递归遍历本地目录，并以树的形式打印出来

package com.direc.common;

import java.io.File;

public class Test {
static int k = 0;  //级数
static String fpath = "绝对路径c:\\xxx\\xx";
public static void getAllFiles(File path) {
File f = new File(path.getPath());
File[] files = f.listFiles();
for (int i = 0; i < files.length; i++) {
int s = 	getK(files[i],fpath);
//  System.out.println(s);     //级数
if(files[i].getParent().equals(   //判断为所选根目录
fpath)){
k = 0;
}
if (files[i].isDirectory()) {
String str = null;
if(files[i].getParent().equals(  //所选目录为根目录则直接赋值
fpath)){
str =  files[i].getName();
}else{
str = "|-" + files[i].getName();
for (int j = 0; j < k; j++) {
str = " " + str;
}
}
System.out.println(str);
k=0;
Test.getAllFiles(files[i]);
} else {
if (!files[i].getParent().equals(
fpath)) {
String str = "|-" + files[i].getName();
for(int j = 0;j<k;j++){
str = " "+str;
}
System.out.println(str);
} else {
System.out.println(files[i].getName()); //根目录下为单文件，则直接输出
}
k=0;
}
}

}

public static int getK(File f ,String fpath){   //获取层级
if(f.getParent().equals(fpath)){
return k;

}else{
k++;
File fk = f.getParentFile();
getK(fk,fpath);

}
return k;
}

public static void main(String[] args) {
File file = new File(fpath);
getAllFiles(file);

}
}