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优化：优化部分空集合返回

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This commit is contained in:
Charles7c 2023-02-26 23:39:41 +08:00
parent 72e5522952
commit 6723903c62
3 changed files with 6 additions and 4 deletions
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4
continew-admin-common/src/main/java/top/charles7c/cnadmin/common/util/TreeUtils.java
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@ -16,7 +16,7 @@
package top.charles7c.cnadmin.common.util; package top.charles7c.cnadmin.common.util;
import java.util.ArrayList; import java.util.Collections;
import java.util.List; import java.util.List;
import lombok.AccessLevel; import lombok.AccessLevel;
@ -57,7 +57,7 @@ public class TreeUtils {
*/ */
public static <T, E> List<Tree<E>> build(List<T> list, NodeParser<T, E> nodeParser) { public static <T, E> List<Tree<E>> build(List<T> list, NodeParser<T, E> nodeParser) {
if (CollUtil.isEmpty(list)) { if (CollUtil.isEmpty(list)) {
return new ArrayList<>(); return Collections.emptyList();
} }
E parentId = (E)ReflectUtil.getFieldValue(list.get(0), DEFAULT_CONFIG.getParentIdKey()); E parentId = (E)ReflectUtil.getFieldValue(list.get(0), DEFAULT_CONFIG.getParentIdKey());
return TreeUtil.build(list, parentId, DEFAULT_CONFIG, nodeParser); return TreeUtil.build(list, parentId, DEFAULT_CONFIG, nodeParser);

3
continew-admin-system/src/main/java/top/charles7c/cnadmin/system/service/impl/DeptServiceImpl.java
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@ -17,6 +17,7 @@
package top.charles7c.cnadmin.system.service.impl; package top.charles7c.cnadmin.system.service.impl;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collections;
import java.util.List; import java.util.List;
import java.util.Objects; import java.util.Objects;
import java.util.stream.Collectors; import java.util.stream.Collectors;
@ -92,7 +93,7 @@ public class DeptServiceImpl extends BaseServiceImpl<DeptMapper, DeptDO, DeptVO,
@Override @Override
public List<DeptVO> buildListTree(List<DeptVO> list) { public List<DeptVO> buildListTree(List<DeptVO> list) {
if (CollUtil.isEmpty(list)) { if (CollUtil.isEmpty(list)) {
return new ArrayList<>(); return Collections.emptyList();
} }
// 去除重复子部门列表 // 去除重复子部门列表

3
continew-admin-system/src/main/java/top/charles7c/cnadmin/system/service/impl/MenuServiceImpl.java
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@ -17,6 +17,7 @@
package top.charles7c.cnadmin.system.service.impl; package top.charles7c.cnadmin.system.service.impl;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Collections;
import java.util.List; import java.util.List;
import java.util.Objects; import java.util.Objects;
import java.util.stream.Collectors; import java.util.stream.Collectors;
@ -83,7 +84,7 @@ public class MenuServiceImpl extends BaseServiceImpl<MenuMapper, MenuDO, MenuVO,
@Override @Override
public List<MenuVO> buildListTree(List<MenuVO> list) { public List<MenuVO> buildListTree(List<MenuVO> list) {
if (CollUtil.isEmpty(list)) { if (CollUtil.isEmpty(list)) {
return new ArrayList<>(); return Collections.emptyList();
} }
// 去除重复子菜单列表 // 去除重复子菜单列表