mybatisPlus自动填充更新时间的示例代码

@NoArgsConstructor

@AllArgsConstructor

@Data

public class User {

     @TableId (type = IdType.AUTO)

     private Long id;

     private String name;

     private Integer age;

     private String email;

     @TableField (fill = FieldFill.INSERT)

     private Date createTime;

     @TableField (fill = FieldFill.INSERT_UPDATE)

     private Date updateTime;

}

@Component

@Slf4j

public class MyDetaObjectHander implements MetaObjectHandler {

     @Override

     public void insertFill(MetaObject metaObject) {

         log.info( "come to insert fill ........." );

         //setFieldValByName(String fieldName, Object fieldVal, MetaObject metaObject)

         this .setFieldValByName( "createTime" , new Date(),metaObject);

         this .setFieldValByName( "updateTime" , new Date(),metaObject);

     }

     @Override

     public void updateFill(MetaObject metaObject) {

         log.info( "come to update fill ......." );

         this .setFieldValByName( "updateTime" , new Date(),metaObject);

     }

}

//添加用户

    @Test

    public void addUser(){

        User user = new User();

        user.setAge( 23 );

        user.setEmail( "168@qq测试数据" );

        user.setName( "gwq" );

        int insert = userDao.insert(user);

        System.out.println(insert);

    }

    @Test

    public void update(){

        User user = new User();

        user.setAge( 23 );

        user.setEmail( "168@qq测试数据" );

        user.setName( "gwq" );

        user.setId(1299641789988229125L);

        int i = userDao.updateById(user);

        System.out.println(i);

    }