支付宝App支付源码

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;}

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;
}

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";@Overridepublic 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;}@Overridepublic 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;}@Overridepublic 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());}}}}}

实体:


@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class AlipayConfig {//appIdprivate 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;
}

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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