mybatisplus学习

填充功能

1、实现处理器接口

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package com.hgchain.data.service.manager.configure; import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler; import lombok.extern.slf4j.Slf4j; import org.apache.ibatis.reflection.MetaObject; import org.springframework.stereotype.Component; import java.time.LocalDateTime; @Slf4j @Component public class MyMetaObjectHandler implements MetaObjectHandler {         @Override     public void insertFill(MetaObject metaObject) {         this.strictInsertFill(metaObject, "createTime", LocalDateTime.class, LocalDateTime.now());         }       @Override     public void updateFill(MetaObject metaObject) {         this.strictUpdateFill(metaObject, "updateTime", () -> LocalDateTime.now(), LocalDateTime.class);     } }

　　2、字段注解

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@TableField(value = "createTime",fill = FieldFill.INSERT)    private LocalDateTime createTime;      @TableField(value = "updateTime",fill = FieldFill.INSERT_UPDATE)    private LocalDateTime updateTime;

　　

and中套用or的使用

因为直接拼多个wrapper条件加or会产生数据混乱，需要使用and括号括起来or条件

 

 

 数据权限参考：https://blog.csdn.net/qq_43437874/article/details/114691376