src/main/java/com/huaheng/framework/config/MyMetaObjectHandler.java

package com.huaheng.framework.config;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import com.huaheng.common.utils.security.ShiroUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;
import java.util.Date;
/**
 * Created by Enzo Cotter on 2020/7/7.
 */
@Slf4j
@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    /**
     * 插入元对象字段填充（用于插入时对公共字段的填充）
     *
     * @param metaObject 元对象
     */
    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("start insert fill ....");
        this.setFieldValByName("created", new Date(), metaObject);
        if (ShiroUtils.getUserName() != null) {
//            System.out.println(metaObject.getOriginalObject() instanceof TaskHeader);
//            if (metaObject.getOriginalObject() instanceof TaskHeader) {
//
//            } else {
//                this.setFieldValByName("createdBy", ShiroUtils.getUserName(), metaObject);
//            }
            this.setFieldValByName("createdBy", ShiroUtils.getUserName(), metaObject);
            this.setFieldValByName("lastUpdatedBy", ShiroUtils.getUserName(), metaObject);
        } else {
            this.setFieldValByName("createdBy", ShiroUtils.getLoginName(), metaObject);
            this.setFieldValByName("lastUpdatedBy", ShiroUtils.getLoginName(), metaObject);
        }
        this.setFieldValByName("lastUpdated", new Date(), metaObject);
    }
    /**
     * 更新元对象字段填充（用于更新时对公共字段的填充）
     *
     * @param metaObject 元对象
     */
    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("lastUpdated", new Date(), metaObject);
        if (ShiroUtils.getUserName() != null) {
            this.setFieldValByName("lastUpdatedBy", ShiroUtils.getUserName(), metaObject);
        } else {
            if (ShiroUtils.getUserName() != null) {
                this.setFieldValByName("lastUpdatedBy", ShiroUtils.getLoginName(), metaObject);
            }
        }
    }
}