Mixing
OneToMany mapping not working in the Controller crud Spring Boot Rest API
I don't know how to solve the 500 status response by the api. I am testing with Postman.
The request
{
"nome": "Ciencia da Computação",
"totalCreditos": 2333,
"professor": {
"id": 2,
"matricula": 0,
"nome": "José da silva"
}
}
How do I implement One to many relationship and expose the api the correct way for CRUD operation.
I'm getting a 500 error.
I don't know if I need to change the Controller functions
CursoController.java
@CrossOrigin(origins = "*")
@RestController
@RequestMapping({"/api/curso"})
public class CursoController {
@Autowired
private CursoService cursoService;
private ProfessorService professorService;
@PostMapping
public Curso create(@RequestBody Curso curso){
return cursoService.create(curso);
}
@GetMapping(path = {"/{id}"})
public Curso findOne(@PathVariable("id") int id){
return cursoService.findById(id);
}
@PutMapping
public Curso update(@RequestBody Curso Curso){
return cursoService.update(Curso);
}
@DeleteMapping(path ={"/{id}"})
public Curso delete(@PathVariable("id") int id) {
return cursoService.delete(id);
}
@GetMapping
public List findAll(){
return cursoService.findAll();
}
}
Curso.java
@Entity
@Table(name = "curso")
public class Curso implements Serializable {
@Id
@Column
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column
@GeneratedValue(strategy = GenerationType.AUTO)
private Long codigo;
@Column
private Long totalCreditos;
@Column
private String nome;
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
@JoinColumn(name = "professor_id", nullable = false)
@OnDelete(action = OnDeleteAction.CASCADE)
@JsonIgnore
@JsonManagedReference
private Professor professor;
}
java rest maven api spring-boot
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
add a comment |
I don't know how to solve the 500 status response by the api. I am testing with Postman.
The request
{
"nome": "Ciencia da Computação",
"totalCreditos": 2333,
"professor": {
"id": 2,
"matricula": 0,
"nome": "José da silva"
}
}
How do I implement One to many relationship and expose the api the correct way for CRUD operation.
I'm getting a 500 error.
I don't know if I need to change the Controller functions
CursoController.java
@CrossOrigin(origins = "*")
@RestController
@RequestMapping({"/api/curso"})
public class CursoController {
@Autowired
private CursoService cursoService;
private ProfessorService professorService;
@PostMapping
public Curso create(@RequestBody Curso curso){
return cursoService.create(curso);
}
@GetMapping(path = {"/{id}"})
public Curso findOne(@PathVariable("id") int id){
return cursoService.findById(id);
}
@PutMapping
public Curso update(@RequestBody Curso Curso){
return cursoService.update(Curso);
}
@DeleteMapping(path ={"/{id}"})
public Curso delete(@PathVariable("id") int id) {
return cursoService.delete(id);
}
@GetMapping
public List findAll(){
return cursoService.findAll();
}
}
Curso.java
@Entity
@Table(name = "curso")
public class Curso implements Serializable {
@Id
@Column
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column
@GeneratedValue(strategy = GenerationType.AUTO)
private Long codigo;
@Column
private Long totalCreditos;
@Column
private String nome;
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
@JoinColumn(name = "professor_id", nullable = false)
@OnDelete(action = OnDeleteAction.CASCADE)
@JsonIgnore
@JsonManagedReference
private Professor professor;
}
java rest maven api spring-boot
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
also can you share Professor entity class here?also share serviceimpl class as well.
– GauravRai1512
Nov 21 '18 at 1:41
can you share curso pojo class?
– GauravRai1512
Nov 21 '18 at 1:55
add a comment |
I don't know how to solve the 500 status response by the api. I am testing with Postman.
The request
{
"nome": "Ciencia da Computação",
"totalCreditos": 2333,
"professor": {
"id": 2,
"matricula": 0,
"nome": "José da silva"
}
}
How do I implement One to many relationship and expose the api the correct way for CRUD operation.
I'm getting a 500 error.
I don't know if I need to change the Controller functions
CursoController.java
@CrossOrigin(origins = "*")
@RestController
@RequestMapping({"/api/curso"})
public class CursoController {
@Autowired
private CursoService cursoService;
private ProfessorService professorService;
@PostMapping
public Curso create(@RequestBody Curso curso){
return cursoService.create(curso);
}
@GetMapping(path = {"/{id}"})
public Curso findOne(@PathVariable("id") int id){
return cursoService.findById(id);
}
@PutMapping
public Curso update(@RequestBody Curso Curso){
return cursoService.update(Curso);
}
@DeleteMapping(path ={"/{id}"})
public Curso delete(@PathVariable("id") int id) {
return cursoService.delete(id);
}
@GetMapping
public List findAll(){
return cursoService.findAll();
}
}
Curso.java
@Entity
@Table(name = "curso")
public class Curso implements Serializable {
@Id
@Column
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column
@GeneratedValue(strategy = GenerationType.AUTO)
private Long codigo;
@Column
private Long totalCreditos;
@Column
private String nome;
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
@JoinColumn(name = "professor_id", nullable = false)
@OnDelete(action = OnDeleteAction.CASCADE)
@JsonIgnore
@JsonManagedReference
private Professor professor;
}
java rest maven api spring-boot
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
I don't know how to solve the 500 status response by the api. I am testing with Postman.
The request
{
"nome": "Ciencia da Computação",
"totalCreditos": 2333,
"professor": {
"id": 2,
"matricula": 0,
"nome": "José da silva"
}
}
How do I implement One to many relationship and expose the api the correct way for CRUD operation.
I'm getting a 500 error.
I don't know if I need to change the Controller functions
CursoController.java
@CrossOrigin(origins = "*")
@RestController
@RequestMapping({"/api/curso"})
public class CursoController {
@Autowired
private CursoService cursoService;
private ProfessorService professorService;
@PostMapping
public Curso create(@RequestBody Curso curso){
return cursoService.create(curso);
}
@GetMapping(path = {"/{id}"})
public Curso findOne(@PathVariable("id") int id){
return cursoService.findById(id);
}
@PutMapping
public Curso update(@RequestBody Curso Curso){
return cursoService.update(Curso);
}
@DeleteMapping(path ={"/{id}"})
public Curso delete(@PathVariable("id") int id) {
return cursoService.delete(id);
}
@GetMapping
public List findAll(){
return cursoService.findAll();
}
}
Curso.java
@Entity
@Table(name = "curso")
public class Curso implements Serializable {
@Id
@Column
@GeneratedValue(strategy = GenerationType.IDENTITY)
private int id;
@Column
@GeneratedValue(strategy = GenerationType.AUTO)
private Long codigo;
@Column
private Long totalCreditos;
@Column
private String nome;
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
@JoinColumn(name = "professor_id", nullable = false)
@OnDelete(action = OnDeleteAction.CASCADE)
@JsonIgnore
@JsonManagedReference
private Professor professor;
}
java rest maven api spring-boot
java rest maven api spring-boot
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
asked Nov 21 '18 at 1:31
Rafael ÁquilaRafael Áquila
82
82
also can you share Professor entity class here?also share serviceimpl class as well.
– GauravRai1512
Nov 21 '18 at 1:41
can you share curso pojo class?
– GauravRai1512
Nov 21 '18 at 1:55
add a comment |
also can you share Professor entity class here?also share serviceimpl class as well.
– GauravRai1512
Nov 21 '18 at 1:41
can you share curso pojo class?
– GauravRai1512
Nov 21 '18 at 1:55
also can you share Professor entity class here?also share serviceimpl class as well.
– GauravRai1512
Nov 21 '18 at 1:41
also can you share Professor entity class here?also share serviceimpl class as well.
– GauravRai1512
Nov 21 '18 at 1:41
can you share curso pojo class?
– GauravRai1512
Nov 21 '18 at 1:55
can you share curso pojo class?
– GauravRai1512
Nov 21 '18 at 1:55
add a comment |
2 Answers
2
active
oldest
votes
Can you use CascadeType.ALL whitch Cascade all operations (PERSIST,MERGE,REMOVE,REFRESH,DETACH).
For more details you can take a look here
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
add a comment |
you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
Remove
(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
from
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
and add it in
@OneToMany(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
side.
Explanation :
As vladmihalcea explained in this article and in his book, High-Performance Java Persistence, you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
The @ManyToOne side is always the Child association since it should map the underlying FK.
Therefore, move the CascadeType.ALL from the @ManyToOne association to the @OneToMany which should use the mappedBy attribute since it's the most efficient one-to-many mapping.
`
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Can you use CascadeType.ALL whitch Cascade all operations (PERSIST,MERGE,REMOVE,REFRESH,DETACH).
For more details you can take a look here
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
add a comment |
Can you use CascadeType.ALL whitch Cascade all operations (PERSIST,MERGE,REMOVE,REFRESH,DETACH).
For more details you can take a look here
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
add a comment |
Can you use CascadeType.ALL whitch Cascade all operations (PERSIST,MERGE,REMOVE,REFRESH,DETACH).
For more details you can take a look here
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
Can you use CascadeType.ALL whitch Cascade all operations (PERSIST,MERGE,REMOVE,REFRESH,DETACH).
For more details you can take a look here
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
answered Nov 21 '18 at 2:07
TinyOSTinyOS
92311029
92311029
add a comment |
add a comment |
you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
Remove
(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
from
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
and add it in
@OneToMany(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
side.
Explanation :
As vladmihalcea explained in this article and in his book, High-Performance Java Persistence, you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
The @ManyToOne side is always the Child association since it should map the underlying FK.
Therefore, move the CascadeType.ALL from the @ManyToOne association to the @OneToMany which should use the mappedBy attribute since it's the most efficient one-to-many mapping.
`
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
add a comment |
you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
Remove
(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
from
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
and add it in
@OneToMany(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
side.
Explanation :
As vladmihalcea explained in this article and in his book, High-Performance Java Persistence, you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
The @ManyToOne side is always the Child association since it should map the underlying FK.
Therefore, move the CascadeType.ALL from the @ManyToOne association to the @OneToMany which should use the mappedBy attribute since it's the most efficient one-to-many mapping.
`
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
add a comment |
you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
Remove
(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
from
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
and add it in
@OneToMany(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
side.
Explanation :
As vladmihalcea explained in this article and in his book, High-Performance Java Persistence, you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
The @ManyToOne side is always the Child association since it should map the underlying FK.
Therefore, move the CascadeType.ALL from the @ManyToOne association to the @OneToMany which should use the mappedBy attribute since it's the most efficient one-to-many mapping.
`
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
Remove
(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
from
@ManyToOne(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
and add it in
@OneToMany(fetch = FetchType.LAZY, optional = false, cascade =
CascadeType.PERSIST)
side.
Explanation :
As vladmihalcea explained in this article and in his book, High-Performance Java Persistence, you should never use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones.
The @ManyToOne side is always the Child association since it should map the underlying FK.
Therefore, move the CascadeType.ALL from the @ManyToOne association to the @OneToMany which should use the mappedBy attribute since it's the most efficient one-to-many mapping.
`
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
answered Nov 21 '18 at 4:35
AlienAlien
4,95331026
4,95331026
add a comment |
add a comment |
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also can you share Professor entity class here?also share serviceimpl class as well.
– GauravRai1512
Nov 21 '18 at 1:41
can you share curso pojo class?
– GauravRai1512
Nov 21 '18 at 1:55