Java Springboot整合支付宝接口的方法是什么

  com.alipay.sdk alipay-sdk-java 4.22.110.ALL    cn.hutool hutool-all 5.8.11 

## 支付宝配置 alipay: appId: 2021000122615995 appPrivateKey: 这是在第一步中的应用私钥，在查看里面，特别长的一串 alipayPublicKey: 这是第一步中的支付宝公钥 notifyUrl: 这是第二步中运行start.bat后得到的网址 + /alipay/notify

@Data public class AliPay { private String traceNo; // 订单编号 private double totalAmount; // 总金额 private String subject; // 商品名称 private String alipayTraceNo; }

@Data @Component @ConfigurationProperties(prefix = "alipay") public class AlipayConfig { // 对应配置文件中的内容 private String appId; private String appPrivateKey; private String alipayPublicKey; private String notifyUrl; }

@RestController @RequestMapping("/alipay") public class AliPayController { private static final String GATEWAY_URL = "https://openapi.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"; @Resource private AlipayConfig aliPayConfig; @GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception { // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API AlipayClient 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 { form = alipayClient.pageExecute(request).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 params = new HashMap<>(); Map 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")); } } return "success"; } }