完成RoomTypeService类编写，通过单元测试

src/main/java/cn/mafangui/hotel/entity/RoomType.java

@@ -3,7 +3,7 @@ package cn.mafangui.hotel.entity;
 import java.util.Date;
 
 public class RoomType {
-    private Long typeId;
+    private Integer typeId;
 
     private String roomType;
 
@@ -25,11 +25,11 @@ public class RoomType {
 
     private Date updateTime;
 
-    public Long getTypeId() {
+    public Integer getTypeId() {
         return typeId;
     }
 
-    public void setTypeId(Long typeId) {
+    public void setTypeId(Integer typeId) {
         this.typeId = typeId;
     }
 
@@ -112,4 +112,21 @@ public class RoomType {
     public void setUpdateTime(Date updateTime) {
         this.updateTime = updateTime;
     }
+
+    @Override
+    public String toString() {
+        return "RoomType{" +
+                "typeId=" + typeId +
+                ", roomType='" + roomType + '\'' +
+                ", remark='" + remark + '\'' +
+                ", price=" + price +
+                ", discount=" + discount +
+                ", area=" + area +
+                ", bedNum=" + bedNum +
+                ", bedSize='" + bedSize + '\'' +
+                ", window=" + window +
+                ", createTime=" + createTime +
+                ", updateTime=" + updateTime +
+                '}';
+    }
 }

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

@@ -1,17 +1,25 @@
 package cn.mafangui.hotel.mapper;
 
 import cn.mafangui.hotel.entity.RoomType;
+import org.springframework.stereotype.Component;
 
+import java.util.List;
+
+@Component
 public interface RoomTypeMapper {
-    int deleteByPrimaryKey(Long typeId);
+    int deleteByPrimaryKey(Integer typeId);
 
     int insert(RoomType record);
 
     int insertSelective(RoomType record);
 
-    RoomType selectByPrimaryKey(Long typeId);
+    RoomType selectByPrimaryKey(Integer typeId);
 
     int updateByPrimaryKeySelective(RoomType record);
 
     int updateByPrimaryKey(RoomType record);
+
+    List<RoomType> selectAll();
+
+    RoomType selectByRoomType(String roomType);
 }

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

@@ -1,20 +1,20 @@
 package cn.mafangui.hotel.service;
 
 import cn.mafangui.hotel.entity.RoomType;
+import org.springframework.stereotype.Service;
 
 import java.util.List;
 
+@Service
 public interface RoomTypeService {
 
-    int addRoomType(RoomType roomType);
+    int insert(RoomType roomType);
 
-    int delRoomType(RoomType roomType);
+    int delete(int typeId);
 
-    int delById(int typeId);
+    int update(RoomType roomType);
 
-    int updateRoomType(RoomType roomType);
-
-    RoomType selectByName(RoomType roomType);
+    RoomType selectByName(String roomType);
 
     RoomType selectById(int typeId);
 

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

@@ -0,0 +1,46 @@
+package cn.mafangui.hotel.service.impl;
+
+
+import cn.mafangui.hotel.entity.RoomType;
+import cn.mafangui.hotel.mapper.RoomTypeMapper;
+import cn.mafangui.hotel.service.RoomTypeService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class RoomTypeServiceImpl implements RoomTypeService {
+    @Autowired
+    private RoomTypeMapper roomTypeMapper;
+
+    @Override
+    public int insert(RoomType roomType) {
+        return roomTypeMapper.insertSelective(roomType);
+    }
+
+    @Override
+    public int delete(int typeId) {
+        return roomTypeMapper.deleteByPrimaryKey(typeId);
+    }
+
+    @Override
+    public int update(RoomType roomType) {
+        return roomTypeMapper.updateByPrimaryKeySelective(roomType);
+    }
+
+    @Override
+    public RoomType selectByName(String roomType) {
+        return roomTypeMapper.selectByRoomType(roomType);
+    }
+
+    @Override
+    public RoomType selectById(int typeId) {
+        return roomTypeMapper.selectByPrimaryKey(typeId);
+    }
+
+    @Override
+    public List<RoomType> findAllType() {
+        return roomTypeMapper.selectAll();
+    }
+}