        {
            write_success_session( $out_trade_no );
            echo "success" ;        // 成功插入数据库，返回通知支付宝不要再发送异步通知
        }
    }
    else if ( $trade_status == 'TRADE_SUCCESS' && $refund_status == "" ) {
        // 买家已付款,等待卖家发货，自动填写发货信息

        $order_status = 8;
        $sql = sprintf( "update user_order
                                 set trade_no= '%s' , status=%d, trade_status=%d, refund_status=%d, refund_dtime= '%s' , notify_dtime= '%s' ,
                                     seller_email= '%s' , seller_id= '%s' , seller_actions= '%s' , buyer_email= '%s' , buyer_id= '%s' , buyer_actions= '%s' ,
                                     receive_name= '%s' , receive_address= '%s' , receive_zip= '%s' , receive_phone= '%s' , receive_mobile= '%s' , paid_dtime= '%s'
                                 where is_send_goods = 0 and id = '%s' ; ",
                $trade_no , $order_status , $trade_status_id , $refund_status_id , $refund_dtime , $notify_dtime ,
                $seller_email , $seller_id , $seller_actions , $buyer_email , $buyer_id , $buyer_actions ,
                $receive_name , $receive_address , $receive_zip , $receive_phone , $receive_mobile , $paid_dtime ,
                $out_trade_no );
        $result = sql_insert( 'mimvp_proxy' , $sql );
        if ( $result == 1 )
        {
            write_success_session( $out_trade_no );
            echo "success" ;        // 成功插入数据库，返回通知支付宝不要再发送异步通知
        }

        is_trade_success( $out_trade_no );
           echo $sHtml ;
    }
    else if ( $trade_status == 'TRADE_FINISHED' && $refund_status == "" ) {
    //判断该笔订单是否在商户网站中已经做过处理
        //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
        //如果有做过处理，不执行商户的业务程序

        $order_status = 4;
        $order_confirm_dtime = date ( 'Y-m-d H:i:s' );
        $order_finish_dtime = date ( 'Y-m-d H:i:s' );
        $sql = sprintf( "update user_order set status=%d, trade_status=%d, seller_actions='%s', buyer_actions='%s', confirm_dtime='%s', finish_dtime='%s', notify_dtime='%s', is_finish = 1 where is_send_goods = 1 and id = '%s'; " ,
                $order_status , $trade_status_id , $seller_actions , $buyer_actions , $order_confirm_dtime , $order_finish_dtime , $notify_dtime , $out_trade_no );
                    $result = sql_insert( 'mimvp_proxy' , $sql );
        if ( $result == 1 )
        {
            write_success_session( $out_trade_no );
            echo "success" ;        // 成功插入数据库，返回通知支付宝不要再发送异步通知
        }
    }
    else if ( $trade_status == 'TRADE_CLOSED' && $refund_status == "" ){
        // 交易中途关闭(已结束,未成功完成)

        $order_status = 32;
        $order_finish_dtime = date ( 'Y-m-d H:i:s' );
        $sql = sprintf( "update user_order set status=%d, trade_status=%d, seller_actions='%s', buyer_actions='%s', finish_dtime='%s', notify_dtime='%s', is_finish = 1 where is_send_goods = 1 and id = '%s'; " ,
                        $order_status , $trade_status_id , $seller_actions , $buyer_actions , $order_finish_dtime , $notify_dtime , $out_trade_no );
                            $result = sql_insert( 'mimvp_proxy' , $sql