Initial commit

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

@@ -0,0 +1,13 @@
+package cn.mafangui.hotel.service;
+
+
+import cn.mafangui.hotel.entity.User;
+
+public interface UserService {
+
+    User selectById(int id);
+
+    int register(User user);
+
+    User login(String userName, String password);
+}

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

@@ -0,0 +1,34 @@
+package cn.mafangui.hotel.service.impl;
+
+import cn.mafangui.hotel.entity.User;
+import cn.mafangui.hotel.mapper.UserMapper;
+import cn.mafangui.hotel.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserServiceImpl implements UserService {
+
+    @Autowired
+    private UserMapper userMapper;
+
+    @Override
+    public User selectById(int id) {
+        return userMapper.selectByPrimaryKey(id);
+    }
+
+    @Override
+    public int register(User user) {
+        return userMapper.insert(user);
+    }
+
+    @Override
+    public User login(String userName, String password) {
+        User user = new User();
+        user.setUserName(userName);
+        user.setPassword(password);
+        return userMapper.selectByUserNameAndPassword(user);
+    }
+
+
+}