springboot注解实现自动插入创建时间和更新时间到数据库

1.在实体类上加注解@TableField(fill = FieldFill.INSERT)2.增加配置类package com.atguigu.servicebase.handler;import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;import org.apache.ibatis.reflection.MetaObj

柯小帅

3835人浏览 · 2022-05-02 14:19:25

柯小帅 · 2022-05-02 14:19:25 发布

1.在实体类上加注解@TableField(fill = FieldFill.INSERT)

在这里插入图片描述

2.增加配置类

package com.atguigu.servicebase.handler;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.util.Date;

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("gmtCreate", new Date(), metaObject);
        this.setFieldValByName("gmtModified", new Date(), metaObject);
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("gmtModified", new Date(), metaObject);
    }
}