From fe76b12b8cd3abcb233d0d7d1060013109f47341 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=A1=BE=E6=8C=BD?= <ovo@ovo.com>
Date: Wed, 13 Nov 2024 18:25:40 +0800
Subject: [PATCH] =?UTF-8?q?=E9=A1=BE=E6=8C=BD11.13?=
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---
 .../service/impl/SystemUsersServiceImpl.java  | 32 +++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/login/src/main/java/com/guwan/service/impl/SystemUsersServiceImpl.java b/login/src/main/java/com/guwan/service/impl/SystemUsersServiceImpl.java
index 2105a17..f74643a 100644
--- a/login/src/main/java/com/guwan/service/impl/SystemUsersServiceImpl.java
+++ b/login/src/main/java/com/guwan/service/impl/SystemUsersServiceImpl.java
@@ -9,7 +9,10 @@ import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 import service.SystemUsersService;
 
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 /**
 * @author 12455
@@ -77,7 +80,7 @@ public class SystemUsersServiceImpl extends ServiceImpl<SystemUsersMapper, Syste
 
         //  System.out.println("systemMenus = " + systemMenus);
 
-        systemMenus.stream().filter(systemMenu -> !systemMenu.getDeleted() && systemMenu.getVisible())
+      /*  systemMenus.stream().filter(systemMenu -> !systemMenu.getDeleted() && systemMenu.getVisible())
                 .map(systemMenu -> {
 
                     // 角色码列表
@@ -93,11 +96,36 @@ public class SystemUsersServiceImpl extends ServiceImpl<SystemUsersMapper, Syste
 
                     return null;
 
-                }).distinct().toList();
+                }).distinct().toList();*/
+
+        System.out.println("systemMenus = " + buildMenuTree(systemMenus));
 
 
 
     }
+
+    // 方法：将菜单列表构建为树形结构
+    public static List<SystemMenu> buildMenuTree(List<SystemMenu> menuList) {
+        // 以 parentId 分组菜单
+        Map<Long, List<SystemMenu>> parentIdMap = menuList.stream()
+                .collect(Collectors.groupingBy(SystemMenu::getParentId));
+
+        // 从根节点（parentId 为 null 或 0）递归构建树
+        return buildTree(parentIdMap, 0L); // 假设顶级节点 parentId 为 0
+    }
+
+    // 递归构建树形结构
+    private static List<SystemMenu> buildTree(Map<Long, List<SystemMenu>> parentIdMap, Long parentId) {
+        List<SystemMenu> children = parentIdMap.getOrDefault(parentId, new ArrayList<>());
+
+        for (SystemMenu menu : children) {
+            // 递归设置子菜单
+            menu.setChildren(buildTree(parentIdMap, menu.getId()));
+        }
+
+        return children;
+    }
+
 }