Java File Name Extract extractFilenameFromUrlPath(String urlPath)

Description

Extract the URL filename from the given request URL path.

License

Apache License

Parameter

Parameter	Description
urlPath	the request URL path (e.g. "/index.html")

Return

the extracted URI filename (e.g. "index")

Declaration

public static String extractFilenameFromUrlPath(String urlPath) 

Method Source Code

//package com.java2s;
/*//from  ww w. jav  a  2 s  . c  o m
 * Copyright 2016 the original author or authors.
 *
 * 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.
 */

public class Main {
    /**
     * Extract the URL filename from the given request URL path.
     * Correctly resolves nested paths such as "/products/view.html" as well.
     * @param urlPath the request URL path (e.g. "/index.html")
     * @return the extracted URI filename (e.g. "index")
     */
    public static String extractFilenameFromUrlPath(String urlPath) {
        String filename = extractFullFilenameFromUrlPath(urlPath);
        int dotIndex = filename.lastIndexOf('.');
        if (dotIndex != -1) {
            filename = filename.substring(0, dotIndex);
        }
        return filename;
    }

    /**
     * Extract the full URL filename (including file extension) from the given
     * request URL path. Correctly resolve nested paths such as
     * "/products/view.html" and remove any path and or query parameters.
     * @param urlPath the request URL path (e.g. "/products/index.html")
     * @return the extracted URI filename (e.g. "index.html")
     */
    public static String extractFullFilenameFromUrlPath(String urlPath) {
        int end = urlPath.indexOf('?');
        if (end == -1) {
            end = urlPath.indexOf('#');
            if (end == -1) {
                end = urlPath.length();
            }
        }
        int begin = urlPath.lastIndexOf('/', end) + 1;
        int paramIndex = urlPath.indexOf(';', begin);
        end = (paramIndex != -1 && paramIndex < end ? paramIndex : end);
        return urlPath.substring(begin, end);
    }
}

Related

1. extractFileNameFromPath(final String filePath, char separatorChar)
2. extractFileNameFromPath(final String path)
3. extractFilenameFromPath(String path)
4. extractFilenameFromURL(String url)
5. extractFileNameFromUrl(String url)
6. extractFileNames(String[] fileNames)