mybatis 自定义查询语句 1
使用场景:
如,需要给查询sql 表明后面添加指定 sql语段,如:强制索引:force index (PRIMARY)
select ICCID,INTER_CODE,CLIENT_ACCOUNT from iot_card_base_info force index (`PRIMARY`) where ICCID = ''
但是通过mybatis自带的QueryWrapper 无法在表明后面,where前面拼接sql,所以需要自定义sql
1、覆盖mybatis 的 SqlMethod
1、创建包:com.baomidou.mybatisplus.core.enums
创建下面文件,注意,包名,类名不能修改,内容也不允许修改,只能做增加,因为下面内容是mybatis自带的内容
/*
* Copyright (c) 2011-2023, baomidou (jobob@qq.com).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.baomidou.mybatisplus.core.enums;
/**
* MybatisPlus 支持 SQL 方法
*/
public enum SqlMethod {
/**
* 插入
*/
INSERT_ONE("insert", "插入一条数据(选择字段插入)", "<script>\nINSERT INTO %s %s VALUES %s\n</script>"),
UPSERT_ONE("upsert", "Phoenix插入一条数据(选择字段插入)", "<script>\nUPSERT INTO %s %s VALUES %s\n</script>"),
/**
* 删除
*/
DELETE_BY_ID("deleteById", "根据ID 删除一条数据", "DELETE FROM %s WHERE %s=#{%s}"),
@Deprecated
DELETE_BY_MAP("deleteByMap", "根据columnMap 条件删除记录", "<script>\nDELETE FROM %s %s\n</script>"),
DELETE("delete", "根据 entity 条件删除记录", "<script>\nDELETE FROM %s %s %s\n</script>"),
DELETE_BATCH_BY_IDS("deleteBatchIds", "根据ID集合,批量删除数据", "<script>\nDELETE FROM %s WHERE %s IN (%s)\n</script>"),
/**
* 逻辑删除
*/
LOGIC_DELETE_BY_ID("deleteById", "根据ID 逻辑删除一条数据", "<script>\nUPDATE %s %s WHERE %s=#{%s} %s\n</script>"),
LOGIC_DELETE_BY_MAP("deleteByMap", "根据columnMap 条件逻辑删除记录", "<script>\nUPDATE %s %s %s\n</script>"),
LOGIC_DELETE("delete", "根据 entity 条件逻辑删除记录", "<script>\nUPDATE %s %s %s %s\n</script>"),
LOGIC_DELETE_BATCH_BY_IDS("deleteBatchIds", "根据ID集合,批量逻辑删除数据", "<script>\nUPDATE %s %s WHERE %s IN (%s) %s\n</script>"),
/**
* 修改
*/
UPDATE_BY_ID("updateById", "根据ID 选择修改数据", "<script>\nUPDATE %s %s WHERE %s=#{%s} %s\n</script>"),
UPDATE("update", "根据 whereEntity 条件,更新记录", "<script>\nUPDATE %s %s %s %s\n</script>"),
/**
* 逻辑删除 -> 修改
*/
LOGIC_UPDATE_BY_ID("updateById", "根据ID 修改数据", "<script>\nUPDATE %s %s WHERE %s=#{%s} %s\n</script>"),
/**
* 查询
*/
SELECT_BY_ID("selectById", "根据ID 查询一条数据", "SELECT %s FROM %s WHERE %s=#{%s} %s"),
@Deprecated
SELECT_BY_MAP("selectByMap", "根据columnMap 查询一条数据", "<script>SELECT %s FROM %s %s\n</script>"),
SELECT_BATCH_BY_IDS("selectBatchIds", "根据ID集合,批量查询数据", "<script>SELECT %s FROM %s WHERE %s IN (%s) %s </script>"),
@Deprecated
SELECT_ONE("selectOne", "查询满足条件一条数据", "<script>%s SELECT %s FROM %s %s %s\n</script>"),
SELECT_COUNT("selectCount", "查询满足条件总记录数", "<script>%s SELECT COUNT(%s) AS total FROM %s %s %s\n</script>"),
SELECT_LIST("selectList", "查询满足条件所有数据", "<script>%s SELECT %s FROM %s %s %s %s\n</script>"),
@Deprecated
SELECT_PAGE("selectPage", "查询满足条件所有数据(并翻页)", "<script>%s SELECT %s FROM %s %s %s %s\n</script>"),
SELECT_MAPS("selectMaps", "查询满足条件所有数据", "<script>%s SELECT %s FROM %s %s %s %s\n</script>"),
@Deprecated
SELECT_MAPS_PAGE("selectMapsPage", "查询满足条件所有数据(并翻页)", "<script>\n%s SELECT %s FROM %s %s %s %s\n</script>"),
SELECT_OBJS("selectObjs", "查询满足条件所有数据", "<script>%s SELECT %s FROM %s %s %s %s\n</script>");
private final String method;
private final String desc;
private final String sql;
SqlMethod(String method, String desc, String sql) {
this.method = method;
this.desc = desc;
this.sql = sql;
}
public String getMethod() {
return method;
}
public String getDesc() {
return desc;
}
public String getSql() {
return sql;
}
}
2、添加自己的枚举
SELECT_LIST_BY_PRI("selectListByPri", "查询满足条件所有数据", "<script>%s SELECT %s FROM %s force index (`PRIMARY`) %s %s %s\n</script>"),
区别:在表明后面增加force index (PRIMARY),强制索引,也可以添加自己的内容
2、覆盖mybatis 的 AbstractMethod
1、创建包:com.baomidou.mybatisplus.core.injector.methods
创建下面文件,该文件是自定义sql的处理方法
/*
* Copyright (c) 2011-2023, baomidou (jobob@qq.com).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.baomidou.mybatisplus.core.injector.methods;
import com.baomidou.mybatisplus.core.enums.SqlMethod;
import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.metadata.TableInfo;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlSource;
/**
* 查询满足条件所有数据
*/
public class SelectListForIndex extends AbstractMethod {
public SelectListForIndex() {
this(SqlMethod.SELECT_LIST_BY_PRI.getMethod());
}
/**
* @param name 方法名
* @since 3.5.0
*/
public SelectListForIndex(String name) {
super(name);
}
@Override
public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass, TableInfo tableInfo) {
SqlMethod sqlMethod = SqlMethod.SELECT_LIST_BY_PRI;
String sql = String.format(sqlMethod.getSql(), sqlFirst(), sqlSelectColumns(tableInfo, true), tableInfo.getTableName(),
sqlWhereEntityWrapper(true, tableInfo), sqlOrderBy(tableInfo), sqlComment());
SqlSource sqlSource = super.createSqlSource(configuration, sql, modelClass);
return this.addSelectMappedStatementForTable(mapperClass, methodName, sqlSource, tableInfo);
}
}
3、覆盖mybatis 的 DefaultSqlInjector
1、创建包:com.baomidou.mybatisplus.core.injector
创建下面文件,注意,包名,类名不能修改,内容也不允许修改,只能做增加,因为下面内容是mybatis自带的内容
该文件是sql处理器的注入方法
/*
* Copyright (c) 2011-2023, baomidou (jobob@qq.com).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.baomidou.mybatisplus.core.injector;
import com.baomidou.mybatisplus.core.injector.methods.*;
import com.baomidou.mybatisplus.core.metadata.TableInfo;
import java.util.List;
import java.util.stream.Stream;
import static java.util.stream.Collectors.toList;
/**
* SQL 默认注入器
*/
public class DefaultSqlInjector extends AbstractSqlInjector {
@Override
public List<AbstractMethod> getMethodList(Class<?> mapperClass, TableInfo tableInfo) {
Stream.Builder<AbstractMethod> builder = Stream.<AbstractMethod>builder()
.add(new Insert())
.add(new Delete())
.add(new Update())
.add(new SelectCount())
.add(new SelectMaps())
.add(new SelectObjs())
.add(new SelectList())
.add(new SelectListForIndex());
if (tableInfo.havePK()) {
builder.add(new DeleteById())
.add(new DeleteBatchByIds())
.add(new UpdateById())
.add(new SelectById())
.add(new SelectBatchByIds());
} else {
logger.warn(String.format("%s ,Not found @TableId annotation, Cannot use Mybatis-Plus 'xxById' Method.",
tableInfo.getEntityType()));
}
return builder.build().collect(toList());
}
}
4、新增工具
package com.jxjumeng.common.mybatis.utils;
import cn.hutool.core.lang.Dict;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.enums.SqlMethod;
import com.baomidou.mybatisplus.core.toolkit.Constants;
import com.baomidou.mybatisplus.extension.toolkit.SqlHelper;
import com.jxjumeng.common.core.util.SpringContextHolder;
import org.mybatis.spring.SqlSessionTemplate;
import java.util.List;
public class BatchDbUtils {
/**
* 强制主键索引 基础查询
* @param wrapper
* @param mapperCls
* @return
* @param <T>
*/
public static <T,M> List<T> pageByPri(LambdaQueryWrapper<T> wrapper, Class<M> mapperCls){
SqlSessionTemplate sqlSessionTemplate = SpringContextHolder.getBean(SqlSessionTemplate.class);
return pageByPri(sqlSessionTemplate,wrapper, mapperCls);
}
/**
* 强制主键索引 基础查询
* @param sqlSessionTemplate
* @param wrapper
* @param mapperCls
* @return
* @param <T>
*/
public static <T,M> List<T> pageByPri(SqlSessionTemplate sqlSessionTemplate,LambdaQueryWrapper<T> wrapper, Class<M> mapperCls){
String sqlStatement = SqlHelper.getSqlStatement(mapperCls, SqlMethod.SELECT_LIST_BY_PRI);
return sqlSessionTemplate.selectList(sqlStatement, Dict.create()
.set(Constants.WRAPPER,wrapper)
);
}
}
5、使用
LambdaQueryWrapper<IotBusinessPackageRenewalLogEntity> lqw = Wrappers.<IotBusinessPackageRenewalLogEntity>lambdaQuery();
lqw.eq(IotBusinessPackageRenewalLogEntity::getOrderOutCost, "1");
lqw.eq(IotBusinessPackageRenewalLogEntity::getCreateTime, LocalDateTime.now());
lqw.in(IotBusinessPackageRenewalLogEntity::getLogId, "1821021537164181505", "2");
List<IotBusinessPackageRenewalLogEntity> renewalLogEntities = BatchDbUtils.pageByPri(lqw, IotBusinessPackageRenewalLogMapper.class);
6、也可以重写BaseMapper
1、创建包路径:com.baomidou.mybatisplus.core.mapper
2、创建BaseMapper
新增自己的方法:
/**
* 根据 entity 条件,查询全部记录 强制主键索引
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
List<T> selectListByPri(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
完整的BaseMapper
/*
* Copyright (c) 2011-2023, baomidou (jobob@qq.com).
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.baomidou.mybatisplus.core.mapper;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.Constants;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.exceptions.TooManyResultsException;
import org.apache.ibatis.session.ResultHandler;
import java.io.Serializable;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/*
:`
.:,
:::,,.
:: `::::::
::` `,:,` .:`
`:: `::::::::.:` `:';,`
::::, .:::` `@++++++++:
`` :::` @+++++++++++#
:::, #++++++++++++++`
,: `::::::;'##++++++++++
.@#@;` ::::::::::::::::::::;
#@####@, :::::::::::::::+#;::.
@@######+@:::::::::::::. #@:;
, @@########':::::::::::: .#''':`
;##@@@+:##########@::::::::::: @#;.,:.
#@@@######++++#####'::::::::: .##+,:#`
@@@@@#####+++++'#####+::::::::` ,`::@#:`
`@@@@#####++++++'#####+#':::::::::::@.
@@@@######+++++''#######+##';::::;':,`
@@@@#####+++++'''#######++++++++++`
#@@#####++++++''########++++++++'
`#@######+++++''+########+++++++;
`@@#####+++++''##########++++++,
@@######+++++'##########+++++#`
@@@@#####+++++############++++;
;#@@@@@####++++##############+++,
@@@@@@@@@@@###@###############++'
@#@@@@@@@@@@@@###################+:
`@#@@@@@@@@@@@@@@###################'`
:@#@@@@@@@@@@@@@@@@@##################,
,@@@@@@@@@@@@@@@@@@@@################;
,#@@@@@@@@@@@@@@@@@@@##############+`
.#@@@@@@@@@@@@@@@@@@#############@,
@@@@@@@@@@@@@@@@@@@###########@,
:#@@@@@@@@@@@@@@@@##########@,
`##@@@@@@@@@@@@@@@########+,
`+@@@@@@@@@@@@@@@#####@:`
`:@@@@@@@@@@@@@@##@;.
`,'@@@@##@@@+;,`
``...``
_ _ /_ _ _/_. ____ / _
/ / //_//_//_|/ /_\ /_///_/_\ Talk is cheap. Show me the code.
_/ /
*/
/**
* Mapper 继承该接口后,无需编写 mapper.xml 文件,即可获得CRUD功能
* <p>这个 Mapper 支持 id 泛型</p>
*
* mybatis 自带基础BaseMapper,只能做新增,不能做修改
*
*/
public interface BaseMapper<T> extends Mapper<T> {
/**
* 插入一条记录
*
* @param entity 实体对象
*/
int insert(T entity);
/**
* 根据 ID 删除
*
* @param id 主键ID
*/
int deleteById(Serializable id);
/**
* 根据实体(ID)删除
*
* @param entity 实体对象
* @since 3.4.4
*/
int deleteById(T entity);
/**
* 根据 columnMap 条件,删除记录
*
* @param columnMap 表字段 map 对象
*/
default int deleteByMap(Map<String, Object> columnMap) {
return this.delete(Wrappers.<T>query().allEq(columnMap));
}
/**
* 根据 entity 条件,删除记录
*
* @param queryWrapper 实体对象封装操作类(可以为 null,里面的 entity 用于生成 where 语句)
*/
int delete(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 删除(根据ID或实体 批量删除)
*
* @param idList 主键ID列表或实体列表(不能为 null 以及 empty)
*/
int deleteBatchIds(@Param(Constants.COLL) Collection<?> idList);
/**
* 根据 ID 修改
*
* @param entity 实体对象
*/
int updateById(@Param(Constants.ENTITY) T entity);
/**
* 根据 whereEntity 条件,更新记录
*
* @param entity 实体对象 (set 条件值,可以为 null)
* @param updateWrapper 实体对象封装操作类(可以为 null,里面的 entity 用于生成 where 语句)
*/
int update(@Param(Constants.ENTITY) T entity, @Param(Constants.WRAPPER) Wrapper<T> updateWrapper);
/**
* 根据 Wrapper 更新记录
*
* @param updateWrapper {@link UpdateWrapper} or {@link LambdaUpdateWrapper}
* @since 3.5.4
*/
default int update(@Param(Constants.WRAPPER) Wrapper<T> updateWrapper) {
return update(null, updateWrapper);
}
/**
* 根据 ID 查询
*
* @param id 主键ID
*/
T selectById(Serializable id);
/**
* 查询(根据ID 批量查询)
*
* @param idList 主键ID列表(不能为 null 以及 empty)
*/
List<T> selectBatchIds(@Param(Constants.COLL) Collection<? extends Serializable> idList);
/**
* 查询(根据ID 批量查询)
*
* @param idList idList 主键ID列表(不能为 null 以及 empty)
* @param resultHandler resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
void selectBatchIds(@Param(Constants.COLL) Collection<? extends Serializable> idList, ResultHandler<T> resultHandler);
/**
* 查询(根据 columnMap 条件)
*
* @param columnMap 表字段 map 对象
*/
default List<T> selectByMap(Map<String, Object> columnMap) {
return this.selectList(Wrappers.<T>query().allEq(columnMap));
}
/**
* 查询(根据 columnMap 条件)
*
* @param columnMap 表字段 map 对象
* @param resultHandler resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
default void selectByMap(Map<String, Object> columnMap, ResultHandler<T> resultHandler) {
this.selectList(Wrappers.<T>query().allEq(columnMap), resultHandler);
}
/**
* 根据 entity 条件,查询一条记录
* <p>查询一条记录,例如 qw.last("limit 1") 限制取一条记录, 注意:多条数据会报异常</p>
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
default T selectOne(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper) {
return this.selectOne(queryWrapper, true);
}
/**
* 根据 entity 条件,查询一条记录,现在会根据{@code throwEx}参数判断是否抛出异常,如果为false就直接返回一条数据
* <p>查询一条记录,例如 qw.last("limit 1") 限制取一条记录, 注意:多条数据会报异常</p>
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
* @param throwEx boolean 参数,为true如果存在多个结果直接抛出异常
*/
default T selectOne(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper, boolean throwEx) {
List<T> list = this.selectList(queryWrapper);
int size = list.size();
if (size == 1) {
return list.get(0);
} else if (size > 1) {
if (throwEx) {
throw new TooManyResultsException("Expected one result (or null) to be returned by selectOne(), but found: " + size);
}
return list.get(0);
}
return null;
}
/**
* 根据 Wrapper 条件,判断是否存在记录
*
* @param queryWrapper 实体对象封装操作类
* @return 是否存在记录
*/
default boolean exists(Wrapper<T> queryWrapper) {
Long count = this.selectCount(queryWrapper);
return null != count && count > 0;
}
/**
* 根据 Wrapper 条件,查询总记录数
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
Long selectCount(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 entity 条件,查询全部记录
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
List<T> selectList(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 entity 条件,查询全部记录 强制主键索引
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
List<T> selectListByPri(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 entity 条件,查询全部记录
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
* @param resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
void selectList(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper, ResultHandler<T> resultHandler);
/**
* 根据 entity 条件,查询全部记录(并翻页)
*
* @param page 分页查询条件
* @param queryWrapper 实体对象封装操作类(可以为 null)
* @since 3.5.3.2
*/
List<T> selectList(IPage<T> page, @Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 entity 条件,查询全部记录(并翻页)
* @param page 分页查询条件
* @param queryWrapper 实体对象封装操作类(可以为 null)
* @param resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
void selectList(IPage<T> page, @Param(Constants.WRAPPER) Wrapper<T> queryWrapper, ResultHandler<T> resultHandler);
/**
* 根据 Wrapper 条件,查询全部记录
*
* @param queryWrapper 实体对象封装操作类
*/
List<Map<String, Object>> selectMaps(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 Wrapper 条件,查询全部记录
*
* @param queryWrapper 实体对象封装操作类
* @param resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
void selectMaps(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper, ResultHandler<Map<String, Object>> resultHandler);
/**
* 根据 Wrapper 条件,查询全部记录(并翻页)
*
* @param page 分页查询条件
* @param queryWrapper 实体对象封装操作类
* @since 3.5.3.2
*/
List<Map<String, Object>> selectMaps(IPage<? extends Map<String, Object>> page, @Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 Wrapper 条件,查询全部记录(并翻页)
*
* @param page 分页查询条件
* @param queryWrapper 实体对象封装操作类
* @param resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
void selectMaps(IPage<? extends Map<String, Object>> page, @Param(Constants.WRAPPER) Wrapper<T> queryWrapper, ResultHandler<Map<String, Object>> resultHandler);
/**
* 根据 Wrapper 条件,查询全部记录
* <p>注意: 只返回第一个字段的值</p>
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
<E> List<E> selectObjs(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper);
/**
* 根据 Wrapper 条件,查询全部记录
* <p>注意: 只返回第一个字段的值</p>
*
* @param queryWrapper 实体对象封装操作类(可以为 null)
* @param resultHandler 结果处理器 {@link ResultHandler}
* @since 3.5.4
*/
<E> void selectObjs(@Param(Constants.WRAPPER) Wrapper<T> queryWrapper, ResultHandler<E> resultHandler);
/**
* 根据 entity 条件,查询全部记录(并翻页)
*
* @param page 分页查询条件
* @param queryWrapper 实体对象封装操作类(可以为 null)
*/
default <P extends IPage<T>> P selectPage(P page, @Param(Constants.WRAPPER) Wrapper<T> queryWrapper) {
page.setRecords(selectList(page, queryWrapper));
return page;
}
/**
* 根据 Wrapper 条件,查询全部记录(并翻页)
*
* @param page 分页查询条件
* @param queryWrapper 实体对象封装操作类
*/
default <P extends IPage<Map<String, Object>>> P selectMapsPage(P page, @Param(Constants.WRAPPER) Wrapper<T> queryWrapper) {
page.setRecords(selectMaps(page, queryWrapper));
return page;
}
}
3、使用
跟正常使用selectList一样,传入QueryWrapper
List<IotCardBaseInfoEntity> dbData = iotCardBaseInfoMapper.selectListByPri(Wrappers.<IotCardBaseInfoEntity>lambdaQuery()
.eq(IotCardBaseInfoEntity::getCardOutCode,buySubCode)
.eq(IotCardBaseInfoEntity::getInterCode,subOrder.getInterCode())
.eq(IotCardBaseInfoEntity::getClientAccount,subOrder.getClientAccount())
.gt(IotCardBaseInfoEntity::getICCID,iccidLast)
.last(" LIMIT " + IotManageConstant.BATCH_DB_SELECT_MAX_NUM)
);