third_codes/mybatis-plus-join
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yulichang 2022-11-22 16:55:59 +08:00
parent f8ca459519
commit 12821a2c87
1 changed files with 15 additions and 15 deletions
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mybatis-plus-join-core/src/main/java/com/github/yulichang/wrapper/MPJLambdaWrapper.java
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@ -148,16 +148,16 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
/**
* 一对多查询 调用此方法发必需要调用对应的 left join / right join ... 连表方法，否则会报错
* <p>
* 举例 UserDO UserAddressDO 为一对多关系 UserDTO 为结果类
* 举例 UserDO AddressDO 为一对多关系 UserDTO 为结果类
* <pre>
* MPJLambdaQueryWrapper<UserDO> wrapper = new MPJLambdaQueryWrapper<UserDO>();
* wrapper.selectAll(UserDO.class)
* .selectCollection(UserAddressDO.class, UserDTO::getAddressListDTO)
* .leftJoin(UserAddressDO.class, ...... )
* .selectCollection(AddressDO.class, UserDTO::getAddressListDTO)
* .leftJoin(AddressDO.class, ...... )
* .eq(...)
* ...
* <pre/>
* 会自动将 UserAddressDO类中相同属性的字段 以mybatis<collection>的方式映射到UserDTO.addressListDTO属性中
* 会自动将 AddressDO类中相同属性的字段 以mybatis<collection>的方式映射到UserDTO.addressListDTO属性中
*
* @since 1.3.0
*
@ -190,20 +190,20 @@ public class MPJLambdaWrapper<T> extends MPJAbstractLambdaWrapper<T, MPJLambdaWr
/**
* 一对多查询 调用此方法发必需要调用对应的 left join / right join ... 连表方法，否则会报错
* <p>
* 举例 UserDO UserAddressDO 为一对多关系 UserDTO 为结果类
* 举例 UserDO AddressDO 为一对多关系 UserDTO 为结果类
* <pre>
* MPJLambdaQueryWrapper<UserDO> wrapper = new MPJLambdaQueryWrapper();
* wrapper.selectAll(UserDO.class)
* .selectCollection(UserAddressDO.class, UserDTO::getAddressListDTO, map -> map
* .id(UserAddressDO::getId, AddressDTO::getId) //如果属性名一致 可以传一个
* .result(UserAddressDO::getUserId) //如果属性名一致 可以传一个
* .result(UserAddressDO::getAddress, AddressDTO::getAddress))) //如果属性名一致 可以传一个
* .leftJoin(UserAddressDO.class, ...... )
* .eq(...)
* ...
* MPJLambdaQueryWrapper<UserDO> wrapper = new MPJLambdaQueryWrapper();
* wrapper.selectAll(UserDO.class)
* .selectCollection(AddressDO.class, UserDTO::getAddressListDTO, map -> map
* .id(AddressDO::getId, AddressDTO::getId) //如果属性名一致 可以传一个
* .result(AddressDO::getUserId) //如果属性名一致 可以传一个
* .result(AddressDO::getAddress, AddressDTO::getAddress))) //如果属性名一致 可以传一个
* .leftJoin(AddressDO.class, ...... )
* .eq(...)
* ...
* <pre/>
*
* 会自动将 UserAddressDO类中指定的字段 以mybatis<collection>的方式映射到UserDTO.addressListDTO属性中
* 会自动将 AddressDO类中指定的字段 以mybatis<collection>的方式映射到UserDTO.addressListDTO属性中
*
* @since 1.3.0
*