优化支付模块的代码，增加微信扫码支付的功能

seer-common/common-web/src/main/java/com/seer/teach/common/utils/IpUtils.java

@@ -0,0 +1,32 @@
+package com.seer.teach.common.utils;
+
+import cn.hutool.extra.servlet.JakartaServletUtil;
+import jakarta.servlet.http.HttpServletRequest;
+import org.springframework.web.context.request.RequestAttributes;
+import org.springframework.web.context.request.RequestContextHolder;
+import org.springframework.web.context.request.ServletRequestAttributes;
+
+public class IpUtils {
+
+    /**
+     * 获取当前请求
+     *
+     * @return
+     */
+    public static HttpServletRequest getRequest() {
+        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
+        if (!(requestAttributes instanceof ServletRequestAttributes)) {
+            return null;
+        }
+        return ((ServletRequestAttributes) requestAttributes).getRequest();
+    }
+
+    /**
+     * 获取当前请求的IP
+     *
+     * @return
+     */
+    public static String getIp() {
+        return JakartaServletUtil.getClientIP(getRequest());
+    }
+}

seer-pay/seer-pay-service-app/src/main/java/com/seer/teach/pay/app/client/dto/PayRefundReqDTO.java

@@ -49,4 +49,9 @@ public class PayRefundReqDTO {
      * 渠道编码
      */
     private String channelCode;
+
+    /**
+     * 回调地址
+     */
+    private String notifyUrl;
 }

seer-pay/seer-pay-service-app/src/main/java/com/seer/teach/pay/app/client/wechat/AbstractWxPayClient.java

@@ -150,7 +150,7 @@ public abstract class AbstractWxPayClient extends AbstractPayClient {
                 .setAmount(new WxPayRefundV3Request.Amount().setRefund(reqDTO.getRefundPrice())
                         .setTotal(reqDTO.getPayPrice()).setCurrency("CNY"))
                 .setReason(reqDTO.getReason())
-                .setNotifyUrl(this.refundNotifyUrl);
+                .setNotifyUrl(reqDTO.getNotifyUrl());
         try {
             WxPayRefundV3Result response = client.refundV3(request);
 

seer-pay/seer-pay-service-app/src/main/java/com/seer/teach/pay/app/pay/service/impl/AppPayOrderServiceImpl.java

@@ -1,5 +1,6 @@
 package com.seer.teach.pay.app.pay.service.impl;
 
+import cn.hutool.extra.servlet.ServletUtil;
 import com.alibaba.nacos.shaded.com.google.common.collect.Maps;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.seer.teach.common.constants.CommonConstant;
@@ -8,6 +9,7 @@ import com.seer.teach.common.enums.pay.PayChannelEnum;
 import com.seer.teach.common.enums.pay.PayOrderSourceEnum;
 import com.seer.teach.common.enums.pay.PayStatusEnum;
 import com.seer.teach.common.utils.AssertUtils;
+import com.seer.teach.common.utils.IpUtils;
 import com.seer.teach.pay.app.client.PayClient;
 import com.seer.teach.pay.app.client.PayClientFactory;
 import com.seer.teach.pay.app.client.convert.PayClientConvert;
@@ -83,6 +85,7 @@ public class AppPayOrderServiceImpl implements IAppPayOrderService {
         }
         payOrderReqDTO.setNotifyUrl(getNotifyUrl(payChannel));
         payOrderReqDTO.setReturnUrl(orderPayReq.getReturnUrl());
+        payOrderReqDTO.setUserIp(IpUtils.getIp());
         // 6，执行支付
         PayOrderRespDTO response = payClient.payOrder(payOrderReqDTO);
         response.setChannelId(payChannel.getId());

seer-pay/seer-pay-service-app/src/main/java/com/seer/teach/pay/app/refund/service/impl/AppRefundOrderServiceImpl.java

@@ -26,6 +26,7 @@ import com.seer.teach.pay.service.IPayOrderService;
 import com.seer.teach.pay.service.IRefundOrderService;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -50,6 +51,10 @@ public class AppRefundOrderServiceImpl implements IAppRefundOrderService {
 
     private final OrderProcessStrategyFactory orderProcessStrategyFactory;
 
+
+    @Value("${server.servlet.context-path:}")
+    private String contextPath;
+
     /**
      * 执行退款订单
      *
@@ -112,6 +117,8 @@ public class AppRefundOrderServiceImpl implements IAppRefundOrderService {
                     .payPrice(refundRequest.getTotalAmount().intValue())
                     .refundPrice(refundRequest.getRefundAmount().intValue())
                     .userId(refundRequest.getUserId())
+                    .channelCode(channelCode)
+                    .notifyUrl(getRefundNotifyUrl(payChannel))
                     .build();
             log.info("构建退款请求参数完成，请求参数：{}", payRefundReqDTO);
 
@@ -135,6 +142,10 @@ public class AppRefundOrderServiceImpl implements IAppRefundOrderService {
         }
     }
 
+    private String getRefundNotifyUrl(PayChannelEntity payChannel) {
+        return payChannel.getNotifyDomain() + contextPath + "/app/callback/refund/" + payChannel.getChannelCode();
+    }
+
     /**
      * 查询退款状态
      *