Java递归生成本地文件目录(树行结构)
1.读取txt文件保存的文件目录结构
2.递归生成本地文件目录树形结构，并修改目录文件前缀进行递增
3.结果截图
4.代码
package com.zfi.server.device;import io.swagger.annotations.Api;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;@RestController
@RequestMapping("test")
@Api(tags = "test")
public class FileAddTest {public static void main(String[] args) {String txtFileName = "F://temp//questions.txt";String outputDirectory = "F://temp//output";int directoryCount = 1;int fileCount = 1;String currentDirectory = null; // 记录最近一次生成的目录名称try (BufferedReader reader = new BufferedReader(new FileReader(txtFileName))) {String line;while ((line = reader.readLine()) != null) {if (line.startsWith("-")) {// 如果是目录行，则创建目录String directoryName = String.format("%02d%s", directoryCount, line.substring(1).trim()); // 去掉前导的"-"createDirectory(outputDirectory, directoryName);currentDirectory = directoryName; // 更新最近一次生成的目录名称directoryCount++;} else {// 否则，认为是文件，将其写入当前目录if (currentDirectory != null) {String fileName = String.format("%02d%s", fileCount, line.trim()+".md");createFile(outputDirectory + File.separator + currentDirectory, fileName);fileCount++;} else {System.out.println("警告：文件 '" + line + "' 没有对应的目录。");}}}System.out.println("文件和目录生成完成。");} catch (IOException e) {System.out.println("发生异常：" + e.getMessage());e.printStackTrace();}}private static void createDirectory(String parentDir, String dirName) {File directory = new File(parentDir, dirName);if (!directory.exists()) {directory.mkdir();System.out.println("生成目录：" + directory.getAbsolutePath());} else {System.out.println("目录已存在：" + directory.getAbsolutePath());}}private static void createFile(String parentDir, String fileName) throws IOException {File file = new File(parentDir, fileName);if (!file.exists()) {file.createNewFile();System.out.println("生成文件：" + file.getAbsolutePath());} else {System.out.println("文件已存在：" + file.getAbsolutePath());}}
}
