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update 修改 基础方法返回空判断 优化返回值

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疯狂的狮子li 2021-12-16 10:54:26 +08:00
parent ffde310d30
commit c2e28b5d94
1 changed files with 17 additions and 6 deletions
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23
ruoyi-common/src/main/java/com/ruoyi/common/core/mybatisplus/core/BaseMapperPlus.java
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@ -1,5 +1,7 @@
package com.ruoyi.common.core.mybatisplus.core;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.ObjectUtil;
import com.baomidou.mybatisplus.core.conditions.Wrapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
@ -30,6 +32,9 @@ public interface BaseMapperPlus<T> extends BaseMapper<T> {
*/
default <V> V selectVoById(Serializable id, Class<V> voClass){
T obj = this.selectById(id);
if (ObjectUtil.isNull(obj)) {
return null;
}
return BeanCopyUtils.copy(obj, voClass);
}
@ -38,8 +43,8 @@ public interface BaseMapperPlus<T> extends BaseMapper<T> {
*/
default <V> List<V> selectVoBatchIds(Collection<? extends Serializable> idList, Class<V> voClass){
List<T> list = this.selectBatchIds(idList);
if (list == null) {
return null;
if (CollUtil.isEmpty(list)) {
return CollUtil.newArrayList();
}
return BeanCopyUtils.copyList(list, voClass);
}
@ -49,8 +54,8 @@ public interface BaseMapperPlus<T> extends BaseMapper<T> {
*/
default <V> List<V> selectVoByMap(Map<String, Object> map, Class<V> voClass){
List<T> list = this.selectByMap(map);
if (list == null) {
return null;
if (CollUtil.isEmpty(list)) {
return CollUtil.newArrayList();
}
return BeanCopyUtils.copyList(list, voClass);
}
@ -60,6 +65,9 @@ public interface BaseMapperPlus<T> extends BaseMapper<T> {
*/
default <V> V selectVoOne(Wrapper<T> wrapper, Class<V> voClass) {
T obj = this.selectOne(wrapper);
if (ObjectUtil.isNull(obj)) {
return null;
}
return BeanCopyUtils.copy(obj, voClass);
}
@ -68,8 +76,8 @@ public interface BaseMapperPlus<T> extends BaseMapper<T> {
*/
default <V> List<V> selectVoList(Wrapper<T> wrapper, Class<V> voClass) {
List<T> list = this.selectList(wrapper);
if (list == null) {
return null;
if (CollUtil.isEmpty(list)) {
return CollUtil.newArrayList();
}
return BeanCopyUtils.copyList(list, voClass);
}
@ -80,6 +88,9 @@ public interface BaseMapperPlus<T> extends BaseMapper<T> {
default <V, P extends IPage<V>> P selectVoPage(IPage<T> page, Wrapper<T> wrapper, Class<V> voClass) {
IPage<T> pageData = this.selectPage(page, wrapper);
IPage<V> voPage = new Page<>(pageData.getCurrent(), pageData.getSize(), pageData.getTotal());
if (CollUtil.isEmpty(pageData.getRecords())) {
return (P) voPage;
}
voPage.setRecords(BeanCopyUtils.copyList(pageData.getRecords(), voClass));
return (P) voPage;
}