package com.fuzamei.service.serviceImpl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.fuzamei.entity.Orders; import com.fuzamei.mapperInterface.OrderMapper; import com.fuzamei.service.OrderService; @Service public class OrderServiceImpl implements OrderService { @Autowired private OrderMapper orderMapper; @Override public void checkIfHasTheSameId(int orderId) { int count = orderMapper.queryOrderById(orderId); if(count!=0) throw new RuntimeException("订单号已存在"); } @Override public Orders queryFullOrderByOrderId(int orderId) { Orders order = orderMapper.queryFullOrderByOrderId(orderId); if(null==order){ throw new RuntimeException("该订单不存在"); } return order; } }