1.第一步：配置类
```package com.laoyang.Config;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;
import java.util.Date;
/**
- @author:Kevin
- @create: 2022-08-30 10:23
@Description: 自动填充时间
/
@Component
public class CommonMetaObjectHandler implements MetaObjectHandler {
/*- 新增时自动填充
@param metaObject
*/
@Override
public void insertFill(MetaObject metaObject) {
//参数1：数据对象，就是原数据
//参数2：属性名称，一定要和实体类名称一致
//参数3：类对象
//参数4：当前时间
this.strictInsertFill(metaObject,"createTime", Date.class,new Date());
this.strictInsertFill(metaObject,"updateTime", Date.class,new Date());
}/**
- 修改
- @param metaObject
/
@Override
public void updateFill(MetaObject metaObject) {
this.strictInsertFill(metaObject,"updateTime", Date.class,new Date());
}
}2.第二步：在填充的实体类上添加注解/* 创建时间
*/
@TableField(fill = FieldFill.INSERT_UPDATE)
private Date createTime;/**
- 修改时间
*/
@TableField(fill = FieldFill.UPDATE)
private Date updateTime;
```
