第3章 MyBatis开发步骤
3.1 建表
create table t_users(id int primary key auto_increment,name varchar(50),password varchar(50),sex varchar(1),birthday datetime,registTime datetime
);
insert into t_users values(1,'aaa','123','男','1999-12-12','2020-11-11 12:13:14');
insert into t_users values(2,'bbb','123','女','2000-11-13','2021-12-13 12:13:14');
insert into t_users values(3,'ccc','123','男','1998-02-12','1999-01-10 12:13:14');
3.2 创建实体类
package org.example.entity;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.Date;
@Data//提供类的get、set、equals、hashCode、canEqual、toString方法
@AllArgsConstructor //提供类的全参构造器
@NoArgsConstructor //提供类的无参构造器
public class User { private Integer id; private String name; private String password; private String se