添加酒店信息的基本操作

src/main/java/cn/mafangui/hotel/service/HotelService.java

@@ -0,0 +1,16 @@
+package cn.mafangui.hotel.service;
+
+import cn.mafangui.hotel.entity.Hotel;
+
+import java.util.List;
+
+public interface HotelService {
+
+    int addHotel(Hotel hotel);
+    int deleteHotel(int hotelId);
+    int updateHotel(Hotel hotel);
+    Hotel selectHotelByName(String hotelName);
+    Hotel selectHotelById(int hotelId);
+    List<Hotel> findAllHotel();
+
+}

src/main/java/cn/mafangui/hotel/service/impl/HotelServiceImpl.java

@@ -0,0 +1,45 @@
+package cn.mafangui.hotel.service.impl;
+
+import cn.mafangui.hotel.entity.Hotel;
+import cn.mafangui.hotel.mapper.HotelMapper;
+import cn.mafangui.hotel.service.HotelService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class HotelServiceImpl implements HotelService {
+    @Autowired
+    private HotelMapper hotelMapper;
+
+    @Override
+    public int addHotel(Hotel hotel) {
+        return hotelMapper.insertSelective(hotel);
+    }
+
+    @Override
+    public int deleteHotel(int hotelId) {
+        return hotelMapper.deleteByPrimaryKey(hotelId);
+    }
+
+    @Override
+    public int updateHotel(Hotel hotel) {
+        return hotelMapper.updateByPrimaryKeySelective(hotel);
+    }
+
+    @Override
+    public Hotel selectHotelByName(String hotelName) {
+        return hotelMapper.selectByName(hotelName);
+    }
+
+    @Override
+    public Hotel selectHotelById(int hotelId) {
+        return hotelMapper.selectByPrimaryKey(hotelId);
+    }
+
+    @Override
+    public List<Hotel> findAllHotel() {
+        return hotelMapper.selectAll();
+    }
+}