从Https下载

/**

 *  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.

 *  

 */

import java.io.File;

import java.io.FileNotFoundException;/** from 时 代 J a v a 公 众 号**/

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLDecoder;

import java.security.KeyManagementException;

import java.security.NoSuchAlgorithmException;

import javax.net.ssl.HttpsURLConnection;

import javax.net.ssl.SSLContext;

import javax.net.ssl.X509TrustManager;


public class Main{


    public static File downloadHttps(String downloadURL, String basePath,

            String commonPathURL) throws Exception {

        enableHttpsConnection();

        /*
        n o w    j a v a  . c o m 提 供
        */

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

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


        URL url = new URL(urlDecode);

        HttpsURLConnection hurl = (HttpsURLConnection) 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;

    }

    public static void enableHttpsConnection()

            throws NoSuchAlgorithmException, KeyManagementException {

        MyX509TrustManager xtm = new MyX509TrustManager();

        MyHostnameVerifier hnv = new MyHostnameVerifier();

        SSLContext sslContext = null;

        sslContext = SSLContext.getInstance("TLS");

        X509TrustManager[] xtmArray = new X509TrustManager[] { xtm };

        sslContext.init(null, xtmArray, new java.security.SecureRandom());

        HttpsURLConnection.setDefaultSSLSocketFactory(sslContext

                .getSocketFactory());

        HttpsURLConnection.setDefaultHostnameVerifier(hnv);

    }

    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();

        }