【不靠谱程序员】接收到回调通知的异步处理

public void payNotify(Order order) {
    // ① 修改付款单状态
    orderRepository.updatePayResult(order.getId(), "PAY_SUCCESS");
    
    // ② 将付款结果调用商户系统API，通知商户
    Merchant merchant = merchantRepository.getById(order.getMerId());
    String reqMsg = encrypt("orderNo="+order.getOrderId()+"&state=PAY_SUCCESS");
    HttpClient.sendPost(merchant.getNotifyUrl(), reqMsg);
}

public void payNotify(Order order) {
    // ① 修改付款单状态
    new Thread(()->{
        orderRepository.updatePayResult(order.getId(), "PAY_SUCCESS");
    }).start();
    
    // ② 将付款结果调用商户系统API，通知商户
    new Thread(()->{
        Merchant merchant = merchantRepository.getById(order.getMerId());
        String reqMsg = encrypt("orderNo="+order.getOrderId()+"&state=PAY_SUCCESS");
        HttpClient.sendPost(merchant.getNotifyUrl(), reqMsg);
    }).start();
}