Java深度遍历文件夹(递归实现)

 package FileDemo;

 import java.io.File;

 public class DeepSearchDir {

     /**
      * @param args
      */
     public static void main(String[] args) {
         File dir=new File("F:\\");

         listDir(dir,0);
     }

     private static void listDir(File dir,int level) {
         System.out.println(getspace(level)+dir.getName());
         File files[]=dir.listFiles();
         level++;
         for(File f:files){
             if(f.isDirectory()){
                 listDir(f,level);
             }
             else {
                 System.out.println(getspace(level)+f.getName());
             }
         }
     }

     private static String getspace(int level) {

         StringBuilder sb=new StringBuilder();
         sb.append("|--");
         for(int x=0;x<level;x++){
             sb.insert(0,"    ");
         }
         return sb.toString();
     }

 }