xujie-sys/src/main/java/com/xujie/sys/config/MyMetaObjectHandler.java

package com.xujie.sys.config;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.xujie.sys.modules.sys.entity.SysUserEntity;
import org.apache.ibatis.reflection.MetaObject;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.shiro.SecurityUtils;
import org.springframework.stereotype.Component;

import java.util.Date;

/*
 * @Author li_she
 * @Description 自定义自动填充策略      @TableField(fill = FieldFill.INSERT)
 * @Date 2021/4/14 10:12
 **/
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    private Logger logger = LogManager.getLogger(getClass());

    @Override
    public void insertFill(MetaObject metaObject) {
//        SysUserEntity user = (SysUserEntity) SecurityUtils.getSubject().getPrincipal();
//        logger.info("start insert fill ....");
//        this.strictInsertFill(metaObject,"createdDate",Date.class, new Date());
//        this.strictInsertFill(metaObject,"site",String.class, user.getSite());
//        this.strictInsertFill(metaObject,"createdBy",String.class, user.getUserDisplay());
        logger.info("公共字段自动填充【insert】");
        metaObject.setValue("createDate", new Date());
        //metaObject.setValue("updateDate", new Date());
    }

    @Override
    public void updateFill(MetaObject metaObject) {
//        logger.info("start update fill ....");
//        this.strictUpdateFill(metaObject, "updatedDate", Date.class, new Date());
        if (metaObject.getValue("updateDate") == null) { // 判断公共填充字段的值是否为空，如果为空才自动填充，不为空直接结束
            logger.info("公共字段自动填充【update】");
            metaObject.setValue("updateDate", new Date());
        }
    }

}