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马汇博 / mybatis-plus-join

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README
Apache-2.0

mybatis-plus-join

mybatis-plus-join是mybatis plus的一个多表插件,上手简单,十分钟不到就能学会全部使用方式,只要会用mp就会用这个插件,仅仅依赖了lombok,而且是扩展mp的构造器并非更改原本的构造器,不会对原有项目产生一点点影响,相信大多数项目都有这插件,四舍五入就是没依赖。

mybatis-plus-join示例:

gitee: https://gitee.com/mhb0409/mybatis-plus-join-example github: https://github.com/bobo667/mybatis-plus-join-example

关于该插件的一点问题

  1. 出现了bug怎么办,不是mybatis plus官方的会不会不稳定啊? 这个大可以放心,这个插件我已经在生产环境跑了一年多了,已经有许多开发者再用,没出过什么问题,如果遇到问题可以在 Issues 上提出,我看见就会解决,上午提的,不忙的话下午就能打包新版本,忙的话大概就需要晚上就差不多了
  2. 关于维护到啥时候?mybatis plus不倒我不倒(当然,如果长期没有star,哪怕是我得先倒了,还是那,您的star就是作者更新的动力,手动ღ( ´・ᴗ・` )比心)
  3. 有什么有想法的新功能啊,或者改善啊,可以在Issues 上提出
  4. 如果想联系作者,可以在wx上搜索小程序 马汇博的博客在关于我中有微信号,欢迎来扰

如果需要加群,请加我微信我拉您进群

tmp_9c854beed43b4f9eaf4984f42eefa027

目前支持大部分mp常用版本

maven坐标

mybatis plus:3.2.0版本依赖地址:

 <dependency>
   <groupId>icu.mhb</groupId>
   <artifactId>mybatis-plus-join</artifactId>
   <version>1.2.0</version>
</dependency>

最新版本依赖地址:

 <dependency>
   <groupId>icu.mhb</groupId>
   <artifactId>mybatis-plus-join</artifactId>
   <version>1.3.7</version>
</dependency>

版本对应关系(此处只显示对应的最新版本)

标注:*号代表,从起始版本之后都是可以使用的

Mybatis-plus Mybatis-plus-join
3.2.0 1.2.0
3.3.1 - 3.42 1.0.2、1.3.4.1
3.4.3.4 - 3.5.2 1.0.3 、1.0.4、1.0.5、1.0.6、1.0.8、1.0.9、1.1.1、1.1.2、1.1.3、1.1.4、1.1.5、1.1.6、1.3.1、1.3.2、1.3.3
3.5.3 - * 1.3.3.1、1.3.4、1.3.5、1.3.5.1、1.3.6、1.3.7

使用预览

List<UsersVo> list = Joins.of(Users.class)
                .leftJoin(UsersAge.class,UsersAge::getAgeId,Users::getAgeId)
  							.eq(UsersAge::getAgeName,1).end()
                .joinList(UsersVo.class);

 // 生成SQL
SELECT
	users.user_name,
	users.create_time,
	users.age_id,
	users.content_json,
	users.user_id
FROM
	users AS users
	LEFT JOIN users_age AS users_age ON users_age.id = users.age_id 
WHERE
	users_age.age_name = '1'

使用文档

https://www.mhb.icu

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简介

mybatis-plus的多表插件完全按照mybats plus的用法来做,支持一对一返回映射,多对多返回映射,自定义返回Vo,自定义表别名,自定义查询字段,你只要会mp,那你就会用mpj,无感引入,不会对之前的业务产生一点点影响,采用扩展方式来集成mp,更容易适配版本,后期mp版本升级,您不用更改东西,只需要更新版本就行(目前支持大部分主流版本 ) 展开 收起
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