third_codes/mybatis-plus-join
1
0
Fork 0
mirror of https://gitee.com/best_handsome/mybatis-plus-join synced 2025-07-11 00:02:22 +08:00
Code Issues Packages Projects Releases Wiki Activity

支持字段映射升级 mybatis plus -> 3.4.3.2

Browse Source
This commit is contained in:
bjdys 2021-08-23 18:33:37 +08:00
parent d1eb0eb1ac
commit 3dd1caa51d
1 changed files with 25 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
MAPPING.md
View File

@ -1,6 +1,6 @@
# mybatis-plus-join
* 本页功能只能在1.2.0测试版中使用,最新版本 1.2.0.Beta3
* 本页功能只能在1.2.0测试版中使用,最新版本 1.2.0.Beta4
* 点个Star支持一下吧 :)
@ -15,12 +15,12 @@ QQ群:1022221898
<dependency>
<groupId>com.github.yulichang</groupId>
<artifactId>mybatis-plus-join</artifactId>
<version>1.2.0.Beta3</version>
<version>1.2.0.Beta4</version>
</dependency>
```
- Gradle
```
implementation group: 'com.github.yulichang', name: 'mybatis-plus-join', version: '1.2.0.Beta3'
implementation group: 'com.github.yulichang', name: 'mybatis-plus-join', version: '1.2.0.Beta4'
```
或者clone代码到本地执行 mvn install, 再引入以上依赖
<br>
@ -45,22 +45,36 @@ public class UserDO {
@TableId
private Integer id;
private Integer pid;//父id
private Integer pid;
/* 其他属性略 */
/**
* 一对一
* 查询上级 一对一
*/
@TableField(exist = false)
@MPJMapping(tag = UserDO.class, thisField = "pid", joinField = "id")
@EntityMapping(thisField = "pid", joinField = "id")
private UserDO pUser;
/**
* 一对多
* 查询下级 一对多
*/
@TableField(exist = false)
@MPJMapping(tag = UserDO.class, thisField = "id", joinField = "pid")
private List<UserDO> childUserList;
@EntityMapping(thisField = "id", joinField = "pid")
private List<UserDO> childUser;
/**
* 查询地址 (一对多)
*/
@TableField(exist = false)
@EntityMapping(thisField = "id", joinField = "userId")
private List<UserAddressDO> addressList;
/**
* 绑定字段 （一对多）
*/
@TableField(exist = false)
@FieldMapping(tag = UserDO.class, thisField = "id", joinField = "pid", select = "id")
private List<Integer> childIds;
}
```
@ -69,8 +83,8 @@ public class UserDO {
```java
/**
* 一对一，一对多关系映射查询
* 映射只对MPJBaseDeepService中的方法有效果 ，一般以Deep结尾，比如 getByIdDeep listByIdsDeep 等
* 如果不需要关系映射就使用mybatis plus原生方法即可，比如 getById listByIds 等
* 映射查询一般以Deep结尾，比如 selectByIdDeep selectListDeep 等
* 如果不需要关系映射就使用mybatis plus原生方法即可，比如 electById selectList 等
*
* @see com.github.yulichang.base.service.MPJDeepService
*/