修改

src/main/java/com/llisoft/pay/service/OrderService.java

@@ -46,7 +46,8 @@ public class OrderService {
 		// 验证appKey合法性
 		App app = appService.get(appKey);
 		if (Objects.isNull(app)) {
-			throw new Exception("appKey不存在: " + appKey);
+			logger.error("appKey不存在: {}", appKey);
+			return null;
 		}
 		// 生成订单号, 当前时间+5位随机数
 		String orderNum = CodeUtil.time();
@@ -75,7 +76,8 @@ public class OrderService {
 	public String pay(String orderNum, byte payType, boolean isMobile) throws Exception{
 		Order order = orderDao.selectByOrderNum(orderNum);
 		if(order.getOrderStatus() == STATUS_PAYED){
-			throw new Exception("订单已经支付过: " + orderNum);
+			logger.error("订单已经支付过: {}", orderNum);
+			return null;
 		}
 		// 添加支付记录
 		String payNum = payService.add(order.getOrderId(), payType);