[feat][M]:新增用户服务接口及其服务类，并为其添加持久层JPA接口

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

@@ -0,0 +1,9 @@
+package com.hzu.bookingsystem.repository;
+
+
+import com.hzu.bookingsystem.bean.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface UserRepository extends JpaRepository<User,String> {
+
+}

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

@@ -0,0 +1,14 @@
+package com.hzu.bookingsystem.service;
+
+
+import com.hzu.bookingsystem.bean.User;
+
+import java.util.List;
+
+public interface UserService {
+
+    // 创建用户
+    User create(User user);
+
+    List<User> findAll();
+}

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

@@ -0,0 +1,25 @@
+package com.hzu.bookingsystem.service.impl;
+
+import com.hzu.bookingsystem.bean.User;
+import com.hzu.bookingsystem.repository.UserRepository;
+import com.hzu.bookingsystem.service.UserService;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+@Service
+public class UserServiceImpl implements UserService {
+    @Resource
+    private UserRepository userRepository;
+
+    @Override
+    public User create(User user) {
+        return userRepository.save(user);
+    }
+
+    @Override
+    public List<User> findAll() {
+        return userRepository.findAll();
+    }
+}

java/src/test/java/com/hzu/bookingsystem/BookingsystemApplicationTests.java

@@ -1,8 +1,13 @@
 package com.hzu.bookingsystem;
 
+import com.hzu.bookingsystem.bean.User;
+import com.hzu.bookingsystem.service.UserService;
 import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 
+import javax.annotation.Resource;
+
 @SpringBootTest
 class BookingsystemApplicationTests {
 
@@ -10,4 +15,16 @@ class BookingsystemApplicationTests {
     void contextLoads() {
     }
 
+    @Autowired
+    private UserService userService;
+    @Test
+    public void test(){
+        User user = new User();
+        user.setUsername("123456");
+        user.setNickname("吴志岳");
+        user.setEmail("274129947@qq.com");
+        user.setPassword("123456");
+        user.setOffice("5#101");
+        userService.create(user);
+    }
 }