支付宝App支付源码_花呗app源码

支付宝APP支付,无论在文档上,还是在demo上,比微信支付高好几个level吧.使用起来非常方便,基本上不会有什么太大的坑,只要严格按照demo,和文档进行操作的话,基本上可以一把过的.在这里要提示下,加签和验签使用的公钥问题:加签是在开发商平台查看公钥的时候的:应用公钥,而回调验签使用的,在开发商平台查看公钥的时候的:支付公钥.一定要注意这个,要不回调会报错的.

Controller:

  @PostMapping("/payRequest")
    @ApiOperation("统一下单alipay支付")
    public Result payRequest(@RequestBody MallOrderPayDto mallOrderPayDto) throws Exception {

        log.info("ali 支付:{}",mallOrderPayDto);

        try {
            Map<String,String> maps =  aliPayService.payRequest(mallOrderPayDto);
            return super.success(maps);
        } catch (Exception e) {
            log.info("订单ali支付异常:{}",e);
            return super.error("订单数据异常!");
        }
    }


    @PostMapping(value = "/aliPayOrderCallBack")
    @ApiOperation("alipay支付回调")
    public Map<String, String> aliPayOrderCallBack(HttpServletRequest request){
        Map<String, String> map = new HashMap<String, String>();
        try {
            AliPayVO aliPayVo = friendsMallAliPayService.aliPayCallBack(request);
            aliPayService.aliPayOrderCallBack(aliPayVo);
            map.put("msg", "SUCCESS");
        } catch (Exception e) {
            e.printStackTrace();
            log.error("aliPayOrderCallBack Error.",e);
        }
        return map;
    }
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Service:

public interface AliPayService {

    //支付宝支付
    public Map<String, String> payRequest(OrderPayDto orderPayDto) throws Exception;

    //支付宝回调
    public AliPayVO aliPayCallBack(HttpServletRequest request) throws Exception;

    //支付宝订单支付回调业务处理
    public void aliPayOrderCallBack(AliPayVO aliPayVo) throws Exception;
}
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ServiceImpl:

@Slf4j
@Service
@Transactional(rollbackFor = Exception.class)
public class AliPayServiceImpl implements AliPayService {



    //订单支付支付宝回调地址
    public static String ALIPAY_ORDER_CALLBACK = "http://127.0.0.1:8080/api/alipay/aliPayOrderCallBack";
    

    @Override
    public Map<String, String> payRequest(OrderPayDto orderPayDto) throws Exception {

        Map<String, String> map = new HashMap<String, String>();

        //TODO 要查库.获取配置
        AlipayConfig alipayConfig = new AlipayConfig();

        alipayConfig.setUrl("https://openapi.alipay.com/gateway.do");
        alipayConfig.setAppId("2020920193812");//appId 
        alipayConfig.setRsaPrivateKey("aaaa");//私钥
        alipayConfig.setAlipayPublicKey("bbbbbbb");//公钥
        alipayConfig.setCharset("utf-8");//编码格式
        alipayConfig.setFormat("json");//返回格式
        alipayConfig.setSignType("RSA2");//签名方式

        //实例化客户端
        log.info("实例化客户端开始=====================");
        AlipayClient alipayClient = new DefaultAlipayClient(alipayConfig.getUrl(), alipayConfig.getAppId(),
                alipayConfig.getRsaPrivateKey(), alipayConfig.getFormat(), alipayConfig.getCharset(),
                alipayConfig.getAlipayPublicKey(), alipayConfig.getSignType());
        AlipayTradeAppPayRequest aliPayRequest = new AlipayTradeAppPayRequest();

        AlipayTradePayModel model = new AlipayTradePayModel();

        log.info("封装ali支付请求参数==================");
       
        //支付编号
        String orderNum = PayUtils.getOrderNumber();
        log.info("支付订单号:{}",orderNum);
        model.setOutTradeNo(orderNum);
        //订单名称
        model.setSubject("订单描述");
        //支付总金额
        String money = totalAmount.toString()+".00"; //此处是测试demo的时候临时加的,自行处理下String的,小数点后两位.
        model.setTotalAmount(money);
        //超时则关闭订单
        model.setTimeoutExpress("30m");
        aliPayRequest.setBizModel(model);

        //异步回调地址
        aliPayRequest.setNotifyUrl(ALIPAY_ORDER_CALLBACK);

        AlipayTradeAppPayResponse response = alipayClient.sdkExecute(aliPayRequest);
        map.put("aliPaySdk", response.getBody());

        log.info("支付宝支付加密结果:{}",map);
        
        log.info("alipay 参数封装完成,开始入库流水=================订单号:{}",orderNum);

        return map;
    }

    @Override
    public AliPayVO aliPayCallBack(HttpServletRequest request) throws Exception {

        AlipayConfig alipayConfig = new AlipayConfig();

        //获取支付宝反馈信息
        Map<String, String> params = new HashMap<String, String>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext(); ) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
            }
            params.put(name, valueStr);
        }
        //调用SDK验证签名
        boolean signVerified = AlipaySignature.rsaCheckV1(params, alipayConfig.getAlipayPublicKey(), alipayConfig.getCharset(), alipayConfig.getSignType());
        //校验签名
        if (!signVerified) {
            log.error("1.支付宝支付回调签名不正确");
            throw new Exception("支付宝支付回调签名不正确");
        }
        //校验支付状态
        if (!request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            log.error("2.支付宝支付回调支付状态不正确");
            throw new Exception("支付宝支付回调支付状态不正确");
        }
        AliPayVO aliPayVo = new AliPayVO();
        //商户订单号-系统生成订单号
        String outTradeNo = request.getParameter("out_trade_no");
        aliPayVo.setOutTradeNo(outTradeNo);
        //支付订单号-阿里28位订单号
        String tradeNo = request.getParameter("trade_no");
        aliPayVo.setPayOrderNo(tradeNo);
        //交易状态
        String tradeStatus = request.getParameter("trade_status");
        aliPayVo.setTradeStatus(tradeStatus);
        //资金总额
        String totalAmount = request.getParameter("total_amount");
        aliPayVo.setTotalAmount(totalAmount);
        //卖家支付宝账户
        String sellerId = request.getParameter("seller_id");
        aliPayVo.setSellerId(sellerId);
        //买家支付宝账户
        String buyerLogonId = request.getParameter("buyer_logon_id");
        aliPayVo.setBuyerLogoinId(buyerLogonId);
        //签名方式
        aliPayVo.setSignType(alipayConfig.getSignType());
        //签名
        String sign = request.getParameter("sign");
        aliPayVo.setSign(sign);
        return aliPayVo;
    }

    @Override
    public void aliPayOrderCallBack(AliPayVO aliPayVo) throws Exception {
        log.info("3.alipay 回调开始============:{}",aliPayVo);
        if (aliPayVo != null && StringUtil.isNotEmpty(aliPayVo.getOutTradeNo())) {
            synchronized (aliPayVo.getOutTradeNo()) {
                MallUserRechargeDetail order = friendsMallUserRechargeDetailService.selectByOrderId(aliPayVo.getOutTradeNo());
                if (order.getStatus().equals(0)) {
                    if (aliPayVo.getTradeStatus().equals("TRADE_FINISHED")) {
                        //交易创建，等待买家付款
                        log.info("4.交易创建，等待买家付款:TRADE_FINISHED");
                    } else if (aliPayVo.getTradeStatus().equals("WAIT_BUYER_PAY")) {
                        //未付款交易超时关闭，或支付完成后全额退款
                        log.info("5.未付款交易超时关闭，或支付完成后全额退款:WAIT_BUYER_PAY");
                    } else if (aliPayVo.getTradeStatus().equals("TRADE_CLOSED")) {
                        //交易结束，不可退款
                        log.info("6.交易结束，不可退款:TRADE_CLOSED");
                    } else if (aliPayVo.getTradeStatus().equals("TRADE_SUCCESS")) {
                        //交易支付成功
                        log.info("7.支付状态成功:TRADE_SUCCESS");

                        MallUserRechargeDetail mallUserRechargeDetail = friendsMallUserRechargeDetailService.selectByOrderId(aliPayVo.getOutTradeNo());
                        log.info("8.根据订单号,查询用户充值记录,订单号:{},充值记录:{}",aliPayVo.getOutTradeNo(),mallUserRechargeDetail);

                        //订单金额
                        BigDecimal payNumSum = new BigDecimal(mallUserRechargeDetail.getMoney());
                        log.info("9.订单金额:{}",payNumSum);

                        //资金总额
                        BigDecimal totalAmount = new BigDecimal(aliPayVo.getTotalAmount());
                        log.info("10.回调金额:{}",totalAmount);

                        //以防万一，校验金额
                        if (payNumSum.compareTo(totalAmount) != 0) {
                            log.error("11.***订单号: " + aliPayVo.getOutTradeNo() + "***支付宝支付金额与订单需支付金额不一致***支付宝支付金额为:" + totalAmount + " ***订单需支付金额总为:" + payNumSum + "***日期:" + new Date());
                            throw new Exception("订单金额和回调金额不一致.");
                        }

                        log.info("12.校验订单状态,防止重复回调======================");
                        if (mallUserRechargeDetail.getStatus() == 1){
                            log.error("13.***订单号: " + aliPayVo.getOutTradeNo() + "**********支付状态为已成功,人工处理==============");
                            throw new Exception("订单状态为已支付,后续不处理,有异常人工处理.");
                        }

						//中间的数据校验和业务处理省略了
                       
                        log.info( i > 0 ? " 28.交易日志记录保存成功!" : "交易日志记录保存失败!");


                    }
                } else {
                    log.info("29.该订单已支付处理，交易编号为: " + aliPayVo.getOutTradeNo());
                }
            }
        }
    }

}

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实体:

@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class AlipayConfig {

    //appId
    private String appId;
    //私钥
    private String rsaPrivateKey;
    //请求网关地址
    private String url;
    //编码格式
    private String charset;
    //返回格式
    private String format;
    //支付宝公钥
    private String alipayPublicKey;
    //签名方式
    private String signType;
}
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依赖:

		<dependency>
			<groupId>com.alipay.sdk</groupId>
			<artifactId>alipay-sdk-java</artifactId>
			<version>${alipay-sdk-java.version}</version>
		</dependency>
<alipay-sdk-java.version>4.9.71.ALL</alipay-sdk-java.version>
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