下载Http URL并获取文件名

/**

 *  Copyright 2009, 2011 Welocalize, Inc. 

 *  

 *  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.io.File;

import java.io.FileNotFoundException;/**来自 N o w J a v a . c o m - 时  代  Java**/

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLDecoder;


public class Main {



    public static File downloadHttp(String downloadURL, String basePath,// 来 自 时代Java - nowjava.com

            String commonPathURL) throws Exception {

        String urlDecode = URLDecoder.decode(downloadURL, "UTF-8")

                .replaceAll("\\\\", "/");

        urlDecode = urlDecode.replace(" ", "%20");


        URL url = new URL(urlDecode);

        HttpURLConnection hurl = (HttpURLConnection) url.openConnection();

        hurl.connect();

        InputStream is = hurl.getInputStream();


        String realPath = URLDecoder.decode(commonPathURL, "UTF-8")

                .replaceAll("\\\\", "/").replace(" ", "%20");

        realPath = realPath.replace("%20", " ");


        String fullPath = getFileName(realPath, basePath);

        File file = new File(fullPath);

        saveFile(is, file);


        return file;

    }


    private static String getFileName(String url, String basePath)

            throws Exception {

        String[] url1 = url.split("cxedocs");

        String after = url1[1];

        String before = basePath;

        if (before == null) {

            before = new File(".").getAbsolutePath();

        }

        String fileName = before + after;

        return fileName;

    }


    private static void sa