2.4、编写 Student 实体类

package javabean;
import lombok.*;
import java.util.Date;
@Getter//get方法
@Setter//set方法
@NoArgsConstructor//无参构造方法
@AllArgsConstructor//全参构造方法
@ToString//toString方法
public class Student {
    private Integer id;
    private String name;
    private String email;
    private Integer age;
   // private Date birthday;
    //private Byte[] files;
}