<!--引入支付寶支付 -->
        <dependency>
            <groupId>com.alipay.sdk</groupId>
            <artifactId>alipay-easysdk</artifactId>
            <version>2.2.1</version>
        </dependency>
 
        <dependency>
            <groupId>com.alipay.sdk</groupId>
            <artifactId>alipay-sdk-java</artifactId>
            <version>4.22.113.ALL</version>
        </dependency>

#支付寶
alipay:
  appId: 
  appPrivateKey: 
  alipayPublicKey: 
  notifyUrl: 
  returnUrl: 

 
import com.alipay.api.DefaultAlipayClient;
 
/**
 * @method: $
 * @description: 
 * @date: $
 * @author: myth
 * @return $
 */
public class AliPayUtils {
 
    public static AlipayClient alipayClient;
 
    static {
        alipayClient =
                new DefaultAlipayClient(
                        "https://openapi-sandbox.dl.alipaydev.com/gateway.do",
                        "123123123",
                        "MIIEvgIBADANBgkq.......",
                        "json",
                        //UTF-8編碼格式
                        "UTF-8",
                        "MIIBIjANBgkqhk......",
                        //RSA非對稱加密
                        "RSA2");
    }
 
    public static AlipayClient getAlipayClient() {
        return alipayClient;
    }
}

package com.gyp.studytour.common;
 
import com.gyp.studytour.common.JwtInterceptor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
 
@Configuration
public class InterceptorConfig extends WebMvcConfigurationSupport {
 
    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(jwtInterceptor())
                .addPathPatterns("/**").excludePathPatterns("/alipay/**");
        super.addInterceptors(registry);
    }
 
    @Bean
    public JwtInterceptor jwtInterceptor() {
        return new JwtInterceptor();
    }
 
}

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.time.LocalDateTime;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
/**
 * @Author myth
 * @Date Created in  2024/4/23 15:23
 * @DESCRIPTION:
 * @Version V1.0
 */
@RestController
@RequestMapping("alipay")
@Transactional(rollbackFor = Exception.class)
public class AliPayController {
 
   @Resource
   AliPayConfig aliPayConfig;
 
   @Resource
   AddressBookMapper addressBookMapper;
 
   @Autowired
   OrderServiceImpl orderServiceImpl;
 
   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";
   private static final String SIGN_TYPE ="RSA2";
 
   @GetMapping("/pay") // 前端路徑參數(shù)格式?subject=xxx&traceNo=xxx&totalAmount=xxx
   public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws Exception {
      AlipayClient alipayClient = new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(),
              aliPayConfig.getAppPrivateKey(), FORMAT, CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
      AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
      request.setNotifyUrl(aliPayConfig.getNotifyUrl());
      request.setReturnUrl(aliPayConfig.getReturnUrl());
      request.setBizContent("{\"out_trade_no\":\"" + aliPay.getTraceNo() + "\","
              + "\"total_amount\":\"" + aliPay.getTotalAmount() + "\","
              + "\"subject\":\"" + aliPay.getSubject() + "\","
              + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
      String form = "";
      try {
         // 調(diào)用SDK生成表單
         form = alipayClient.pageExecute(request).getBody();
      } catch (AlipayApiException e) {
         e.printStackTrace();
      }
      httpResponse.setContentType("text/html;charset=" + CHARSET);
      // 直接將完整的表單html輸出到頁面
      httpResponse.getWriter().write(form);
      httpResponse.getWriter().flush();
      httpResponse.getWriter().close();
   }
 
   @PostMapping("/notify")  // 注意這里必須是POST接口
   public String payNotify(HttpServletRequest request) throws Exception {
      if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
         
 
         Map<String, String> params = new HashMap<>();
         Map<String, String[]> requestParams = request.getParameterMap();
         for (String name : requestParams.keySet()) {
            params.put(name, request.getParameter(name));
         }
 
         String tradeNo = params.get("out_trade_no");
         String gmtPayment = params.get("gmt_payment");
         String alipayTradeNo = params.get("trade_no");
         // 支付寶驗簽
         if (Factory.Payment.Common().verifyNotify(params)) {
            // 驗簽通過
            System.out.println("交易名稱: " + params.get("subject"));
            System.out.println("交易狀態(tài): " + params.get("trade_status"));
            System.out.println("支付寶交易憑證號: " + params.get("trade_no"));
            System.out.println("商戶訂單號: " + params.get("out_trade_no"));
            System.out.println("交易金額: " + params.get("total_amount"));
            System.out.println("買家在支付寶唯一id: " + params.get("buyer_id"));
            System.out.println("買家付款時間: " + params.get("gmt_payment"));
            System.out.println("買家付款金額: " + params.get("buyer_pay_amount"));
 
            // 更新訂單已支付的邏輯代碼
           
         }
      }
      return "success";
   }
 
}

async function handleBuy(){ window.open('http://localhost:80/alipay/pay') }

package com.songqiao.waimai.alipay.payparameter;
 
import lombok.Data;
 
/**
 * @Author myth
 * @Date Created in  2024/4/23 15:26
 * @DESCRIPTION: alipay接口參數(shù)
 * @Version V1.0
 */
@Data
public class AliPay {
   //訂單編號
   private String traceNo;
   //商品金額
   private double totalAmount;
   //商品名稱
   private String subject;
   //訂單追蹤號，商戶自己生成，可已不使用
   private String alipayTraceNo;
}

async goToPaySuccess(){
    //在這里我選擇了window.open(url,'_self')形式，也就是不跳轉(zhuǎn)新的頁面，在本頁面直接跳轉(zhuǎn)
    window.open("http://127.0.0.1:8080/alipay/pay?subject="+"魚頭，"+this.note+"&traceNo="+Math.floor(Math.random() * 900000) + 100000+"&totalAmount="+this.goodsPrice,'_self')
 },