支付宝的当面付扫一扫功能

首先需要一个沙箱环境,专门为开发者提供的。里面给你提供了卖家账号,和买家账号。具体的自行百度。
需要下载沙箱版的支付宝,然后登陆提供的买卖家账号即可操作。因为在沙箱环境中支付宝给出的二维码只能在沙箱版的支付宝中扫。
沙箱买卖家:
https://openhome.alipay.com/platform/appDaily.htm?tab=account
沙箱需要的配置文件信息:
https://openhome.alipay.com/platform/appDaily.htm?tab=info
当面付demo
https://docs.open.alipay.com/54/104506/
需要一个sra2秘钥生成器,支付宝有提供下载:
https://openclub.alipay.com/read.php?tid=955&fid=46
支付宝当面付开发者文档
https://docs.open.alipay.com/194

场景:用户下单,然后我们后台会去掉支付宝的接口,当然支付宝接口需要一些参数,比如说,标题了,订单号,总金额,物品明细,等等之类的,这些支付宝官方的demo中都有,直接拿过来改造就行。我们主要的是掉支付宝的接口让他给我们返回一个json串,里面有个网址,生成二维码的。然后我们再用这个一个工具包将这个二维码生成二维码,保存到我们的图片服务器上。然后,我们用刚刚下载好的沙箱支付宝扫码支付。然后,支付成功,支付宝会会回调我们之前设置的本地的回调函数(内网映射)。参数中有支付宝返回的结果,比如订单号,支付状态,支付时间等等,但是这些都时支付宝给我们的一些结果,在这之前,我们必须要验证一下这个回调函数是不是支付宝发起的,支付包的demo里有提供这个方法,返回的是布尔值。然后是true的时候,进行我们下一步的操作,就是验证返回的结果的参数正确性和更该数据库里面的状态。最后如果支付成功,给支付宝返回success,不然,支付宝会隔一段时间还回调,具体看文档。大致流程就是这样的。不会的给我留言。。。。

controller

package com.mmall.controller.protal;

import com.alipay.api.AlipayApiException;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.demo.trade.config.Configs;
import com.google.common.collect.Maps;
import com.mmall.common.Const;
import com.mmall.common.ServerResponse;
import com.mmall.dao.OrderMapper;
import com.mmall.pojo.Order;
import com.mmall.pojo.User;
import com.mmall.service.IOrderService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

/**
 * Created by 敲代码的卡卡罗特
 * on 2018/3/18 14:08.
 */
@RequestMapping("/order/")
@Controller
@Slf4j
public class OrderController {
    @Autowired
    IOrderService iOrderService;
    @RequestMapping("pay.do")
    @ResponseBody
    public ServerResponse pay(HttpSession httpSession, Long orderNo, HttpServletRequest request){
        User user = (User)httpSession.getAttribute(Const.CURRENT_USER);
        if (user==null){
            return ServerResponse.createByError("请登录账号");
        }
        System.out.println("request.getContextPath():----"+request.getContextPath());
        System.out.println("request.getSession().getServletContext()-----"+request.getSession().getServletContext().getRealPath("upload"));
        String upload = request.getSession().getServletContext().getRealPath("upload");
        return  iOrderService.pay(orderNo,user.getId(),upload);
    }
    @RequestMapping("alipay_callback.do")
    @ResponseBody
    public Object alipayCallback(HttpServletRequest httpServlet){
        HashMap<String, String> map = Maps.newHashMap();
        Map<String, String[]> parameterMap = httpServlet.getParameterMap();
        Set<String> set = parameterMap.keySet();
        for (String s: set){
            String[] strings = parameterMap.get(s);
            String str="";
            for (int i=0;i<strings.length;i++){
                str=i==strings.length-1?str+strings[i]:str+strings[i]+",";
            }
            map.put(s,str);
        }
        log.info("支付宝回调:sign:{},trade_status:{},参数:{}",map.get("sign"),map.get("trade_status"),map.toString());

        //验签是不是支付宝发起的回调
        map.remove("sign_type");
        try {
            Configs.init("zfbinfo.properties");
            boolean bool = AlipaySignature.rsaCheckV2(map, Configs.getAlipayPublicKey(), "utf-8", Configs.getSignType());
            if (!bool){
                return ServerResponse.createByError("非法请求,再请求老子就报警了");
            }

        } catch (AlipayApiException e) {
            log.error("支付宝验证回调异常",e);
        }
        ServerResponse alipaycall = iOrderService.alipaycall(map);
        if (alipaycall.isSuccess()){
            return Const.AlipayCallback.RESPONSE_SUCCESS;
        }
        return Const.AlipayCallback.RESPONSE_FAILED;
    }


    @RequestMapping("queryOrderPayStatus.do")
    @ResponseBody
    public ServerResponse queryOrderPayStatus(HttpSession httpSession, Long orderNo){
        User user = (User)httpSession.getAttribute(Const.CURRENT_USER);
        if (user==null){
            return ServerResponse.createByError("请登录账号");
        }
        ServerResponse serverResponse = iOrderService.queryOrderPayStatus(user.getId(), orderNo);
        if (serverResponse.isSuccess()){
            return ServerResponse.createBySuccess(true);
        }
        return  ServerResponse.createBySuccess(false);
    }
}

service

package com.mmall.service.impl;

import com.alipay.api.AlipayResponse;
import com.alipay.api.response.AlipayTradePrecreateResponse;
import com.alipay.demo.trade.config.Configs;
import com.alipay.demo.trade.model.ExtendParams;
import com.alipay.demo.trade.model.GoodsDetail;
import com.alipay.demo.trade.model.builder.AlipayTradePrecreateRequestBuilder;
import com.alipay.demo.trade.model.result.AlipayF2FPrecreateResult;
import com.alipay.demo.trade.service.AlipayTradeService;
import com.alipay.demo.trade.service.impl.AlipayTradeServiceImpl;
import com.alipay.demo.trade.utils.ZxingUtils;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.mmall.common.Const;
import com.mmall.common.ServerResponse;
import com.mmall.dao.OrderItemMapper;
import com.mmall.dao.OrderMapper;
import com.mmall.dao.PayInfoMapper;
import com.mmall.pojo.Order;
import com.mmall.pojo.OrderItem;
import com.mmall.pojo.PayInfo;
import com.mmall.service.IOrderService;
import com.mmall.untis.BigDecimalUtil;
import com.mmall.untis.DateUtils;
import com.mmall.untis.FTPUtil;
import com.mmall.untis.PropertiesUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by 敲代码的卡卡罗特
 * on 2018/3/18 14:17.
 */
@Service
@Slf4j
public class OrderServiceImpl implements IOrderService {
    @Autowired
    OrderMapper orderMapper;
    @Autowired
    OrderItemMapper orderItemMapper;

    @Autowired
    PayInfoMapper payInfoMapper;
    // 支付宝当面付2.0服务
    private static AlipayTradeService tradeService;
    public ServerResponse pay(Long orderNo,Integer userId,String path){
        HashMap map = Maps.newHashMap();
        if (orderNo==null){
            return  ServerResponse.createByError("参数错误");
        }
        Order order = orderMapper.selectByUserIdAndOrderNo(userId, orderNo);
        if (order==null){
            return  ServerResponse.createByError("没有查到该订单");
        }
        map.put("orderNo",order.getOrderNo());
        // (必填) 商户网站订单系统中唯一订单号,64个字符以内,只能包含字母、数字、下划线,
        // 需保证商户系统端不能重复,建议通过数据库sequence生成,
        String outTradeNo = order.getOrderNo().toString();

        // (必填) 订单标题,粗略描述用户的支付目的。如“xxx品牌xxx门店当面付扫码消费”
        String subject = new StringBuilder().append("快乐慕商城订单:").append(outTradeNo).append("生成订单成功").toString();

        // (必填) 订单总金额,单位为元,不能超过1亿元
        // 如果同时传入了【打折金额】,【不可打折金额】,【订单总金额】三者,则必须满足如下条件:【订单总金额】=【打折金额】+【不可打折金额】
        String totalAmount = order.getPayment().toString();

        // (可选) 订单不可打折金额,可以配合商家平台配置折扣活动,如果酒水不参与打折,则将对应金额填写至此字段
        // 如果该值未传入,但传入了【订单总金额】,【打折金额】,则该值默认为【订单总金额】-【打折金额】
        String undiscountableAmount = "0";

        // 卖家支付宝账号ID,用于支持一个签约账号下支持打款到不同的收款账号,(打款到sellerId对应的支付宝账号)
        // 如果该字段为空,则默认为与支付宝签约的商户的PID,也就是appid对应的PID
        String sellerId = "";

        // 订单描述,可以对交易或商品进行一个详细地描述,比如填写"购买商品2件共15.00元"
        String body = new StringBuilder().append("订单:").append(outTradeNo).append(",购买商品共:").append(totalAmount).toString();

        // 商户操作员编号,添加此参数可以为商户操作员做销售统计
        String operatorId = "test_operator_id";

        // (必填) 商户门店编号,通过门店号和商家后台可以配置精准到门店的折扣信息,详询支付宝技术支持
        String storeId = "test_store_id";

        // 业务扩展参数,目前可添加由支付宝分配的系统商编号(通过setSysServiceProviderId方法),详情请咨询支付宝技术支持
        ExtendParams extendParams = new ExtendParams();
        extendParams.setSysServiceProviderId("2088100200300400500");

        // 支付超时,定义为120分钟
        String timeoutExpress = "120m";

        // 商品明细列表,需填写购买商品详细信息,
        List<GoodsDetail> goodsDetailList = new ArrayList<GoodsDetail>();
        List<OrderItem> orderItems = orderItemMapper.getOrderItemByUserIdAndOrderNo(userId, order.getOrderNo());
        for (OrderItem orderItem : orderItems){
            GoodsDetail goods1 = GoodsDetail.newInstance(orderItem.getProductId().toString(),
                    orderItem.getProductName(),
                    BigDecimalUtil.mul(orderItem.getCurrentUnitPrice().doubleValue(),orderItem.getQuantity()).longValue(),
                    orderItem.getQuantity());
            goodsDetailList.add(goods1);
        }


        // 创建扫码支付请求builder,设置请求参数
        AlipayTradePrecreateRequestBuilder builder = new AlipayTradePrecreateRequestBuilder()
                .setSubject(subject).setTotalAmount(totalAmount).setOutTradeNo(outTradeNo)
                .setUndiscountableAmount(undiscountableAmount).setSellerId(sellerId).setBody(body)
                .setOperatorId(operatorId).setStoreId(storeId).setExtendParams(extendParams)
                .setTimeoutExpress(timeoutExpress)
                .setNotifyUrl(PropertiesUtil.getProperty("alipay.callback.url"))//支付宝服务器主动通知商户服务器里指定的页面http路径,根据需要设置
                .setGoodsDetailList(goodsDetailList);
        /** 一定要在创建AlipayTradeService之前调用Configs.init()设置默认参数
         *  Configs会读取classpath下的zfbinfo.properties文件配置信息,如果找不到该文件则确认该文件是否在classpath目录
         */
        Configs.init("zfbinfo.properties");

        /** 使用Configs提供的默认参数
         *  AlipayTradeService可以使用单例或者为静态成员对象,不需要反复new
         */
        tradeService = new AlipayTradeServiceImpl.ClientBuilder().build();
        AlipayF2FPrecreateResult result = tradeService.tradePrecreate(builder);
        switch (result.getTradeStatus()) {
            case SUCCESS:
                log.info("支付宝预下单成功: )");

                AlipayTradePrecreateResponse response = result.getResponse();
                dumpResponse(response);
                File folder = new File(path);
                if (!folder.exists()){
                    folder.setWritable(true);
                    folder.mkdirs();
                }
                // 需要修改为运行机器上的路径
                String qrPath = String.format(path+"/qr-%s.png",
                        response.getOutTradeNo());
                String qrFileName = String.format("qr-%s.png",
                        response.getOutTradeNo());
                ZxingUtils.getQRCodeImge(response.getQrCode(),256,qrPath);
                File targetFile = new File(path, qrFileName);
                try {
                    FTPUtil.uploadFile(Lists.newArrayList(targetFile));
                } catch (IOException e) {
                    log.error("上传到ftp服务器的二维码异常");
                    e.printStackTrace();
                }
                log.info("filePath:" + qrPath);
                String qrurl= PropertiesUtil.getProperty("ftp.server.http.prefix")+targetFile.getName();
                map.put("qrurl",qrurl);
                return ServerResponse.createBySuccess(map);
            case FAILED:
                log.error("支付宝预下单失败!!!");
                return ServerResponse.createByError("支付宝预下单失败!!!");
            case UNKNOWN:
                log.error("系统异常,预下单状态未知!!!");
                return ServerResponse.createByError("系统异常,预下单状态未知!!!");
            default:
                log.error("不支持的交易状态,交易返回异常!!!");
                return ServerResponse.createByError("不支持的交易状态,交易返回异常!!!");
        }
    }

    // 简单打印应答
    private void dumpResponse(AlipayResponse response) {
        if (response != null) {
            log.info(String.format("code:%s, msg:%s", response.getCode(), response.getMsg()));
            if (StringUtils.isNotEmpty(response.getSubCode())) {
                log.info(String.format("subCode:%s, subMsg:%s", response.getSubCode(),
                        response.getSubMsg()));
            }
            log.info("body:" + response.getBody());
        }
    }


    public ServerResponse alipaycall(Map<String,String> map){
        Long out_trade_no = Long.valueOf(map.get("out_trade_no"));
        String trade_no = map.get("trade_no");
        String trade_status = map.get("trade_status");
        Order order = orderMapper.selectByOrderNo(out_trade_no);
        if (order==null){
            return ServerResponse.createByError("非快乐慕商城的订单,请忽略");
        }
        if (order.getStatus()>=Const.order.PAID.getCode()){
            return ServerResponse.createBySuccess("支付宝重复调用");
        }
        if (Const.AlipayCallback.TRADE_STATUS_TRADE_SUCCESS.equals(trade_status)){
            order.setStatus(Const.order.PAID.getCode());
            order.setPaymentTime(DateUtils.strToDate(map.get("gmt_create")));
            orderMapper.updateByPrimaryKey(order);
        }
        PayInfo payInfo = new PayInfo();
        payInfo.setUserId(order.getUserId());
        payInfo.setOrderNo(order.getOrderNo());
        payInfo.setPayPlatform(Const.PayPlatformEnum.ALI.getCode());
        payInfo.setPlatformNumber(trade_no);
        payInfo.setPlatformStatus(trade_status);

        payInfoMapper.insert(payInfo);
        return ServerResponse.createBySuccess();
    }

    public ServerResponse queryOrderPayStatus(Integer userId,Long orderNo){
        Order order = orderMapper.selectByUserIdAndOrderNo(userId, orderNo);
        if (order==null){
            return ServerResponse.createByError("没有该订单");
        }

        if (order.getStatus()>=Const.order.PAID.getCode()){
            return ServerResponse.createBySuccess(true);
        }
        return ServerResponse.createBySuccess(false);
    }
}
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