update 优化 TreeBuildUtils 工具 使用反射自动获取顶级父id

ruoyi-common/src/main/java/com/ruoyi/common/utils/TreeBuildUtils.java

@@ -1,9 +1,11 @@
 package com.ruoyi.common.utils;
 
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.lang.tree.Tree;
 import cn.hutool.core.lang.tree.TreeNodeConfig;
 import cn.hutool.core.lang.tree.TreeUtil;
 import cn.hutool.core.lang.tree.parser.NodeParser;
+import com.ruoyi.common.utils.reflect.ReflectUtils;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 
@@ -22,8 +24,12 @@ public class TreeBuildUtils extends TreeUtil {
      */
     public static final TreeNodeConfig DEFAULT_CONFIG = TreeNodeConfig.DEFAULT_CONFIG.setNameKey("label");
 
-    public static <T> List<Tree<Long>> build(List<T> list, Long parentId, NodeParser<T, Long> nodeParser) {
-        return TreeUtil.build(list, parentId, DEFAULT_CONFIG, nodeParser);
+    public static <T, K> List<Tree<K>> build(List<T> list, NodeParser<T, K> nodeParser) {
+        if (CollUtil.isEmpty(list)) {
+            return null;
+        }
+        K k = ReflectUtils.invokeGetter(list.get(0), "parentId");
+        return TreeUtil.build(list, k, DEFAULT_CONFIG, nodeParser);
     }
 
 }

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysDeptServiceImpl.java

@@ -60,8 +60,7 @@ public class SysDeptServiceImpl implements ISysDeptService {
         if (CollUtil.isEmpty(depts)) {
             return CollUtil.newArrayList();
         }
-        Long parentId = depts.get(0).getParentId();
-        return TreeBuildUtils.build(depts, parentId, (dept, tree) ->
+        return TreeBuildUtils.build(depts, (dept, tree) ->
             tree.setId(dept.getDeptId())
                 .setParentId(dept.getParentId())
                 .setName(dept.getDeptName())

ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysMenuServiceImpl.java

@@ -181,8 +181,7 @@ public class SysMenuServiceImpl implements ISysMenuService {
         if (CollUtil.isEmpty(menus)) {
             return CollUtil.newArrayList();
         }
-        Long parentId = menus.get(0).getParentId();
-        return TreeBuildUtils.build(menus, parentId, (menu, tree) ->
+        return TreeBuildUtils.build(menus, (menu, tree) ->
             tree.setId(menu.getMenuId())
                 .setParentId(menu.getParentId())
                 .setName(menu.getMenuName())