package org.dromara.demo.domain; import jakarta.persistence.*; import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; @Entity @Table(name = "t_student_demo") @Data @AllArgsConstructor @NoArgsConstructor public class Student { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) // 主键自增长 @Column(name = "id") private Long id; @Column(name = "name") private String name; @Column(name = "age") private Integer age; }