How to send values to parent table column in json - json

Question

Customer entity
#Entity
#Table(name="Customer")
public class Customer {
#Id
#GeneratedValue
private Long cusId;
#Column(name="firstname")
private String firstName;
#Column(name="lastname")
private String lastName;
#Column(name="address")
private String add;
#Column(name="tel")
private int tel;
#Column(name="email")
private String email;
#Column(name="userName")
private String username;
#Column(name="password")
private String password;
#OneToMany(fetch = FetchType.EAGER, mappedBy = "customer")
#JsonManagedReference
private List<Complain> complain=new ArrayList<Complain>();
public Customer() {
super();
// TODO Auto-generated constructor stub
}
public Long getCusId() {
return cusId;
}
public void setCusId(Long cusId) {
this.cusId = cusId;
}
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 getAdd() {
return add;
}
public void setAdd(String add) {
this.add = add;
}
public int getTel() {
return tel;
}
public void setTel(int tel) {
this.tel = tel;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public List<Complain> getComplain() {
return complain;
}
public void setComplain(List<Complain> complain) {
this.complain = complain;
}
}
Complain Entity
#Entity
#Table(name="Complain")
public class Complain {
#Id
#GeneratedValue
private Long id;
#Column(name="repfirst")
private String repfirst;
#Column(name="replast")
private String replast;
#Column(name="warranty")
private String warranty;
#Column(name="dop")
private String purDate;
#Column(name="Nomachine")
private String Nomachine;
#Column(name="Complain")
private String Complain;
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name="cus_id", referencedColumnName = "cusId")
#JsonBackReference
private Customer customer;
public Complain() {
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getRepfirst() {
return repfirst;
}
public void setRepfirst(String repfirst) {
this.repfirst = repfirst;
}
public String getReplast() {
return replast;
}
public void setReplast(String replast) {
this.replast = replast;
}
public String getWarranty() {
return warranty;
}
public void setWarranty(String warranty) {
this.warranty = warranty;
}
public String getPurDate() {
return purDate;
}
public void setPurDate(String purDate) {
this.purDate = purDate;
}
public String getNomachine() {
return Nomachine;
}
public void setNomachine(String nomachine) {
Nomachine = nomachine;
}
public String getComplain() {
return Complain;
}
public void setComplain(String complain) {
Complain = complain;
}
public Customer getCustomer() {
return customer;
}
public void setCustomer(Customer customer) {
this.customer = customer;
}
}
I want to pass data to the mysql database through the postman tool. How can I pass value for the foreign key column through the json query?
This is the method I have used in controller
#PostMapping(path="/",consumes="application/json",produces="application/json")
public void addComplain(#RequestBody Complain complain)
{
Integer id = complainService.getAllComplain().size()+1;
complain.setId(new Long(id));
complainService.createOrUpdateComplain(complain); }
After I send the request from the postman, all the data are saved except the foreign key. I think I missed something in mapping two tables.
This is my json query
{"complain":"No power",
"repfirst":"hi",
"replast":"all",
"warranty":"yes",
"purDate":"2020-02-29",
"nomachine":"6",
"tel":"46544654",
"Customer":[
{"cusId":"1"}
]
}
Database table image
Please help, Thanks in advance

Answer 1

{
"repfirst": "",
"replast": "",
"warranty": "",
"purDate" : "",
"Nomachine": "",
"Complain": "",
"cus_id": 1
}
That should work
"Customer":[
{"cusId":"1"}
]
This would work if you had Set<Customer> customers converted to an array in json, for example.