文件查找(备注)
package cn.demo.action;import java.io.BufferedReader;import java.io.File;import java.io.FileFilter;import java.io.IOException;import java.io.InputStreamReader;public class Test implements FileFilter{//先判断操作系统，true为window系统否则为liunx系统public static boolean isWindowsOS(){ boolean isWindowsOS = false; String osName = System.getProperty("os.name"); if(osName.toLowerCase().indexOf("windows")>-1){ isWindowsOS = true; } return isWindowsOS; }/** * @param args * @throws IOException*/public static void main(String[] args) throws IOException {// TODO Auto-generated method stub File[] roots=File.listRoots(); for(int i=0;i< roots.length;i++){ System.out.println(roots.getPath()); } System.out.println("请输入要查找的盘："); BufferedReader in1 = new BufferedReader(new InputStreamReader(System.in)); String filename1 = in1.readLine(); File file1 = new File(filename1); File[] fox = file1.listFiles(); String[] filelist1 = file1.list(); int length1; try { length1 = filelist1.length; } catch (NullPointerException e) { throw new NullPointerException("错误：没有输入正确的要查找的文件所在盘"); } //输入文件或文件夹 System.out.println("请输入要查找的文件或文件夹："); BufferedReader in2 = new BufferedReader(new InputStreamReader(System.in)); String filename2 = in2.readLine(); File file2 = new File(filename1); String[] filelist2 = file2.list(); //查找文件或文件夹 int f = 0; for (int i = 0; i < length1; i++) { if (filelist1.indexOf(filename2) >= 0) { System.out.println(fox); f++; } } if (f <= 0) { System.out.println("没有你要找的文件"); } }public boolean accept(File pathname) {return false;}}
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