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@Entitypublic class Student { @Id @GeneratedValue(strategy=GenerationType.AUTO) private Integer id; private Timestamp date; private String room; @OneToOne(cascade=CascadeType.ALL) private Pe...

双向关联的1对1关系：public class People { private Integer id; private String name; private int age; private Student student; }public class People { private Integer id; private String name; private in...

public class People { private Integer id; private String name; private int age; private Student student; //get和set方法 }public class Student { private Integer id; private Timestamp date; pr...