时间：2021-02-22 18:01:19 | 栏目：JAVA代码 | 点击：次
本文主要给大家介绍了关于Spring Boot防止递归查询的相关内容，这只是一个小提醒，这里有两种方式，很简单，下面来看看详细的介绍：
1、在application.properties中配置
#懒加载配置 spring.jpa.properties.hibernate.enable_lazy_load_no_trans=true
2、在entity中添加注解
@JsonIgnoreProperties("roles") ，括号中填写不需要查出的对象
@Entity
@Table(name = "users")
//@JsonIgnoreProperties("roles")
public class User implements Serializable {
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Id
private int id;
@Column
private String name;
@Column(name = "created_at")
@DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
private Date createdAt;
@ManyToOne
@JoinColumn(name = "dep_id")
@JsonBackReference //防止关系对象的递归访问
private Department department;
@ManyToMany(cascade = {}, fetch = FetchType.EAGER)
@JoinTable(name = "user_role", joinColumns = {@JoinColumn(name = "user_id")}, inverseJoinColumns = {@JoinColumn(name = "role_id")})
@JsonBackReference
private List<Role> roles = new ArrayList<>();
......
}
总结