路径操作

import java.io.File;//from 时   代     Java  公  众  号 - nowjava.com

import java.io.IOException;

import java.net.URI;

import java.nio.file.Files;

import java.nio.file.LinkOption;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Spliterator;

import java.util.stream.Stream;

import java.util.stream.StreamSupport;


/**

 * Created by Hernan Y.Ke on 2015/11/2.

 */

public class Pathtest {

    public static void main(String[] args){

    Path path = Paths.get("C:",System.getProperty("user.name"), "download");

    System.out.println(path);

    Path filepath1 = Paths.get("CP1", "test.txt");

    Path filepath2 = Paths.get("CP1", "test2.txt");

    System.out.println(path.getRoot()); //Does not exist if no C:\

    System.out.println(path.subpath(0,2));

    System.out.println(path.getParent());

    URI uri = path.toUri();//来自 n o w j a v a . c o m

    System.out.println(uri);

    System.out.println(filepath1.getRoot());//Does not exist.

    System.out.println(filepath1.getFileName());


    //path -> file

    File f = path.toFile();

    try {

        System.out.println(filepath1.toRealPath(LinkOption.NOFOLLOW_LINKS));//absolute links

    } catch (IOException e) {

        e.printStackTrace();

    }

    try {

        Stream<String> lines = Files.lines(filepath1);

        lines.forEach(System.out::println);

    }catch(IOException e){

        e.printStackTrace();

    }



    //Combine path

    System.out.println(path.resolve("test.txt"));

    //resolvesbiling

    System.out.println(path.resolveSibling("downloadnew"));

    //relativize. How to navigate from path1 to path2

    System.out.println(filepath1.relativize(path.getFileName()));


    try {

        //compare two paths, do not use equals method

        System.out.println(filepath1);

        System.out.println(fil