如果指定的路径不存在。

/**
 from
* 时 代      J a v a   公   众 号 - nowjava.com 
**/

/* Copyright (c) 2011 Danish Maritime Authority.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

//package com.nowjava;

import java.nio.file.Files;

import java.nio.file.Path;


public class Main {

    /**

     * If the specified path does not exist. Returns the specified path. Otherwise returns a unique path similar to the

     * specified path.

     * 

     * @param path

     *            the patch to check

     * @return a unique path

     */

    public static Path findUnique(Path path) {

        if (!Files.exists(path)) {

            return path;

        }

        String filename = path.getFileName().toString();/** 来自 N o  w  J a v a . c o m - 时  代  Java**/

        String postfix = "";

        if (filename.contains(".")) { // has suffix

            postfix = filename.substring(filename.indexOf('.'));

            filename = filename.substring(0, filename.indexOf(