Inserting Data in Multiple Tables in Hibernate

I have been stuck on this all day. I have a form making a POST to the API and I want the data to be saved into 3 tables.

1. Records are saved in one table (Squad) that has auto generated Id. At insert in this table I want to read the auto generated Id of records and insert those in a different table (SquadPlayers) plus also insert an extra field that was submitted by the form in this 2nd table (SquadPlayers: GenericPlayerId).
2. Also a bit about what I want to submit from the front end form. I want all info about the squad plus Ids for upto 11 players submitted (these ids are what I will like to save in the field GenericPlayerId filed for SquadPlayers table).

I am new to backend coding especially databases and this new stack I picked up for learning purposes so if you are seeing anything silly here, now you know why :-) So if you think I am totally off or wrong with the my database design let me know.

So far I have this in my two classes for Squad and SquadPlayers.

Squad.java

package com.FUT.track.web.FUTtrackapplication.squads;

import javax.persistence.*;

@Entity
@Table(name="Squad")
public class Squad {

    @Id
    @GeneratedValue( strategy = GenerationType.IDENTITY )
    private int squadId;
    private String squadName;
    private String squadDescription;
    private String primaryFormation;

    @OneToOne(cascade = CascadeType.ALL)
    @JoinColumn(name = "playerId")
    private SquadPlayers squadPlayers;


    public Squad() {

    }

    public Squad(String squadName, String squadDescription, String primaryFormation, SquadPlayers squadPlayers) {
        super();
        this.squadName = squadName;
        this.squadDescription = squadDescription;
        this.primaryFormation = primaryFormation;
        this.squadPlayers = squadPlayers;

    }

    public int getSquadId() {
        return squadId;
    }

    public void setSquadId(int squadId) {
        this.squadId = squadId;
    }

    public String getSquadName() {
        return squadName;
    }

    public void setSquadName(String squadName) {
        this.squadName = squadName;
    }

    public String getSquadDescription() {
        return squadDescription;
    }

    public void setSquadDescription(String squadDescription) {
        this.squadDescription = squadDescription;
    }

    public String getPrimaryFormation() {
        return primaryFormation;
    }

    public void setPrimaryFormation(String primaryFormation) {
        this.primaryFormation = primaryFormation;
    }

    public SquadPlayers getSquadPlayers() {
        return squadPlayers;
    }

    public void setSquadPlayers(SquadPlayers squadPlayers) {
        this.squadPlayers = squadPlayers;
    }

}

SquadPlayers.java

 package com.FUT.track.web.FUTtrackapplication.squads;

import javax.persistence.*;

@Entity
@Table(name="SquadPlayers")
public class SquadPlayers {

    @Id
    private Integer playerId;
    private Integer squadId;
    private Integer genericPlayerId;

    @OneToOne(mappedBy = "squadPlayers")
    private Squad squad;

    public Integer getPlayerId() {
        return playerId;
    }

    public void setPlayerId(Integer playerId) {
        this.playerId = playerId;
    }

    public Integer getSquadId() {
        return squadId;
    }

    public void setSquadId(Integer squadId) {
        this.squadId = squadId;
    }


    public Squad getSquad() {
        return squad;
    }

    public void setSquad(Squad squad) {
        this.squad = squad;
    }

    public Integer getGenericPlayerId() {
        return genericPlayerId;
    }

    public void setGenericPlayerId(Integer genericPlayerId) {
        this.genericPlayerId = genericPlayerId;
    }

}