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退款

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This commit is contained in:
Jerry Yan 2024-12-18 10:33:48 +08:00
parent 5249cc2cc8
commit d646a8a542
1 changed files with 26 additions and 40 deletions
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66
src/main/java/com/ycwl/basic/service/impl/mobile/WxPayServiceImpl.java
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@ -15,6 +15,10 @@ import com.wechat.pay.java.service.partnerpayments.jsapi.model.Transaction;
import com.wechat.pay.java.service.payments.jsapi.JsapiService;
import com.wechat.pay.java.service.payments.jsapi.model.*;
import com.wechat.pay.java.service.payments.model.TransactionAmount;
import com.wechat.pay.java.service.refund.RefundService;
import com.wechat.pay.java.service.refund.model.AmountReq;
import com.wechat.pay.java.service.refund.model.CreateRequest;
import com.wechat.pay.java.service.refund.model.Refund;
import com.ycwl.basic.config.WechatConfig;
import com.ycwl.basic.constant.HttpConstant;
import com.ycwl.basic.constant.NumberConstant;
@ -58,6 +62,7 @@ import java.util.stream.Collectors;
import java.util.stream.Stream;
import static com.wechat.pay.java.core.http.Constant.*;
import static com.wechat.pay.java.service.refund.model.Status.SUCCESS;
import static com.ycwl.basic.constant.WeiXinConstant.*;
/**
@ -244,23 +249,28 @@ public class WxPayServiceImpl implements WxPayService {
public Boolean refundOrder(String orderId) throws Exception {
OrderRespVO orderDetail = orderService.detail(Long.parseLong(orderId)).getData();
BigDecimal payPrice = orderDetail.getPayPrice();
int priceInCents = payPrice.multiply(new BigDecimal(NumberConstant.HUNDRED)).intValue(); // 转换为分（int）
// 构建退款请求参数
Map<String, Object> data = new HashMap<>();
data.put(WECHATPAY_OUT_TRADE_NO, orderId);// 你要退款的订单号
data.put(WECHATPAY_OUT_REFUND_NO, SnowFlakeUtil.getId()); // 退款订单号（随机生成一个就行，保证不重复）
long priceInCents = payPrice.multiply(new BigDecimal(NumberConstant.HUNDRED)).longValue(); // 转换为分（int）
Map<String, Object> amount = new HashMap<>();
amount.put(WECHATPAY_REFUND, priceInCents); // 退款金额（以分为单位）
amount.put(WECHATPAY_TOTAL, priceInCents); // 订单总金额（以分为单位）
amount.put(WECHATPAY_CURRENCY, WECHATPAY_CURRENCY_CNY);
data.put(WECHATPAY_AMOUNT, amount);
// 回调通知 URL
data.put(WECHATPAY_NOTIFY_URL, wechatConfig.getRefundNotifyUrl());
Map<String, Object> stringObjectMap = this.processRefund(data);
if (stringObjectMap.get(WECHATPAY_STATUS).equals(WECHATPAY_SUCCESS)
|| stringObjectMap.get(WECHATPAY_STATUS).equals(WECHATPAY_PROCESSING)) {
Config config =
new RSAAutoCertificateConfig.Builder()
.merchantId(wechatConfig.getMchId())
// 使用 com.wechat.pay.java.core.util 中的函数从本地文件中加载商户私钥，商户私钥会用来生成请求的签名
.privateKey(wechatConfig.getKeyPath())
.merchantSerialNumber(wechatConfig.getMchSerialNo())
.apiV3Key(wechatConfig.getApiV3())
.build();
RefundService service = new RefundService.Builder().config(config).build();
CreateRequest request = new CreateRequest();
request.setNotifyUrl(wechatConfig.getRefundNotifyUrl());
AmountReq amountReq = new AmountReq();
amountReq.setTotal(priceInCents);
amountReq.setRefund(priceInCents);
amountReq.setCurrency(WECHATPAY_CURRENCY_CNY);
request.setAmount(amountReq);
request.setOutTradeNo(orderId);
request.setOutRefundNo(SnowFlakeUtil.getId());
Refund refundResult = service.create(request);
if (refundResult.getStatus() == SUCCESS) {
orderService.updateOrderState(Long.parseLong(orderId), OrderStateEnum.REFUNDED, null);
return true;
} else {
@ -353,30 +363,6 @@ public class WxPayServiceImpl implements WxPayService {
}
}
/**
* 发起退款
*
* @param data 退款请求参数
* @return
* @throws Exception
*/
public Map<String, Object> processRefund(Map<String, Object> data) throws Exception {
// 请求头（需要根据业务生成 Authorization Token）
Map<String, String> headers = new HashMap<>();
headers.put(HttpConstant.Authorization, getToken(String.valueOf(HttpMethod.POST), REFUNDS_URL, JSONObject.toJSONString(data)));
headers.put(HttpConstant.Accept, HttpConstant.Application_Json);
headers.put(HttpConstant.Content_Type, HttpConstant.Application_Json);
// 请求体数据
String jsonData = JSONObject.toJSONString(data);
// 执行 POST 请求
String response = httpService.doPost(REFUNDS_URL, jsonData, headers, String.valueOf(StandardCharsets.UTF_8));
// 将响应字符串解析为 Map
Map<String, Object> responseMap = JSONObject.parseObject(response, Map.class);
return responseMap;
}
/**
* 生成退款请求token