一、前期准备：

SpringBoot对接支付宝当面付和手机网站支付_springboot 支付宝当面付_Biubiubiuexo的博客-CSDN博客

配置成功后获得到我们开发需要的：支付宝公钥、商户私钥、应用ID

服务商开通链接：支付宝服务商平台

开通服务商之后获取app_auth_token

注：支付宝规定服务商和商户账号需要分离，服务商没有支付能力

服务商开通流程

二、代码实现：

1.新建Merchant商户实体类：

package com.yuheng.payment.models;import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Getter;
import lombok.Setter;/*** 收款商户* @author michael* @since  2022/11/15*/
@Getter
@Setter
@Builder
@AllArgsConstructor
public class Merchant {/*** 应用appID*/private String appId;/*** 应用密钥*/private String alipayAppKey;/*** 商户密钥*/private String mchKey;/*** 第三方应用商户token(若为空则为普通支付模式，不为空为服务商代调用模式)*/private String appAuthToken;}

2.支付宝服务层：

package com.yuheng.payment.services;import cn.hutool.core.util.StrUtil;
import com.alibaba.fastjson.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.domain.AlipayTradePrecreateModel;
import com.alipay.api.domain.AlipayTradeQueryModel;
import com.alipay.api.domain.AlipayTradeWapPayModel;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePrecreateRequest;
import com.alipay.api.request.AlipayTradeQueryRequest;
import com.alipay.api.request.AlipayTradeWapPayRequest;
import com.alipay.api.response.AlipayTradeWapPayResponse;
import com.ijpay.alipay.AliPayApi;
import com.ijpay.alipay.AliPayApiConfig;
import com.ijpay.alipay.AliPayApiConfigKit;
import com.ijpay.core.kit.HttpKit;
import com.ijpay.core.kit.WxPayKit;
import com.yuheng.payment.constants.PayStatus;
import com.yuheng.payment.exceptions.InternalRuntimeException;
import com.yuheng.payment.exceptions.PrePayResponseException;
import com.yuheng.payment.models.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Map;import static java.lang.System.out;/*** 支付宝官方* @author michael* @since  2022/11/15*/
public class ZhifubaoService implements SuperService {private static final Logger log = LoggerFactory.getLogger(ZhifubaoService.class);private static String serviceUrl = "https://openapi.alipay.com/gateway.do";/*** 支付宝扫码支付* @param request* @param merchant* @return* @throws AlipayApiException*/@Overridepublic PrePayResponse zfbQr(PrePayRequest request, Merchant merchant) throws AlipayApiException {AlipayClient alipayClient = new DefaultAlipayClient(serviceUrl,merchant.getAppId(),merchant.getMchKey(),"json","UTF-8",merchant.getAppKey(),"RSA2");AlipayTradePrecreateRequest alipayTradePrecreateRequest = new AlipayTradePrecreateRequest();alipayTradePrecreateRequest.setReturnUrl(request.getReturnUrl());alipayTradePrecreateRequest.setNotifyUrl(request.getNotifyUrl());JSONObject bizContent = new JSONObject();bizContent.put("out_trade_no", request.getOrderNo());// 传入金额单位为 分，换成支付宝单位 元bizContent.put("total_amount", Double.toString(request.getAmount() / 100.00));bizContent.put("subject", request.getBody());alipayTradePrecreateRequest.setBizContent(bizContent.toString());String resultStr = null;// 为第三方应用代调用模式if (StrUtil.isNotEmpty(merchant.getAppAuthToken())){alipayTradePrecreateRequest.putOtherTextParam("app_auth_token", merchant.getAppAuthToken());resultStr = alipayClient.execute(alipayTradePrecreateRequest,null,merchant.getAppAuthToken()).getBody();}else {// 普通商家模式resultStr = alipayClient.execute(alipayTradePrecreateRequest).getBody();}JSONObject jsonObject = JSONObject.parseObject(resultStr).getJSONObject("alipay_trade_precreate_response");String code = jsonObject.getString("code");if (!"10000".equals(code)){log.error("支付发起失败{}", jsonObject.getString("sub_msg"));}String qrCode = jsonObject.getString("qr_code");String outTradeNo = jsonObject.getString("out_trade_no");
//        return jsonObject.getJSONObject("alipay_trade_precreate_response").getString("qr_code");return PrePayResponse.builder().orderNo(outTradeNo).isRedirect(false).payText(qrCode).payStatus(PayStatus.PAYING).build();}/*** 手机网页支付* @param* @param merchant* @param request* @return* @throws AlipayApiException*/@Overridepublic PrePayResponse zfbWeb(PrePayRequest request, Merchant merchant) throws AlipayApiException, IOException {AlipayClient alipayClient = new DefaultAlipayClient(serviceUrl,merchant.getAppId(),merchant.getMchKey(),"json","UTF-8",merchant.getAppKey(),"RSA2");AlipayTradeWapPayRequest alipayTradeWapPayRequest = new AlipayTradeWapPayRequest();alipayTradeWapPayRequest.setNotifyUrl(request.getNotifyUrl());alipayTradeWapPayRequest.setReturnUrl(request.getReturnUrl());JSONObject bizContent = new JSONObject();bizContent.put("out_trade_no", request.getOrderNo());// 传入金额单位为 分，换成支付宝单位 元bizContent.put("total_amount", Double.toString(request.getAmount() / 100.00));bizContent.put("subject", request.getBody());bizContent.put("product_code", "QUICK_WAP_WAY");alipayTradeWapPayRequest.setBizContent(bizContent.toString());// 为第三方应用代调用模式if (StrUtil.isNotEmpty(merchant.getAppAuthToken())){alipayTradeWapPayRequest.putOtherTextParam("app_auth_token", merchant.getAppAuthToken());}AlipayTradeWapPayResponse alipayTradeWapPayResponse = alipayClient.pageExecute(alipayTradeWapPayRequest,"get");String path = alipayTradeWapPayResponse.getBody();return PrePayResponse.builder().payText(path).isRedirect(false).payStatus(PayStatus.PAYING).build();}/*** @param request* 支付宝异步通知* @return*/@Overridepublic PayNotify payNotify(HttpServletRequest request) {// 获取支付宝POST过来反馈信息Map<String, String> params = AliPayApi.toMap(request);log.debug("收到支付宝支付原始通知："+params);PayNotify notifyResponse = PayNotify.builder().orderNo(params.get("out_trade_no")).outOrderNo(params.get("trade_no")).payStatus(PayStatus.PAYING).build();if ("TRADE_SUCCESS".equals( params.get("trade_status"))) {notifyResponse.setPayTime(timeFormat(params.get("gmt_payment")));notifyResponse.setPayStatus(PayStatus.PAID);}notifyResponse.setRawSignObject(params);return notifyResponse;}/*** 签名验证* @param response* @param merchant* @return* @throws AlipayApiException*/@Overridepublic boolean verifyPayNotify(PayNotify response, Merchant merchant) throws AlipayApiException {return AlipaySignature.rsaCheckV1((Map<String, String>) response.getRawSignObject(), merchant.getAppKey(), "UTF-8", "RSA2");}/*** 根据订单号进行查询* @param orderNo 内部订单编号* @param merchant 商户信息* @return* @throws AlipayApiException*/@Overridepublic PayResult payOrderQuery(String orderNo, Merchant merchant) throws AlipayApiException {AlipayClient alipayClient = new DefaultAlipayClient(serviceUrl,merchant.getAppId(),merchant.getMchKey(),"json","GBK",merchant.getAppKey(),"RSA2");AlipayTradeQueryRequest alipayTradeQueryRequest = new AlipayTradeQueryRequest();JSONObject bizContent = new JSONObject();bizContent.put("out_trade_no", orderNo);alipayTradeQueryRequest.setBizContent(bizContent.toString());alipayTradeQueryRequest.putOtherTextParam("app_auth_token",merchant.getAppAuthToken());String body =  alipayClient.execute(alipayTradeQueryRequest).getBody();JSONObject jsonObject = JSONObject.parseObject(body).getJSONObject("alipay_trade_query_response");String code = jsonObject.getString("code");if (!"10000".equals(code)){throw new InternalRuntimeException("发起查询失败，原因["+code+":"+ jsonObject.getString("sub_msg")+"]");}String tradeStatus = jsonObject.getString("trade_status");PayStatus payStatus;switch (tradeStatus){case "TRADE_FINISHED" :payStatus = PayStatus.FINISHED;break;case "TRADE_SUCCESS" :payStatus = PayStatus.PAID;break;case "TRADE_CLOSED" :payStatus = PayStatus.CLOSE;break;default:payStatus = PayStatus.PAYING;}return PayResult.builder().outOrderNo(jsonObject.getString("trade_no")).orderNo(jsonObject.getString("out_trade_no")).payStatus(payStatus).build();}/*** 时间戳转时间字符串* @param timeStr 时间戳Long* @return String 时间*/private Long timeFormat(String timeStr){DateFormat dateFormat = new SimpleDateFormat("yyyyMMddHHmmss");try {return dateFormat.parse(timeStr).getTime();} catch (ParseException e) {e.printStackTrace();}return null;}/*** 时间戳转时间字符串* @param time 时间戳Long* @return String 时间*/private String timeFormat(Long time){return new SimpleDateFormat("yyyyMMddHHmmss").format(time);}}

3.支付宝实现层：

private static Merchant getMerchant(){return Merchant.builder().appId("服务商的应用ID").mchKey("服务商的商户密钥").alipayAppKey("服务商的支付宝公钥").appAuthToken("商户授权成功后得到的TOKEN").build();}/*** 二维码扫码支付*/@Testpublic void testPay(){Client client = Client.newInstance(PaySuper.ALIPAY);PrePayRequest request = PrePayRequest.builder().amount(1).body("支付宝扫码支付测试").payMethod(PayMethod.ZFB_QR).notifyUrl("你的异步通知地址").build();PrePayResponse response = client.prePay(request,getMerchant());System.out.println(JSONUtil.toJsonStr(response));}/*** 根据外部订单号进行查询*/@Testpublic void testQuery(){Client client = Client.newInstance(PaySuper.ALIPAY);PayResult response = client.payOrderQuery("订单号",getMerchant());System.out.println(JSONUtil.toJsonStr(response));}/*** 注意：订单创建实际创建时间也为用户支付时间，非唤起收银台时间。* @param*/@Testpublic void wapPay(){Client client = Client.newInstance(PaySuper.ALIPAY);PrePayRequest request = PrePayRequest.builder().amount(1).body("支付宝网页支付测试").payMethod(PayMethod.ZFB_WEB).returnUrl("你的回调地址").notifyUrl("你的异步通知地址").build();PrePayResponse prePayResponse = client.prePay(request, getMerchant());System.out.println(JSONUtil.toJsonStr(prePayResponse));}@Testpublic static void main(String[] args) throws AlipayApiException {Client client = Client.newInstance(PaySuper.ALIPAY);//回调的待验签字符串String resultInfo = "异步通知地址返回的通知信息";//对待签名字符串数据通过&进行拆分String [] temp = resultInfo.split("&");HashMap<String, String> map =  new HashMap<String, String>();//把拆分数据放在map集合内for (int i = 0; i < temp.length; i++) {String[] arr = temp[i].split("=", 2); //通过"="号分割成2个数据String[] tempAagin = new String[arr.length]; //再开辟一个数组用来接收分割后的数据for (int j = 0; j < arr.length; j++) {tempAagin[j] = arr[j];}map.put(tempAagin[0], tempAagin[1]);}System.out.println(map);//验签方法PayNotify payNotify = PayNotify.builder().rawSignObject(map).build();boolean signVerified = client.verifyPayNotify(payNotify,getMerchant());if(signVerified){// TODO 验签成功后System.out.println("success");}else{System.out.println("fail");}}

4.商户授权服务商平台：授权流程https://opensupport.alipay.com/support/helpcenter/198/201602494631?ant_source=manual&recommend=9784af7814a1ec663089e796d8a7b4ce

（1）拼接授权URL：

public String AuthorizationUrl(String mchId,String outAppId) throws AlipayApiException {// 第一步拼接授权地址，商户扫码进行授权com.yuheng.payment.models.Merchant serviceMerchant = getServiceMerchant(outAppId);AlipayClient alipayClient = new DefaultAlipayClient(serviceUrl,serviceMerchant.getAppId(),serviceMerchant.getMchKey(),"json","GBK",serviceMerchant.getAppKey(),"RSA2");AlipayOpenAuthAppauthInviteCreateRequest request = new AlipayOpenAuthAppauthInviteCreateRequest();String redirectUrl = getRedirectUrl();JSONObject bizContent = new JSONObject();bizContent.put("auth_app_id",serviceMerchant.getAppId());bizContent.put("redirect_url",redirectUrl);request.setBizContent(bizContent.toString());AlipayOpenAuthAppauthInviteCreateResponse response = alipayClient.execute(request);System.out.println("::::::::::::" + response.getTaskPageUrl());return "https://openauth.alipay.com/oauth2/appToAppAuth.htm?app_id="+ serviceMerchant.getAppId()  // 第三方应用ID+"&redirect_uri="+"http://192.168.1.189:8005/api/merchant/redirect"+"&state="+mchId;/*return "https://openauth.alipay.com/oauth2/appToAppAuth.htm?app_id="+ appId  // 第三方应用ID+"&redirect_uri="+"https://xqht.hnyuheng.net/";*/}@Override@Transactional(rollbackFor = Exception.class)public void updateAppAuthTokenById(String appAuthToken, String id) {merchantRepository.addAppAuthTokenById(appAuthToken,id);}@Overridepublic MerchantDto selectServiceMerchant(String appId) {Merchant merchant = merchantRepository.findByAppIdAndIsService(appId,true);return merchantMapper.toDto(merchant);}private String getRedirectUrl(){return RequestHolder.getAppUrl() + "/api/merchant/redirect/";}

（2）商户点击链接或扫码成功授权后回调地址返回app_auth_token（回调地址一定要与第三方应用配置的回调地址一模一样）

授权回调接口：

package com.yuheng.modules.mch.rest;import cn.hutool.core.util.ObjectUtil;
import com.alibaba.fastjson.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.request.AlipayOpenAuthTokenAppRequest;
import com.alipay.api.response.AlipayOpenAuthTokenAppResponse;
import com.yuheng.annotation.AnonymousAccess;
import com.yuheng.exception.BadRequestException;
import com.yuheng.modules.mch.constant.PayType;
import com.yuheng.modules.mch.domain.MchApp;
import com.yuheng.modules.mch.service.MchAppService;
import com.yuheng.modules.mch.service.MerchantService;
import com.yuheng.modules.mch.service.dto.MerchantDto;
import com.yuheng.payment.constants.PaySuper;
import com.yuheng.payment.models.Merchant;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;/*** 支付宝商户授权成功后返回地址* @author liuzhaojun* @createDate 2023-03-29 10:13*/
@Slf4j
@RestController
@RequestMapping("/api/merchant/redirect")
@RequiredArgsConstructor
public class AlipayRedirectURLController {// 服务环境@Value("${alipay.serviceUrl}")private String serviceUrl;private final MerchantService merchantService;private final MchAppService mchAppService;@GetMapping@AnonymousAccesspublic ResponseEntity<Object> redirectURL(@RequestParam(value = "app_id") String outAppId, @RequestParam("state") String mchId, @RequestParam("source") String source, @RequestParam("app_auth_code") String appAuthCode) throws AlipayApiException {// 商户同意授权之后支付宝回调参数--->用appAuthCode换取appAuthTokenMerchant serviceMerchant = getServiceMerchant(outAppId);if (ObjectUtil.isNull(serviceMerchant)) throw new BadRequestException("未查到服务商信息");AlipayClient alipayClient = new DefaultAlipayClient(serviceUrl,outAppId,serviceMerchant.getMchKey(),"json","GBK",serviceMerchant.getAppKey(),"RSA2");System.out.println("app_id=" + outAppId + ";source=" + source + ";app_auth_code=" +appAuthCode + ";state=" + mchId);JSONObject bizContent = new JSONObject();// 授权方式为通过授权码授权bizContent.put("grant_type","authorization_code");bizContent.put("code",appAuthCode);AlipayOpenAuthTokenAppRequest request = new AlipayOpenAuthTokenAppRequest();request.setBizContent(bizContent.toString());AlipayOpenAuthTokenAppResponse response = alipayClient.execute(request);if(response.isSuccess()){System.out.println("Token:::::::::::" + response.getAppAuthToken());System.out.println("RefreshToken:::::::::::" + response.getAppRefreshToken());// 新增字段app_auth_tokenmerchantService.updateAppAuthTokenById(response.getAppAuthToken(),mchId);// 将商户状态改为激活merchantService.enable(mchId);return new ResponseEntity<>(HttpStatus.OK);} else {String errorInfo = JSONObject.toJSONString(response);log.error("调用失败" + errorInfo);return new ResponseEntity<>(errorInfo,HttpStatus.BAD_REQUEST);}}private Merchant getServiceMerchant(String outAppId){// 此处appId是支付宝应用ID (应用表的外部应用ID) => 查出上游为支付宝且绑定了支付宝第三方应用的商户信息MchApp mchApp = mchAppService.findByOutAppId(outAppId, PaySuper.ALIPAY.getName(), PayType.ALIPAY_THIRD.getCode());// 查出服务商信息（以字段is_service为判断依据）MerchantDto merchantDto = merchantService.selectServiceMerchant(mchApp.getId());return new Merchant(mchApp.getOutAppId(), mchApp.getOutAppSecret(),merchantDto.getOutMchId(),merchantDto.getOutMchKey(),"");}}

关于回调地址：

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对接支付宝服务商当面付手机网页支付

一、前期准备：

二、代码实现：

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