无法执行语句列“iduser”不能为空

Question

我是一名新开发人员。我正在尝试发布“leilao”信息，但我的数据库（leilao）中有一个列，其中外键（iduser）将id引用到我的其他列（usuario）id。我在我的类 Leilao.java 中使用注释 @ManyToOne 和 @JounColumn。这里有什么问题吗？ 感谢您的帮助！

我希望使用 id 发布与 usuario 列相关的“leilao”信息。

package br.com.leilao.leiloesapi.leilao;

import jakarta.persistence.\*;

import java.time.LocalDate;

import br.com.leilao.leiloesapi.usuario.Usuario;
import lombok.\*;

@Table(name = "leiloes")
@Entity(name = "Leiloes")
@Getter
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(of = "id")
public class Leilao {

@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "iduser")
private Usuario usuario;

private String name;
private Double price;
private LocalDate data;

public Leilao(DadosCadastroLeilao dadosCadastroLeilao) {
    this.name = dadosCadastroLeilao.name();
    this.price = dadosCadastroLeilao.price();
    this.data = dadosCadastroLeilao.data();

}

}

create table leiloes(

id bigint not null auto_increment,
iduser bigint not null,
name varchar(100) not null,
price decimal not null,
data date not null,

primary key(id),
constraint fk_leiloes_iduser foreign key(iduser) references usuarios(id)

);

package br.com.leilao.leiloesapi.usuario;

import jakarta.persistence.\*;
import lombok.AllArgsConstructor;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.NoArgsConstructor;

@Table(name = "usuarios")
@Entity(name = "Usuario")
@Getter
@NoArgsConstructor
@AllArgsConstructor
@EqualsAndHashCode(of = "id")
public class Usuario {

@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

private String name;
private String username;
private String password;

public Usuario(DadosCadastroUsuario dadosCadastroUsuario) {
    this.name = dadosCadastroUsuario.name();
    this.username = dadosCadastroUsuario.username();
    this.password = dadosCadastroUsuario.password();
}

}

{
"iduser": 25,
"name": "Iphone 14",
"price": "14000",
"data": "2023-11-20"
}

我使用的是JAVA 17，Spring Boot和MYSQL数据库。

Answer 1