如何使用弹簧数据jpa

Question

我有一个名为Conflict的表，该表具有一个主叫冲突的ID，其值来自我的UI。并且我有表Producer，Sales表还包含冲突ID，Producer包含Producer ID，Sales包含sales_id，我这样映射

@Entity
class Conflict{
@Id
@Column(name="conflict_id")

@ManytoOne()
@JoinedColumn(name="conflict_id)
private List<Producer> produer;

@ManytoOne()
@JoinedColumn(name="conflict_id)
private List<Sales > sales ;


and Sales class is


@Entity
class Sales{

@Id
@Column(name="id")
private Long id;

@Column(name="sales_id")
private Long salesid;

@OneToMay(mappedBy="sales")
private Conflict conflict;

and Producer class is like


@Entity
class Producer{

@Id
@Column(name="id")
private Long id

@Column(name="producer_id")
private Long producerId;

@OnetoMany(mappedBy="producer")
private Conflict conflict
}

在这里，我想在冲突表中插入一个新行，并希望基于sales_id和producer_id更新具有冲突ID的Sales和Producer表， 任何人请提出我如何实现此功能