Hibernate,Spring和外键

Question

我正在开发一个hibernate,spring项目来帮助我理解这两者的基础知识.我遇到了一个问题,我希望能够将外键添加到我的表中.

我一直在浏览互联网以获取有关此主题的信息,但我无法找到适合我需求的内容.

我有两节课:

 Schools
 Classes

现在我想将主键从Schools映射到Classes.

这是我现在的代码:

@ManyToOne
@JoinColumn(name = "SCHOOL_ID", table = "SCHOOL")
private School school;

对于我的吸气剂和二传手:

public long getSchool() {
    return school.getId();
}

public void setSchool(long schoolId) {
    this.school.setId(schoolId);
}

这是要走的路吗？或者我完全以错误的方式看待它.

谢谢!

Answer 1

你是在正确的轨道上,虽然它更好地处理实际的对象而不是ids,例如

@ManyToOne
@JoinColumn(name = "SCHOOL_ID", table = "SCHOOL")
private School school;


public School getSchool() {
    return school;
}

public void setSchool(School school) {
    this.school=school;
}