I have two entities. Address and Employee. When I try to persist using CommandLineRunner everything is working as expected but when I try the same from REST endpoint, the data is saved in DB but I am getting the following error
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Infinite recursion (StackOverflowError); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError)address"]
CommandLineRunner (This works fine)
@SpringBootApplication
@RequiredArgsConstructor
public class OneToOneApplication implements CommandLineRunner {
private final EmployeeRepository employeeRepository;
public static void main(String[] args) {
SpringApplication.run(OneToOneApplication.class, args);
}
@Override
@Transactional
public void run(String... args) throws Exception {
Employee employee = new Employee();
employee.setAge(10);
employee.setName("SomeName");
Address address = new Address();
address.setEmployee(employee);
address.setStreet("SomeStreet");
employee.setAddress(address);
employeeRepository.save(employee);
}
}
This is not working. POST http://localhost:9191/save
{
"name": "somename",
"age": 15,
"address": {
"street": "somestreet"
}
}
Address.java
@Data
@Entity
@NoArgsConstructor
@AllArgsConstructor
@Table(name = "Address")
public class Address {
@Id
@Column(name = "employee_id")
private Long id;
private String street;
@MapsId
@OneToOne
@JoinColumn (name = "employee_id")
private Employee employee;
}
Employee.java
@Data
@Entity
@NoArgsConstructor
@AllArgsConstructor
@Table(name = "Employee")
public class Employee {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name="id")
private Long id;
private String name;
private int age;
@OneToOne(mappedBy = "employee", cascade = CascadeType.ALL)
private Address address;
}
EmployeeRepository.java
@Repository
public interface EmployeeRepository extends JpaRepository<Employee, Long> {
}
EmployeeService.java
@Service
public class EmployeeService {
@Autowired
EmployeeRepository employeeRepository;
public Employee saveEmployee(Employee employee) {
Address address = employee.getAddress();
address.setEmployee(employee);
return employeeRepository.save(employee);
}
}
I guess I am doing some mistake in EmployeeService.java.
- How to make it work?
- Do I really need AddressRepository?
