沙箱模拟支付宝支付3--支付的实现

1 支付流程实现

演示案例

主要参考程序员青戈的视频【支付宝沙箱支付快速集成版】支付宝沙箱支付快速集成版_哔哩哔哩_bilibili

对应的源码在

alipay-demo: 使用支付宝沙箱实现支付功能 - Gitee.com

以下是完整的实现步骤

1.首先导入相关的依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.example</groupId><artifactId>alipay-demo</artifactId><version>0.0.1-SNAPSHOT</version><name>alipay-demo</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring-boot.version>2.3.7.RELEASE</spring-boot.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>com.baomidou</groupId><artifactId>mybatis-plus-boot-starter</artifactId><version>3.4.2</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-configuration-processor</artifactId><optional>true</optional></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><scope>runtime</scope></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>com.alipay.sdk</groupId><artifactId>alipay-sdk-java</artifactId><version>4.22.110.ALL</version></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.7.20</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><exclusions><exclusion><groupId>org.junit.vintage</groupId><artifactId>junit-vintage-engine</artifactId></exclusion></exclusions></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.3.7.RELEASE</version><configuration><mainClass>com.example.alipay.AlipayDemoApplication</mainClass></configuration><executions><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build></project>

如果已有相关依赖，下面的依赖是必须要导入的

  <dependency><groupId>com.alipay.sdk</groupId><artifactId>alipay-sdk-java</artifactId><version>4.22.110.ALL</version></dependency><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.7.20</version></dependency>

使用的支付接口，主要进行的是电脑网页支付

官方的接口文档：统一收单下单并支付页面接口 - 支付宝文档中心

官方的接口内容

package com.java.sdk.demo;import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.AlipayConfig;
import com.alipay.api.domain.AlipayTradePagePayModel;
import com.alipay.api.domain.ExtUserInfo;
import com.alipay.api.domain.InvoiceKeyInfo;
import com.alipay.api.response.AlipayTradePagePayResponse;
import com.alipay.api.domain.InvoiceInfo;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.domain.ExtendParams;
import com.alipay.api.domain.GoodsDetail;
import com.alipay.api.domain.SubMerchant;import com.alipay.api.FileItem;
import java.util.Base64;
import java.util.ArrayList;
import java.util.List;public class AlipayTradePagePay {public static void main(String[] args) throws AlipayApiException {// 初始化SDKAlipayClient alipayClient = new DefaultAlipayClient(getAlipayConfig());// 构造请求参数以调用接口AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();AlipayTradePagePayModel model = new AlipayTradePagePayModel();// 设置商户订单号model.setOutTradeNo("20150320010101001");// 设置订单总金额model.setTotalAmount("88.88");// 设置订单标题model.setSubject("Iphone6 16G");// 设置产品码model.setProductCode("FAST_INSTANT_TRADE_PAY");// 设置PC扫码支付的方式model.setQrPayMode("1");// 设置商户自定义二维码宽度model.setQrcodeWidth(100L);// 设置订单包含的商品列表信息List<GoodsDetail> goodsDetail = new ArrayList<GoodsDetail>();GoodsDetail goodsDetail0 = new GoodsDetail();goodsDetail0.setGoodsName("ipad");goodsDetail0.setAlipayGoodsId("20010001");goodsDetail0.setQuantity(1L);goodsDetail0.setPrice("2000");goodsDetail0.setGoodsId("apple-01");goodsDetail0.setGoodsCategory("34543238");goodsDetail0.setCategoriesTree("124868003|126232002|126252004");goodsDetail0.setShowUrl("http://www.alipay.com/xxx.jpg");goodsDetail.add(goodsDetail0);model.setGoodsDetail(goodsDetail);// 设置订单绝对超时时间model.setTimeExpire("2016-12-31 10:05:01");// 设置二级商户信息SubMerchant subMerchant = new SubMerchant();subMerchant.setMerchantId("2088000603999128");subMerchant.setMerchantType("alipay");model.setSubMerchant(subMerchant);// 设置业务扩展参数ExtendParams extendParams = new ExtendParams();extendParams.setSysServiceProviderId("2088511833207846");extendParams.setHbFqSellerPercent("100");extendParams.setHbFqNum("3");extendParams.setIndustryRefluxInfo("{\"scene_code\":\"metro_tradeorder\",\"channel\":\"xxxx\",\"scene_data\":{\"asset_name\":\"ALIPAY\"}}");extendParams.setSpecifiedSellerName("XXX的跨境小铺");extendParams.setRoyaltyFreeze("true");extendParams.setCardType("S0JP0000");model.setExtendParams(extendParams);// 设置商户传入业务信息model.setBusinessParams("{\"mc_create_trade_ip\":\"127.0.0.1\"}");// 设置优惠参数model.setPromoParams("{\"storeIdType\":\"1\"}");// 设置请求后页面的集成方式model.setIntegrationType("PCWEB");// 设置请求来源地址model.setRequestFromUrl("https://");// 设置商户门店编号model.setStoreId("NJ_001");// 设置商户的原始订单号model.setMerchantOrderNo("20161008001");// 设置外部指定买家ExtUserInfo extUserInfo = new ExtUserInfo();extUserInfo.setCertType("IDENTITY_CARD");extUserInfo.setCertNo("362334768769238881");extUserInfo.setName("李明");extUserInfo.setMobile("16587658765");extUserInfo.setMinAge("18");extUserInfo.setNeedCheckInfo("F");extUserInfo.setIdentityHash("27bfcd1dee4f22c8fe8a2374af9b660419d1361b1c207e9b41a754a113f38fcc");model.setExtUserInfo(extUserInfo);// 设置开票信息InvoiceInfo invoiceInfo = new InvoiceInfo();InvoiceKeyInfo keyInfo = new InvoiceKeyInfo();keyInfo.setTaxNum("1464888883494");keyInfo.setIsSupportInvoice(true);keyInfo.setInvoiceMerchantName("ABC|003");invoiceInfo.setKeyInfo(keyInfo);invoiceInfo.setDetails("[{\"code\":\"100294400\",\"name\":\"服饰\",\"num\":\"2\",\"sumPrice\":\"200.00\",\"taxRate\":\"6%\"}]");model.setInvoiceInfo(invoiceInfo);request.setBizModel(model);// 第三方代调用模式下请设置app_auth_token// request.putOtherTextParam("app_auth_token", "<-- 请填写应用授权令牌 -->");AlipayTradePagePayResponse response = alipayClient.pageExecute(request, "POST");// 如果需要返回GET请求，请使用// AlipayTradePagePayResponse response = alipayClient.pageExecute(request, "GET");String pageRedirectionData = response.getBody();System.out.println(pageRedirectionData);if (response.isSuccess()) {System.out.println("调用成功");} else {System.out.println("调用失败");// sdk版本是"4.38.0.ALL"及以上,可以参考下面的示例获取诊断链接// String diagnosisUrl = DiagnosisUtils.getDiagnosisUrl(response);// System.out.println(diagnosisUrl);}}private static AlipayConfig getAlipayConfig() {String privateKey  = "<-- 请填写您的应用私钥，例如：MIIEvQIBADANB ... ... -->";String alipayPublicKey = "<-- 请填写您的支付宝公钥，例如：MIIBIjANBg... -->";AlipayConfig alipayConfig = new AlipayConfig();alipayConfig.setServerUrl("https://openapi.alipay.com/gateway.do");alipayConfig.setAppId("<-- 请填写您的AppId，例如：2019091767145019 -->");alipayConfig.setPrivateKey(privateKey);alipayConfig.setFormat("json");alipayConfig.setAlipayPublicKey(alipayPublicKey);alipayConfig.setCharset("UTF-8");alipayConfig.setSignType("RSA2");return alipayConfig;}
}

自身实现的接口

创建一个配置文件

alipay.appId=APPID
alipay.appPrivateKey=应用私钥
alipay.alipayPublicKey=支付宝公钥
alipay.notifyUrl=异步发送通知消息的 URL 地址。
alipay.returnUrl=回调地址

设置对应的配置类

package com.example.alipay.common;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;@Data
@Component
@ConfigurationProperties(prefix = "alipay")
public class AlipayConfig {private String appId;private String appPrivateKey;private String alipayPublicKey;private String notifyUrl;private String returnUrl;
}

对应的Controller接口

@GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {//创建交易单// 1. 创建Client，通用SDK提供的Client，负责调用支付宝的APIAlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);// 2. 创建 Request并设置Request参数AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类request.setNotifyUrl(aliPayConfig.getNotifyUrl());JSONObject bizContent = new JSONObject();bizContent.set("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号bizContent.set("total_amount", aliPay.getTotalAmount()); // 订单的总金额bizContent.set("subject", aliPay.getSubject());   // 支付的名称bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置request.setBizContent(bizContent.toString());// 执行请求，拿到响应的结果，返回给浏览器String form = "";try {AlipayTradePagePayResponse response = alipayClient.pageExecute(request);System.out.println(response); // 在控制台输出响应结果form = response.getBody(); // 调用SDK生成表单} catch (AlipayApiException e) {e.printStackTrace();}httpResponse.setContentType("text/html;charset=" + CHARSET);httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面httpResponse.getWriter().flush();httpResponse.getWriter().close();
}

如何异步通知商家

主要使用的是回调函数

@PostMapping("/notify")  // 注意这里必须是POST接口
public String payNotify(HttpServletRequest request) throws Exception {if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {System.out.println("=========支付宝异步回调========");Map<String, String> params = new HashMap<>();Map<String, String[]> requestParams = request.getParameterMap();for (String name : requestParams.keySet()) {params.put(name, request.getParameter(name));// System.out.println(name + " = " + request.getParameter(name));}String outTradeNo = params.get("out_trade_no");String gmtPayment = params.get("gmt_payment");String alipayTradeNo = params.get("trade_no");String sign = params.get("sign");String content = AlipaySignature.getSignCheckContentV1(params);boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名// 支付宝验签if (checkSignature) {// 验签通过System.out.println("交易名称: " + params.get("subject"));System.out.println("交易状态: " + params.get("trade_status"));System.out.println("支付宝交易凭证号: " + params.get("trade_no"));System.out.println("商户订单号: " + params.get("out_trade_no"));System.out.println("交易金额: " + params.get("total_amount"));System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));System.out.println("买家付款时间: " + params.get("gmt_payment"));System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));// 查询订单/*** 使用 QueryWrapper 查询订单，根据订单号（outTradeNo）从数据库中查找订单。* 如果订单存在，更新订单信息，包括支付宝交易号（alipayNo）、支付时间（PayTime）和订单状态（State），将订单状态更新为 已支付。* 最后返回 success，告诉支付宝服务器回调处理成功。*/QueryWrapper<Orders> queryWrapper = new QueryWrapper<>();queryWrapper.eq("order_id", outTradeNo);Orders orders = ordersMapper.selectOne(queryWrapper);if (orders != null) {orders.setAlipayNo(alipayTradeNo);orders.setPayTime(new Date());orders.setState("已支付");ordersMapper.updateById(orders);}}}return "success";
}

完整的Controller层代码

package com.example.alipay.controller;import cn.hutool.json.JSONObject;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.response.AlipayTradePagePayResponse;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.example.alipay.common.AlipayConfig;
import com.example.alipay.controller.AliPay;
import com.example.alipay.dao.OrdersMapper;
import com.example.alipay.entity.Orders;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;// xjlugv6874@sandbox.com
// 9428521.24 - 30 = 9428491.24 + 30 = 9428521.24
@RestController
@RequestMapping("/alipay")
public class AliPayController {private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";private static final String FORMAT = "JSON";private static final String CHARSET = "UTF-8";//签名方式private static final String SIGN_TYPE = "RSA2";@Resourceprivate AlipayConfig aliPayConfig;@Resourceprivate OrdersMapper ordersMapper;@GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxxpublic void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {//创建交易单// 1. 创建Client，通用SDK提供的Client，负责调用支付宝的APIAlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);// 2. 创建 Request并设置Request参数AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类request.setNotifyUrl(aliPayConfig.getNotifyUrl());JSONObject bizContent = new JSONObject();bizContent.set("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号bizContent.set("total_amount", aliPay.getTotalAmount()); // 订单的总金额bizContent.set("subject", aliPay.getSubject());   // 支付的名称bizContent.set("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置request.setBizContent(bizContent.toString());// 执行请求，拿到响应的结果，返回给浏览器String form = "";try {AlipayTradePagePayResponse response = alipayClient.pageExecute(request);System.out.println(response); // 在控制台输出响应结果form = response.getBody(); // 调用SDK生成表单} catch (AlipayApiException e) {e.printStackTrace();}httpResponse.setContentType("text/html;charset=" + CHARSET);httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面httpResponse.getWriter().flush();httpResponse.getWriter().close();}@PostMapping("/notify")  // 注意这里必须是POST接口public String payNotify(HttpServletRequest request) throws Exception {if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {System.out.println("=========支付宝异步回调========");Map<String, String> params = new HashMap<>();Map<String, String[]> requestParams = request.getParameterMap();for (String name : requestParams.keySet()) {params.put(name, request.getParameter(name));// System.out.println(name + " = " + request.getParameter(name));}String outTradeNo = params.get("out_trade_no");String gmtPayment = params.get("gmt_payment");String alipayTradeNo = params.get("trade_no");String sign = params.get("sign");String content = AlipaySignature.getSignCheckContentV1(params);boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名// 支付宝验签if (checkSignature) {// 验签通过System.out.println("交易名称: " + params.get("subject"));System.out.println("交易状态: " + params.get("trade_status"));System.out.println("支付宝交易凭证号: " + params.get("trade_no"));System.out.println("商户订单号: " + params.get("out_trade_no"));System.out.println("交易金额: " + params.get("total_amount"));System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));System.out.println("买家付款时间: " + params.get("gmt_payment"));System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));// 查询订单/*** 使用 QueryWrapper 查询订单，根据订单号（outTradeNo）从数据库中查找订单。* 如果订单存在，更新订单信息，包括支付宝交易号（alipayNo）、支付时间（PayTime）和订单状态（State），将订单状态更新为 已支付。* 最后返回 success，告诉支付宝服务器回调处理成功。*/QueryWrapper<Orders> queryWrapper = new QueryWrapper<>();queryWrapper.eq("order_id", outTradeNo);Orders orders = ordersMapper.selectOne(queryWrapper);if (orders != null) {orders.setAlipayNo(alipayTradeNo);orders.setPayTime(new Date());orders.setState("已支付");ordersMapper.updateById(orders);}}}return "success";}
}

注意网关地址，需要修改 GATEWAY_URL 为对应沙箱的支付宝网关地址