项目是基于JPA的持久性与两个实体（部门和雇员）部门（一对多）和雇员（多对一）每当我通过API发送请求有一个StackOverFlow错误。到目前为止，我追溯的主要原因是堆栈是满的是不确定的递归。有人能解释为什么通常会发生这种情况，它不应该有混淆的双向关系的实体。

package com.springjpacrud01.model;

import javax.persistence.*;
import java.util.List;

@Entity
@Table(name = "department")
public class Department {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @Column(name = "name")
    private String name;

    @OneToMany(mappedBy = "department", fetch = FetchType.LAZY)
    List<Employee> employees;

    public Department() {    }

    public Department(Long id, String name) {
        this.id = id;
        this.name = name;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public List<Employee> getEmployees() {
        return employees;
    }

    public void setEmployees(List<Employee> employees) {
        this.employees = employees;
    }

}

import com.fasterxml.jackson.annotation.JsonBackReference;

import javax.persistence.*;

@Entity
@Table(name = "employees")
public class Employee {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @Column(name = "name")
    private String name;
    @Column(name = "position")
    private String position;

    @ManyToOne
    @JoinColumn(name = "department_id")
    private Department department;

    public Employee(Long id, String name, String position) {
        this.id = id;
        this.name = name;
        this.position = position;
    }

    public Employee() {

    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPosition() {
        return position;
    }

    public void setPosition(String position) {
        this.position = position;
    }

    public Department getDepartment() {
        return department;
    }

    public void setDepartment(Department department) {
        this.department = department;
    }
}

在我刚刚删除了部门实体的getter/setter之后，它工作了，但是它不应该像那样工作，我想知道为什么我不能做指向其他实体的关系？我猜它不能形成JSON响应是因为指向其他实体的无限递归。我怎样才能有效地解决这个问题，以便通过部门ID检索员工，谢谢）