1.添加对房间信息的简单操作

2.新增时间格式化的工具类

src/main/java/cn/mafangui/hotel/mapper/RoomMapper.java

@@ -1,17 +1,25 @@
 package cn.mafangui.hotel.mapper;
 
 import cn.mafangui.hotel.entity.Room;
+import org.springframework.stereotype.Component;
 
+import java.util.List;
+
+@Component
 public interface RoomMapper {
-    int deleteByPrimaryKey(Integer roomId);
-
-    int insert(Room record);
 
     int insertSelective(Room record);
-
     Room selectByPrimaryKey(Integer roomId);
-
-    int updateByPrimaryKeySelective(Room record);
-
     int updateByPrimaryKey(Room record);
+
+    int insert(Room record);
+    int deleteByPrimaryKey(Integer roomId);
+    int deleteByRoomNumber(String roomNumber);
+    int updateByPrimaryKeySelective(Room record);
+    Room selectByRoomId(Integer roomId);
+    Room selectByRoomNumber(String roomNumber);
+    List<Room> selectAllRoom();
+    List<Room> selectByType(String typeName);
+    List<Room> selectByStatus(String status);
+
 }