java简单查找文件或文件夹

import java.io.File; public class Search{ // file info private static StringBuffer fileInfo; // dir info private static StringBuffer dirInfo; // child file info private static File[] fm; /** * main * * @param args */ public static void main(String[] args) { // 查找目录 File dir = new File("C:/"); // 要查找的关键字 String key = "12"; // 打印文件夹信息 printAllInfo(dir); System.out.println("/nsearch key : " + key); System.out.println("search results : "); for (File file : fm) { if (file.getName().indexOf(key) >= 0) { if (file.isFile()) { System.out.println("file : " + file.getName() + " "); } else if (file.isDirectory()) { System.out.println("dir : " + file.getName() + " "); } } } } /** * print info of this directory * * @param dir */ public static void printAllInfo(File dir) { fileInfo = new StringBuffer(); dirInfo = new StringBuffer(); fm = dir.listFiles(); for (File file : fm) { if (file.isFile()) { fileInfo.append(file.getName() + " "); } else if (file.isDirectory()) { dirInfo.append(file.getName() + " "); } } System.out.println(dir.getAbsolutePath()); System.out.println("contains : "); System.out.println("file ---> " + fileInfo); System.out.println("dir ---> " + dirInfo); } }