URL：http：//localhost：8098/Users/
身体

{
    "firstName": "sakti",
    "lastName": "behera",
    "email": "sakti.behera@gmail.com",
    "departmentId": "1"
}

控制器

@RestController
@RequestMapping("/Users")
public class UserController {
    
    @Autowired
    private UserService userService;
    
    @PostMapping("/")
    public User saveUser(@RequestBody User user) {
        return userService.saveUser(user);
        
    }
    @GetMapping("/{id}")
    public ResponseTemplateVO getUserWithDepartment(@PathVariable("id")  Long userId ) {
        return userService.getUserWithDepartment(userId);
        
    }

}

实体类

@Entity
@AllArgsConstructor
@NoArgsConstructor
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long userId;
    private String firstName;
    private String lastName;
    private String email;
    private Long departmentId;
    
    public Long getUserId() {
        return userId;
    }
    public void setUserId(Long userId) {
        this.userId = userId;
    }
    public String getFirstName() {
        return firstName;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public Long getDepartmentId() {
        return departmentId;
    }
    public void setDepartmentId(Long departmentId) {
        this.departmentId = departmentId;
    }
    

}

售后服务：

enter code here
    @Service
    public class UserService {
    @Autowired
    private UserRepository userRepository;

    @Autowired
    private RestTemplate restTemplate;

    public User saveUser(User user) {
        return userRepository.save(user);
    }

    public ResponseTemplateVO getUserWithDepartment(Long userId) {
        ResponseTemplateVO vo = new ResponseTemplateVO();
        User user = userRepository.findByUserId(userId);
        Department department =
 restTemplate.getForObject("http://localhost:8097/departments/"+user.getD epartmentId(),Department.class);
        vo.setUser(user);
        vo.setDepartment(department);
        return vo;
    }

我点击postmethod，但得到404没有找到我已经添加了我的服务，实体，和控制器也.因为你给的建议添加（/保存），我尝试仍然它是不工作后，打了几次，我看到我的Eclipse控制台的东西，post方法是不允许的.所以它有什么做的代码或 Postman ？