Java 对于处理用户提供的资源路径（可以是相对路径，也可以是绝对路径）很有用。

欢马劈雪

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用于处理用户提供的资源路径，可以是相对路径也可以是绝对路径。

实例源码：

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* 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;
/**
N o w  J a v a  .   c o m 提供 
**/

public class Main {

public static void main(String[] argv) throws Exception {

String path = "nowjava.com";

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

}

/**

* Useful for handling user supplied paths to resources, which can be both

* relative and absolute.

* @param path

* @return An absolute path.  The resulting path is not normalized, so ../

* ./ is maintained.

public static String getPathToUse(String path) {

String pathToUse;

if (path.startsWith("/")) {
/**代码未完, 请加载全部代码(NowJava.com).**/

​x
 
​
/*
​
 * Copyright 2012 Joseph Spencer
​
 *
​
 * 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;
/**
N o w  J a v a  .   c o m 提供 
**/
​
​
public class Main {
​
    public static void main(String[] argv) throws Exception {
​
        String path = "nowjava.com";
​
        System.out.println(getPathToUse(path));
​
    }
​
​
    /**
​
     * Useful for handling user supplied paths to resources, which can be both
​
     * relative and absolute.
​
     * 
​
     * @param path
​
     * @return An absolute path.  The resulting path is not normalized, so ../ 
​
     * ./ is maintained.
​
     */
​
    public static String getPathToUse(String path) {
​
        String pathToUse;
​
        if (path.startsWith("/")) {
/**代码未完, 请加载全部代码(NowJava.com).**/