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支付寶付款碼支付接入流程。

官方文檔地址:?小程序文檔 - 支付寶文檔中心

接入前提:

去控制臺申請appId、應用私鑰、支付寶公鑰(注意不是應該公鑰)、環境區分(有沙箱和正式環境區分)

代碼貼圖:

service代碼

?實現類方法

?代碼如下:

@Service @Slf4j public class AliPayServiceImpl implements AliPayService {// 支付寶網關名、partnerId和appId@Value("${ali.pay.openApiDomain}")public String openApiDomain;//public String mcloud_api_domain = "http://mcloudmonitor.com/gateway.do";// public String pid = "";@Value("${ali.pay.appId}")public String appId;// #RSA私鑰、公鑰和支付寶公鑰@Value("${ali.pay.privateKey}")public String privateKey;//對應支付寶公鑰@Value("${ali.pay.alipayPublicKey}")public String alipayPublicKey;/*** 支付寶付款碼支付** @param payInfoVo* @return*/@Override@Transactional(rollbackFor = Exception.class)public ResponseWrapper aliPay(PayInfoVo payInfoVo, String ordNo) throws AlipayApiException, InterruptedException {AlipayClient alipayClient = new DefaultAlipayClient(openApiDomain, appId, privateKey, "json", "GBK", alipayPublicKey, "RSA2");AlipayTradePayRequest request = new AlipayTradePayRequest();Map<Object,Object> map = new HashMap<>();map.put("out_trade_no", ordNo);map.put("total_amount", payInfoVo.getMoney());//標題 必填map.put("subject", "訂單付款");map.put("scene", "bar_code");map.put("auth_code", payInfoVo.getAuthCode());Gson gson = new Gson();String json = gson.toJson(map);request.setBizContent(json);AlipayTradePayResponse response = alipayClient.execute(request);log.info("支付寶支付返回支付信息 ：" + GsonUtils.toJsonString(response));if (response.isSuccess()) {log.info("支付寶返回成功走code邏輯開始");if (response.getCode().equals(AliPayTradeCodeConstant.RETURN_CODE.getCode())) {return new ResponseWrapper(true, ReturnCode.PAY_SUCCESS.getCode(), "支付寶支付成功", null);}if (response.getCode().equals(AliPayTradeCodeConstant.WAIT_PAY.getCode())) {log.info("支付中----" + "進入支付中判斷");//調用失敗的話進行輪詢查詢返回結果Boolean payResult =ClientUtils.synGetResult(30000, 5000, () -> aliPayQuery(ordNo));log.info("支付中輪詢查看支付結果" + payResult);if (payResult != null && payResult) {return new ResponseWrapper(true, ReturnCode.PAY_SUCCESS.getCode(), "支付寶支付成功", null);}log.info("超時走撤單接口");//撤銷訂單Boolean aliPayCancel = aliPayCancel(ordNo);if (aliPayCancel) {log.info("撤單成功");return new ResponseWrapper(true, ReturnCode.CANCEL_SUCCESS.getCode(), "超時撤單成功", null);} else {throw new BaseException("支付寶超時撤單失敗");}}throw new BaseException("支付寶支付失敗,失敗原因為" + response.getMsg(), response.getMsg());} else {log.info("支付寶調用失敗");throw new BaseException("支付寶支付失敗,失敗原因為" + response.getMsg(), response.getMsg());}}/*** 查詢交易狀態** @throws AlipayApiException*/public Boolean aliPayQuery(String ordNo) {try {AlipayClient alipayClient = new DefaultAlipayClient(openApiDomain, appId, privateKey, "json", "GBK", alipayPublicKey, "RSA2");AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();//訂單支付時傳入的商戶訂單號,和支付寶交易號不能同時為空、trade_no,out_trade_no如果同時存在優先取trade_no//支付寶交易號，和商戶訂單號不能同時為空Map<Object,Object> map = new HashMap<>();map.put("out_trade_no", ordNo);Gson gson = new Gson();String json = gson.toJson(map);request.setBizContent(json);AlipayTradeQueryResponse response = alipayClient.execute(request);if (response.isSuccess()) {log.info("支付寶查詢結果返回結果報文--" + JSON.toJSONString(response));if (response.getTradeStatus().equals(AliPayTradeStatusConstant.TRADE_SUCCESS.getCode()) || response.getTradeStatus().equals(AliPayTradeStatusConstant.TRADE_FINISHED.getCode())) {return Boolean.TRUE;} else if(response.getTradeStatus().equals(AliPayTradeStatusConstant.WAIT_BUYER_PAY.getCode())){log.info("查詢返回不是支付成功，" + "失敗原因為：用戶支付中" );return null;}else {log.error("查詢返回不是支付成功，" + "失敗原因為：" + response.getSubMsg());return null;}} else {log.error("調用查詢接口失敗");return null;}} catch (Exception e) {log.error("AliPayServiceImpl aliPayQuery error:",e);return null;}}/*** 交易關閉接口** @throws AlipayApiException*/public void aliPayClose() throws AlipayApiException {AlipayClient alipayClient = new DefaultAlipayClient(openApiDomain, appId, privateKey, "json", "GBK", alipayPublicKey, "RSA2");AlipayTradeCloseRequest request = new AlipayTradeCloseRequest();Map<Object,Object> map = new HashMap<>();map.put("trade_no", "2013112611001004680073956707");Gson gson = new Gson();String json = gson.toJson(map);request.setBizContent(json);AlipayTradeCloseResponse response = alipayClient.execute(request);if (response.isSuccess()) {System.out.println("調用成功");} else {System.out.println("調用失敗");}}/*** 交易撤銷接口** @throws AlipayApiException*/public Boolean aliPayCancel(String ordNo) throws AlipayApiException {AlipayClient alipayClient = new DefaultAlipayClient(openApiDomain, appId, privateKey, "json", "GBK", alipayPublicKey, "RSA2");AlipayTradeCancelRequest request = new AlipayTradeCancelRequest();Map<Object,Object> map = new HashMap<>();map.put("out_trade_no", ordNo);Gson gson = new Gson();String json = gson.toJson(map);request.setBizContent(json);AlipayTradeCancelResponse response = alipayClient.execute(request);log.info("撤銷訂單接口返回--" +GsonUtils.toJsonString(response));if (response.isSuccess()) {if (response.getCode().equals(AliPayTradeCodeConstant.RETURN_CODE.getCode())) {log.info("撤銷訂單接口返回10000");return true;}return false;} else {System.out.println("調用失敗");return false;}}/*** 退款** @throws Exception*/@Transactional(rollbackFor = Exception.class)@Overridepublic ResponseWrapper refund(String orderNo, String refundAmount) throws AlipayApiException {AlipayClient alipayClient = new DefaultAlipayClient(openApiDomain, appId, privateKey, "json", "GBK", alipayPublicKey, "RSA2");AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();Map<Object,Object> map = new HashMap<>();map.put("out_trade_no", orderNo);map.put("refund_amount", refundAmount);//部分退款唯一值map.put("out_request_no", UUID.randomUUID().toString().replaceAll("-", "").substring(0, 32));Gson gson = new Gson();String json = gson.toJson(map);request.setBizContent(json);AlipayTradeRefundResponse response = alipayClient.execute(request);if (response.isSuccess()) {System.out.println("調用成功");if (response.getCode().equals(AliPayTradeCodeConstant.RETURN_CODE.getCode())) {return new ResponseWrapper(true, ReturnCode.ALI_REFUNDZ_ERROR.getCode(), "支付寶退款成功", null);}//商戶賬戶余額不足if (response.getSubCode().equals(AliPayTradeCodeConstant.SELLER_BALANCE_NOT_ENOUGH.getCode())) {return new ResponseWrapper(false, response.getCode(), response.getSubMsg(), response.getMsg());}}return new ResponseWrapper(false, response.getSubCode(), response.getSubMsg(), response.getSubMsg());} }

30秒查詢工具類代碼:

package com.zt.helios.utils.wx;import lombok.extern.slf4j.Slf4j;import java.util.concurrent.TimeUnit; import java.util.function.Supplier;/*** 第三方接口工具類** @version V1.0* @className ClientUtils* @date 2022/4/22**/ @Slf4j public class ClientUtils {/*** 同步返回結果** @param timeout 超時時間，單位：毫秒* @param cyclingTime 循環時間，單位：毫秒* @param supplier 業務邏輯，非null：完成；null：失敗；* @methodName: synGetResult* @return: boolean* @author: ybw* @date: 2022/4/22**/public static <T> T synGetResult(long timeout, long cyclingTime, Supplier<T> supplier) {if (cyclingTime > timeout) {//如果循環時間>超時時間log.error("ClientUtils synGetResult cyclingTime > timeout");return null;}long start = System.currentTimeMillis();while (true) {T t = supplier.get();if (t != null) {//返回結果log.info("ClientUtils synGetResult 獲取結果成功");return t;}try {TimeUnit.MILLISECONDS.sleep(cyclingTime);} catch (InterruptedException e) {log.error("ClientUtils synGetResult error:", e);}if (System.currentTimeMillis() - start > timeout) {//超時log.info("ClientUtils synGetResult 超時");return null;}}} }

退款代碼講解:

?代碼塊上面有。

整體接入流程就是這樣，相對簡單。前端掃碼會攜帶一個參數auth_code，這個參數是掃碼槍或者小白盒讀取到的付款碼數字。傳到后端，后端請求支付寶接口時攜帶。為必填選項

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