[feat][M]:新增用户的基本服务类函数

java/src/main/java/com/hzu/bookingsystem/bean/User.java

@@ -1,17 +1,21 @@
 package com.hzu.bookingsystem.bean;
 
+import lombok.AllArgsConstructor;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 import javax.persistence.*;
 
 
 @Data
+@NoArgsConstructor
+@AllArgsConstructor
 @Entity
 @Table(name = "tb_user")
 public class User {
 
     @Id
-    @GeneratedValue(strategy= GenerationType.IDENTITY)
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     // 用户ID
     private Integer uId;
 

java/src/main/java/com/hzu/bookingsystem/repository/UserRepository.java

@@ -5,5 +5,7 @@ import com.hzu.bookingsystem.bean.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface UserRepository extends JpaRepository<User,String> {
+    User findByUId(Integer uId);
 
+    void deleteByUId(Integer uId);
 }

java/src/main/java/com/hzu/bookingsystem/service/UserService.java

@@ -7,8 +7,34 @@ import java.util.List;
 
 public interface UserService {
 
-    // 创建用户
+    /**
+     * 创建用户
+     * @param user
+     * @return
+     */
     User create(User user);
 
+    // 查找所有用户
     List<User> findAll();
+
+    /**
+     * 通过u_id查找用户
+     * @param uId
+     * @return
+     */
+    User findById(Integer uId);
+
+    /**
+     * 修改用户
+     * @param user
+     * @return
+     */
+    User save(User user);
+
+    /**
+     * 通过u_id删除用户
+     * @param uId
+     * @return
+     */
+    void deleteById(Integer uId);
 }

java/src/main/java/com/hzu/bookingsystem/service/impl/UserServiceImpl.java

@@ -6,6 +6,7 @@ import com.hzu.bookingsystem.service.UserService;
 import org.springframework.stereotype.Service;
 
 import javax.annotation.Resource;
+import javax.transaction.Transactional;
 import java.util.List;
 
 @Service
@@ -15,6 +16,7 @@ public class UserServiceImpl implements UserService {
 
     @Override
     public User create(User user) {
+        user.setUId(null);
         return userRepository.save(user);
     }
 
@@ -22,4 +24,20 @@ public class UserServiceImpl implements UserService {
     public List<User> findAll() {
         return userRepository.findAll();
     }
+
+    @Override
+    public User findById(Integer uId) {
+        return userRepository.findByUId(uId);
+    }
+
+    @Override
+    public User save(User user) {
+        return userRepository.save(user);
+    }
+
+    @Override
+    @Transactional
+    public void deleteById(Integer uId) {
+        userRepository.deleteByUId(uId);
+    }
 }