@TableField(value = "CREATED_BY", fill = FieldFill.INSERT)
private String createdBy;
@TableField(value = "CREATED_TIME", fill = FieldFill.INSERT)
private Date createdTime;
@TableField(value = "UPDATED_BY", fill = FieldFill.UPDATE)
private String updatedBy;
@TableField(value = "UPDATED_TIME", fill = FieldFill.UPDATE)
private Date updatedTime;

/**
 * 自动填充功能
 * @return
 */
@Bean
public GlobalConfig globalConfig() {
    GlobalConfig globalConfig = new GlobalConfig();
    globalConfig.setMetaObjectHandler(new MetaHandler());
    return globalConfig;
}

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

import java.util.Date;

/**
 * @Date 2020-02-24 09:57
 * @Author sulg
 * @Description 公共字段填充
 */
@Component
public class MetaHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("createdBy", ShiroUtils.getUserName(), metaObject);
        this.setFieldValByName("createdTime", new Date(), metaObject);
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("updatedBy", ShiroUtils.getUserName(), metaObject);
        this.setFieldValByName("updatedTime", new Date(), metaObject);
    }
}