java 批量将全路径生成树型结构

你可以使用递归算法来生成树形结构。以下是一个简单的示例代码，可以将给定的文件夹路径转换为树形结构：

import java.io.File;

public class FileTree {
    private String path;

    public FileTree(String path) {
        this.path = path;
    }

    public void printTree() {
        File root = new File(path);
        if (!root.exists()) {
            System.out.println("The path does not exist!");
            return;
        }
        if (!root.isDirectory()) {
            System.out.println("The path is not a directory!");
            return;
        }
        printSubTree(root, "");
    }

    private void printSubTree(File folder, String indent) {
        System.out.println(indent + "+--" + folder.getName());
        if (folder.isDirectory()) {
            File[] files = folder.listFiles();
            if (files != null) {
                for (File file : files) {
                    if (file.isDirectory()) {
                        printSubTree(file, indent + "    ");
                    } else {
                        System.out.println(indent + "    +--" + file.getName());
                    }
                }
            }
        }
    }
}

要使用它，只需创建一个FileTree对象并调用printTree()方法：

FileTree fileTree = new FileTree("C:\\Users\\user\\Documents");
fileTree.printTree();

该方法将递归遍历文件夹并输出树形结构：

+--Documents
    +--GitHub
    |   +--desktop.ini
    |   +--README.md
    +--My Games
    |   +--desktop.ini
    |   +--Rainbow Six - Siege
    |       +--GameSettings.ini
    |       +--desktop.ini
    +--My Music
    +--My Pictures
    +--My Videos
    +--desktop.ini
    +--file.txt