mirror of
https://github.com/continew-org/continew-starter.git
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Merge remote-tracking branch 'origin/dev' into dev
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@@ -0,0 +1,161 @@
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package top.continew.starter.core.util;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.lang.tree.Tree;
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import cn.hutool.core.lang.tree.TreeNodeConfig;
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import cn.hutool.core.lang.tree.TreeUtil;
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import cn.hutool.core.lang.tree.parser.NodeParser;
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import cn.hutool.core.text.CharSequenceUtil;
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import cn.hutool.core.util.ReflectUtil;
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import java.util.List;
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import java.util.Set;
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import java.util.function.Function;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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/**
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* 扩展 hutool TreeUtil 封装树构建
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*
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* @author Lion Li
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* @author lishuyan
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*/
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public class TreeBuildUtils extends TreeUtil {
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private TreeBuildUtils() {
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}
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/**
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* 构建树形结构
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*
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* @param <T> 输入节点的类型
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* @param <K> 节点ID的类型
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* @param list 节点列表,其中包含了要构建树形结构的所有节点
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* @param nodeParser 解析器,用于将输入节点转换为树节点
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* @return 构建好的树形结构列表
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*/
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public static <T, K> List<Tree<K>> build(List<T> list, NodeParser<T, K> nodeParser) {
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if (CollUtil.isEmpty(list)) {
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return CollUtil.newArrayList();
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}
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K k = ReflectUtil.invoke(list.get(0), CharSequenceUtil.genGetter("parentId"));
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return TreeUtil.build(list, k, TreeNodeConfig.DEFAULT_CONFIG, nodeParser);
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}
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/**
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* 构建树形结构
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*
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* @param <T> 输入节点的类型
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* @param <K> 节点ID的类型
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* @param parentId 顶级节点
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* @param list 节点列表,其中包含了要构建树形结构的所有节点
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* @param nodeParser 解析器,用于将输入节点转换为树节点
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* @return 构建好的树形结构列表
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*/
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public static <T, K> List<Tree<K>> build(List<T> list, K parentId, NodeParser<T, K> nodeParser) {
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if (CollUtil.isEmpty(list)) {
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return CollUtil.newArrayList();
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}
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return TreeUtil.build(list, parentId, TreeNodeConfig.DEFAULT_CONFIG, nodeParser);
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}
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/**
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* 构建树形结构
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*
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* @param <T> 输入节点的类型
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* @param <K> 节点ID的类型
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* @param list 节点列表,其中包含了要构建树形结构的所有节点
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* @param parentId 顶级节点
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* @param treeNodeConfig 树节点配置
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* @param nodeParser 解析器,用于将输入节点转换为树节点
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* @return 构建好的树形结构列表
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*/
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public static <T, K> List<Tree<K>> build(List<T> list, K parentId, TreeNodeConfig treeNodeConfig, NodeParser<T, K> nodeParser) {
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if (CollUtil.isEmpty(list)) {
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return CollUtil.newArrayList();
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}
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return TreeUtil.build(list, parentId, treeNodeConfig, nodeParser);
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}
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/**
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* 构建多根节点的树结构(支持多个顶级节点)
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*
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* @param list 原始数据列表
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* @param getId 获取节点 ID 的方法引用,例如:node -> node.getId()
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* @param getParentId 获取节点父级 ID 的方法引用,例如:node -> node.getParentId()
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* @param parser 树节点属性映射器,用于将原始节点 T 转为 Tree 节点
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* @param <T> 原始数据类型(如实体类、DTO 等)
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* @param <K> 节点 ID 类型(如 Long、String)
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* @return 构建完成的树形结构(可能包含多个顶级根节点)
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*/
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public static <T, K> List<Tree<K>> buildMultiRoot(List<T> list, Function<T, K> getId, Function<T, K> getParentId, NodeParser<T, K> parser) {
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if (CollUtil.isEmpty(list)) {
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return CollUtil.newArrayList();
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}
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Set<K> rootParentIds = CollUtils.mapToSet(list, getParentId);
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rootParentIds.removeAll(CollUtils.mapToSet(list, getId));
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// 构建每一个根 parentId 下的树,并合并成最终结果列表
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return rootParentIds.stream()
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.flatMap(rootParentId -> TreeUtil.build(list, rootParentId, parser).stream())
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.collect(Collectors.toList());
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}
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/**
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* 构建多根节点的树结构(支持多个顶级节点)
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*
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* @param <T> 原始数据类型(如实体类、DTO 等)
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* @param <K> 节点 ID 类型(如 Long、String)
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* @param list 原始数据列表
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* @param getId 获取节点 ID 的方法引用,例如:node -> node.getId()
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* @param getParentId 获取节点父级 ID 的方法引用,例如:node -> node.getParentId()
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* @param treeNodeConfig 树节点配置
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* @param parser 树节点属性映射器,用于将原始节点 T 转为 Tree 节点
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* @return 构建完成的树形结构(可能包含多个顶级根节点)
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*/
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public static <T, K> List<Tree<K>> buildMultiRoot(List<T> list, Function<T, K> getId, Function<T, K> getParentId,
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TreeNodeConfig treeNodeConfig, NodeParser<T, K> parser) {
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if (CollUtil.isEmpty(list)) {
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return CollUtil.newArrayList();
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}
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Set<K> rootParentIds = CollUtils.mapToSet(list, getParentId);
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rootParentIds.removeAll(CollUtils.mapToSet(list, getId));
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// 构建每一个根 parentId 下的树,并合并成最终结果列表
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return rootParentIds.stream()
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.flatMap(rootParentId -> TreeUtil.build(list, rootParentId, treeNodeConfig, parser).stream())
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.collect(Collectors.toList());
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}
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/**
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* 获取节点列表中所有节点的叶子节点
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*
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* @param <K> 节点ID的类型
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* @param nodes 节点列表
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* @return 包含所有叶子节点的列表
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*/
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public static <K> List<Tree<K>> getLeafNodes(List<Tree<K>> nodes) {
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if (CollUtil.isEmpty(nodes)) {
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return CollUtil.newArrayList();
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}
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return nodes.stream()
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.flatMap(TreeBuildUtils::extractLeafNodes)
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.collect(Collectors.toList());
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}
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/**
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* 获取指定节点下的所有叶子节点
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*
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* @param <K> 节点ID的类型
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* @param node 要查找叶子节点的根节点
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* @return 包含所有叶子节点的列表
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*/
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private static <K> Stream<Tree<K>> extractLeafNodes(Tree<K> node) {
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if (!node.hasChild()) {
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return Stream.of(node);
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} else {
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// 递归调用,获取所有子节点的叶子节点
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return node.getChildren().stream()
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.flatMap(TreeBuildUtils::extractLeafNodes);
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}
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}
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}
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@@ -61,10 +61,6 @@ public interface CrudService<L, D, Q, C> {
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/**
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* 查询树列表
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* <p>
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* 虽然提供了查询条件,但不建议使用,容易因缺失根节点导致树节点丢失。
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* 建议在前端进行查询过滤,如需使用建议重写方法。
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* </p>
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*
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* @param query 查询条件
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* @param sortQuery 排序查询条件
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@@ -22,7 +22,6 @@ import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.convert.Convert;
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import cn.hutool.core.lang.tree.Tree;
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import cn.hutool.core.lang.tree.TreeNodeConfig;
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import cn.hutool.core.lang.tree.TreeUtil;
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import cn.hutool.core.map.MapUtil;
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import cn.hutool.core.text.CharSequenceUtil;
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import cn.hutool.core.util.ReflectUtil;
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@@ -36,9 +35,13 @@ import org.springframework.transaction.annotation.Transactional;
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import top.continew.starter.core.constant.StringConstants;
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import top.continew.starter.core.util.ClassUtils;
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import top.continew.starter.core.util.ReflectUtils;
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import top.continew.starter.core.util.TreeBuildUtils;
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import top.continew.starter.core.util.validation.CheckUtils;
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import top.continew.starter.core.util.validation.ValidationUtils;
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import top.continew.starter.data.mapper.BaseMapper;
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import top.continew.starter.data.service.impl.ServiceImpl;
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import top.continew.starter.data.util.QueryWrapperHelper;
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import top.continew.starter.excel.util.ExcelUtils;
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import top.continew.starter.extension.crud.annotation.DictModel;
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import top.continew.starter.extension.crud.annotation.TreeField;
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import top.continew.starter.extension.crud.autoconfigure.CrudProperties;
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@@ -48,12 +51,13 @@ import top.continew.starter.extension.crud.model.query.PageQuery;
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import top.continew.starter.extension.crud.model.query.SortQuery;
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import top.continew.starter.extension.crud.model.resp.LabelValueResp;
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import top.continew.starter.extension.crud.model.resp.PageResp;
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import top.continew.starter.excel.util.ExcelUtils;
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import top.continew.starter.core.util.validation.CheckUtils;
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import top.continew.starter.core.util.validation.ValidationUtils;
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import java.lang.invoke.MethodHandleProxies;
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import java.lang.invoke.MethodHandles;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.util.*;
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import java.util.function.Function;
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/**
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* CRUD 业务实现基类
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@@ -100,20 +104,16 @@ public abstract class CrudServiceImpl<M extends BaseMapper<T>, T extends BaseIdD
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CrudProperties crudProperties = SpringUtil.getBean(CrudProperties.class);
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CrudTreeProperties treeProperties = crudProperties.getTree();
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TreeField treeField = listClass.getDeclaredAnnotation(TreeField.class);
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TreeNodeConfig treeNodeConfig;
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Long rootId;
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// 简单树(下拉列表)使用全局配置结构,复杂树(表格)使用局部配置
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if (isSimple) {
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treeNodeConfig = treeProperties.genTreeNodeConfig();
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rootId = treeProperties.getRootId();
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} else {
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treeNodeConfig = treeProperties.genTreeNodeConfig(treeField);
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rootId = treeField.rootId();
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}
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TreeNodeConfig treeNodeConfig = isSimple ? treeProperties.genTreeNodeConfig() : treeProperties.genTreeNodeConfig(treeField);
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String valueGetter = CharSequenceUtil.genGetter(treeField.value());
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String parentIdKeyGetter = CharSequenceUtil.genGetter(treeField.parentIdKey());
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Function<L, Long> getId = createMethodReference(listClass, valueGetter);
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Function<L, Long> getParentId = createMethodReference(listClass, parentIdKeyGetter);
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// 构建树
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return TreeUtil.build(list, rootId, treeNodeConfig, (node, tree) -> {
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tree.setId(ReflectUtil.invoke(node, CharSequenceUtil.genGetter(treeField.value())));
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tree.setParentId(ReflectUtil.invoke(node, CharSequenceUtil.genGetter(treeField.parentIdKey())));
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return TreeBuildUtils.buildMultiRoot(list, getId, getParentId, treeNodeConfig, (node, tree) -> {
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tree.setId(ReflectUtil.invoke(node, valueGetter));
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tree.setParentId(ReflectUtil.invoke(node, parentIdKeyGetter));
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tree.setName(ReflectUtil.invoke(node, CharSequenceUtil.genGetter(treeField.nameKey())));
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tree.setWeight(ReflectUtil.invoke(node, CharSequenceUtil.genGetter(treeField.weightKey())));
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// 如果构建简单树结构,则不包含扩展字段
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@@ -127,6 +127,26 @@ public abstract class CrudServiceImpl<M extends BaseMapper<T>, T extends BaseIdD
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});
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}
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/**
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* 通过反射创建方法引用
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*
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* @param clazz 实体类类型
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* @param methodName 方法名
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* @param <T> 实体类类型
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* @param <K> 返回值类型
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* @return Function<T, K> 方法引用
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*/
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@SuppressWarnings("unchecked")
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public static <T, K> Function<T, K> createMethodReference(Class<T> clazz, String methodName) {
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try {
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Method method = clazz.getDeclaredMethod(methodName);
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method.setAccessible(true);
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return MethodHandleProxies.asInterfaceInstance(Function.class, MethodHandles.lookup().unreflect(method));
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} catch (Exception e) {
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throw new RuntimeException("Failed to create method reference for " + methodName, e);
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}
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}
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@Override
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public D get(Long id) {
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T entity = super.getById(id, false);
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