From 5c37e4dbd8cace0612621688236fe00a5ee66486 Mon Sep 17 00:00:00 2001
From: puzhibing <393733352@qq.com>
Date: 星期三, 06 三月 2024 20:19:36 +0800
Subject: [PATCH] 修改bug
---
cloud-server-management/src/main/java/com/dsh/course/model/node/MenuNode.java | 258 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 258 insertions(+), 0 deletions(-)
diff --git a/cloud-server-management/src/main/java/com/dsh/course/model/node/MenuNode.java b/cloud-server-management/src/main/java/com/dsh/course/model/node/MenuNode.java
new file mode 100644
index 0000000..da46459
--- /dev/null
+++ b/cloud-server-management/src/main/java/com/dsh/course/model/node/MenuNode.java
@@ -0,0 +1,258 @@
+package com.dsh.course.model.node;
+
+
+import com.dsh.constant.IsMenu;
+
+import java.util.*;
+
+/**
+ * @author fengshuonan
+ * @Description 菜单的节点
+ * @date 2016年12月6日 上午11:34:17
+ */
+public class MenuNode implements Comparable {
+
+ /**
+ * 节点id
+ */
+ private Long id;
+
+ /**
+ * 父节点
+ */
+ private Long parentId;
+
+ /**
+ * 节点名称
+ */
+ private String name;
+
+ /**
+ * 按钮级别
+ */
+ private Integer levels;
+
+ /**
+ * 按钮级别
+ */
+ private Integer ismenu;
+
+ /**
+ * 按钮的排序
+ */
+ private Integer num;
+
+ /**
+ * 节点的url
+ */
+ private String url;
+
+ /**
+ * 节点图标
+ */
+ private String icon;
+
+ private String ename;
+ private String bname;
+
+ public String getEname() {
+ return ename;
+ }
+
+ public void setEname(String ename) {
+ this.ename = ename;
+ }
+
+ public String getBname() {
+ return bname;
+ }
+
+ public void setBname(String bname) {
+ this.bname = bname;
+ }
+
+ /**
+ * 子节点的集合
+ */
+ private List<MenuNode> children;
+
+ /**
+ * 查询子节点时候的临时集合
+ */
+ private List<MenuNode> linkedList = new ArrayList<MenuNode>();
+
+ public MenuNode() {
+ super();
+ }
+
+ public MenuNode(Long id, Long parentId) {
+ super();
+ this.id = id;
+ this.parentId = parentId;
+ }
+
+ public Integer getLevels() {
+ return levels;
+ }
+
+ public void setLevels(Integer levels) {
+ this.levels = levels;
+ }
+
+ public String getIcon() {
+ return icon;
+ }
+
+ public void setIcon(String icon) {
+ this.icon = icon;
+ }
+
+ public static MenuNode createRoot() {
+ return new MenuNode(0L, -1L);
+ }
+
+ public Long getId() {
+ return id;
+ }
+
+ public void setId(Long id) {
+ this.id = id;
+ }
+
+ public Long getParentId() {
+ return parentId;
+ }
+
+ public void setParentId(Long parentId) {
+ this.parentId = parentId;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public String getUrl() {
+ return url;
+ }
+
+ public void setUrl(String url) {
+ this.url = url;
+ }
+
+ public List<MenuNode> getChildren() {
+ return children;
+ }
+
+ public void setChildren(List<MenuNode> children) {
+ this.children = children;
+ }
+
+ public Integer getNum() {
+ return num;
+ }
+
+ public void setNum(Integer num) {
+ this.num = num;
+ }
+
+ public Integer getIsmenu() {
+ return ismenu;
+ }
+
+ public void setIsmenu(Integer ismenu) {
+ this.ismenu = ismenu;
+ }
+
+ @Override
+ public String toString() {
+ return "MenuNode{" +
+ "id=" + id +
+ ", parentId=" + parentId +
+ ", name='" + name + '\'' +
+ ", levels=" + levels +
+ ", num=" + num +
+ ", url='" + url + '\'' +
+ ", icon='" + icon + '\'' +
+ ", children=" + children +
+ ", linkedList=" + linkedList +
+ '}';
+ }
+
+ /**
+ * 重写排序比较接口，首先根据等级排序，然后更具排序字段排序
+ *
+ * @param o
+ * @return
+ */
+ @Override
+ public int compareTo(Object o) {
+ MenuNode menuNode = (MenuNode) o;
+ Integer num = menuNode.getNum();
+ Integer levels = menuNode.getLevels();
+ if (num == null) {
+ num = 0;
+ }
+ if (levels == null) {
+ levels = 0;
+ }
+ if (this.levels.compareTo(levels) == 0) {
+ return this.num.compareTo(num);
+ } else {
+ return this.levels.compareTo(levels);
+ }
+
+ }
+
+ /**
+ * 构建页面菜单列表
+ */
+ public static List<MenuNode> buildTitle(List<MenuNode> nodes) {
+ if (nodes.size() <= 0) {
+ return nodes;
+ }
+ //剔除非菜单
+ nodes.removeIf(node -> node.getIsmenu() != IsMenu.YES.getCode());
+ //对菜单排序，返回列表按菜单等级，序号的排序方式排列
+ Collections.sort(nodes);
+ return mergeList(nodes, nodes.get(nodes.size() - 1).getLevels(), null);
+ }
+
+ /**
+ * 递归合并数组为子数组，最后返回第一层
+ *
+ * @param menuList
+ * @param listMap
+ * @return
+ */
+ private static List<MenuNode> mergeList(List<MenuNode> menuList, int rank, Map<Long, List<MenuNode>> listMap) {
+ //保存当次调用总共合并了多少元素
+ int n;
+ //保存当次调用总共合并出来的list
+ Map<Long, List<MenuNode>> currentMap = new HashMap<>();
+ //由于按等级从小到大排序，需要从后往前排序
+ //判断该节点是否属于当前循环的等级,不等于则跳出循环
+ for (n = menuList.size() - 1; n >=0&&menuList.get(n).getLevels() == rank; n--) {
+ //判断之前的调用是否有返回以该节点的id为key的map，有则设置为children列表。
+ if (listMap != null && listMap.get(menuList.get(n).getId()) != null) {
+ menuList.get(n).setChildren(listMap.get(menuList.get(n).getId()));
+ }
+ if (menuList.get(n).getParentId()!=null&&menuList.get(n).getParentId()!=0) {
+ //判断当前节点所属的pid是否已经创建了以该pid为key的键值对，没有则创建新的链表
+ currentMap.computeIfAbsent(menuList.get(n).getParentId(), k -> new LinkedList<>());
+ //将该节点插入到对应的list的头部
+ currentMap.get(menuList.get(n).getParentId()).add(0, menuList.get(n));
+ }
+ }
+ if (n <0) {
+ return menuList;
+ } else {
+ return mergeList(menuList.subList(0, n+1), menuList.get(n).getLevels(), currentMap);
+ }
+ }
+
+
+}
--
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