com.wechat.pay.java.core.notification.RequestParam requestParam = new com.wechat.pay.java.core.notification.RequestParam.Builder()
.serialNumber(serialNo)
.nonce(nonceStr)
.signature(signature)
.timestamp(timestamp)
.body(body)
.build();
// 如果已经初始化了 RSAAutoCertificateConfig，可以直接使用 config
// 初始化 NotificationParser
NotificationParser parser = new NotificationParser(paySDK.getConfig());
// 验签、解密并转换成 Transaction
Refund refund = parser.parse(requestParam, Refund.class);
//记录日志信息
Status state = refund.getStatus();
String orderID = refund.getOutTradeNo();
String backID = refund.getOutRefundNo();
System.out.println("订单ID：" + orderID);
System.out.println("退款ID：" + backID);
if (state == Status.PROCESSING) {
//TODO------
//根据自己的需求处理相应的业务逻辑,异步
//通知微信回调成功
response.getWriter().write("<xml><return_code><![CDATA[SUCCESS]]></return_code></xml>");
System.out.println("退款处理中");
} else if (state == Status.SUCCESS) {
//TODO------
//根据自己的需求处理相应的业务逻辑,异步
//通知微信回调成功
response.getWriter().write("<xml><return_code><![CDATA[SUCCESS]]></return_code></xml>");
System.out.println("退款完成");
} else {
System.out.println("微信回调失败,JsapiPayController.Refund：" + state.toString());
//通知微信回调失败
response.getWriter().write("<xml><return_code><![CDATA[FAIL]]></return_code></xml>");
}
} catch (Exception e) {
e.printStackTrace();
} finally {
is.close();
}
}
退款查询
除了退款回调的异步通知，我们还需要通过定时任务主动去查询退款信息来保证业务订单退款状态的正确
@PostMapping("/back_check")
public Object back_check(@RequestBody Map<String, Object> params) throws Exception {
String backID = String.valueOf(params.get("backID"));
Refund refund = paySDK.getRefundOrderInfo(backID);
if (refund.getStatus() == Status.SUCCESS) {
return Result.okResult().add("obj", refund);
}if (refund.getStatus() == Status.PROCESSING) {
return Result.okResult().setCode(2).setMsg("退款处理中").add("obj", refund);
} else {
return Result.errorResult().add("obj", refund);
}
}
//获取订单退款结果信息
public Refund getRefundOrderInfo(String backID){
initBackConfig();
QueryByOutRefundNoRequest request = new QueryByOutRefundNoRequest();
request.setOutRefundNo(backID);
return backService.queryByOutRefundNo(request);
}