JPA - 变量 double 正在四舍五入

Question

我有一个这样的模型实体：

    @Entity
public class Produtos{
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    
    private String nome;
    
    private Long quantidade;
    
    private boolean frete;
    
    private Double precoNovo;
    
    private Double precoAntigo;
    
    private boolean promocao;
    
    private boolean variacaoCor;
    
    private String[] cores;
    
    private String corUnica;
}

当我使用 (private Double precoAntigo) 保存产品价格时，spring 将值四舍五入，例如：2500.50 到 2500，如何禁用此选项？

Answer 1

https://docs.jboss.org/hibernate/jpa/2.1/api/javax/persistence/Column.html#precision() https://docs.jboss.org/hibernate/jpa/2.1/api/javax/persistence/Column.html#scale()

@Column(scale=2)
private Double precoNovo;

@Column(scale=2)
private Double precoAntigo;