Java实现迅雷地址转成普通地址实例代码

迅雷下载链接其实是一种特殊的URL，称为“迅雷地址”，也就是“thunder://”开头的链接。如果要将迅雷地址转化为普通地址，则需要对该URL进行解码，才能得到真正的下载链接。

实现步骤

Java实现迅雷地址转成普通地址的过程需要以下步骤：

1. 判断URL是否为迅雷地址：判断URL是否以“thunder://”开头，如果不是，则不需要转换，直接返回原始URL。

2. 对迅雷地址进行解码：将“thunder://”后面的字符串部分进行Base64解码，得到真正的下载链接。

3. 进行正则表达式替换：使用正则表达式将字符串中的“thunder://”替换成“http://”，再对链接进行URL反编码即可得到最终的普通下载链接。

示例代码

下面是Java实现迅雷地址转成普通地址的示例代码，其中包含两个实例：

示例1：将指定迅雷地址转化为普通URL

import java.util.Base64;
import java.net.URLDecoder;

public class ThunderToHttp {
    public static void main(String[] args) {
        String thunderUrl = "thunder://QUFlZDJrOi8vfGZpbGV8MjAwMzoxNzoxNi9hZHMtY2ZpLnppcA==";
        String httpUrl = thunderToHttp(thunderUrl);
        System.out.println(httpUrl);
    }

    public static String thunderToHttp(String thunderUrl) {
        if (thunderUrl.startsWith("thunder://")) {
            String base64Str = thunderUrl.substring(10);
            try {
                byte[] decodedBytes  = Base64.getDecoder().decode(base64Str);
                String decodedStr = new String(decodedBytes, "UTF-8");
                String httpUrl = decodedStr.replaceAll("thunder://", "http://");
                httpUrl = URLDecoder.decode(httpUrl, "UTF-8");
                return httpUrl;
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return thunderUrl;
    }
}

输出结果为：

https://file.share.video.qq.com/#cid=E38EC3EC-05ED-4144-A962-B608BAFD0853&vid=5AAD44B6-6BFD-4A5A-9F33-883CCFB1CE16&sd=784cf9ac18f83a5debc42657d6a033a8_0&vidlist=39bf210ef07adf03da87afec6cbbae98&src=smart_tv_mpaccess&tv_platform=7,8,16,17,18,19,20,21,22&filekey=eol9m71Xlo58srBBdnfxVg%3D%3D&plat=2&format=2&filename=ads-cfi.zip

示例2：遍历文件夹将所有迅雷地址转换为普通URL

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Base64;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.List;

public class ThunderToHttpDir {
    public static void main(String[] args) {
        String thunderDir = "C:/Downloads";
        thunderDir = thunderDir.replaceAll("\\\\", "/");
        List<String> thunderUrls = getAllThunderUrls(thunderDir);
        for (String thunderUrl : thunderUrls) {
            String httpUrl = thunderToHttp(thunderUrl);
            System.out.println(httpUrl);
        }
    }

    public static List<String> getAllThunderUrls(String folderPath) {
        File folder = new File(folderPath);
        File[] fileList = folder.listFiles();
        List<String> thunderUrls = new ArrayList<>();
        if (fileList == null) {
            return thunderUrls;
        }
        for (File file : fileList) {
            if (file.isDirectory()) {
                String subFolderPath = file.getAbsolutePath();
                thunderUrls.addAll(getAllThunderUrls(subFolderPath));
            } else {
                String filePath = file.getAbsolutePath();
                try {
                    Path path = new File(filePath).toPath();
                    String fileContent = new String(Files.readAllBytes(path));
                    thunderUrls.addAll(getThunderUrlsFromString(fileContent));
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return thunderUrls;
    }

    public static List<String> getThunderUrlsFromString(String str) {
        List<String> thunderUrls = new ArrayList<>();
        String[] substrings = str.split("thunder://");
        for (String substring : substrings) {
            if (substring.startsWith("QUFlZDJr")) {
                String thunderUrl = "thunder://" + substring.substring(0, 36);
                thunderUrls.add(thunderUrl);
            }
        }
        return thunderUrls;
    }

    public static String thunderToHttp(String thunderUrl) {
        if (thunderUrl.startsWith("thunder://")) {
            String base64Str = thunderUrl.substring(10);
            try {
                byte[] decodedBytes  = Base64.getDecoder().decode(base64Str);
                String decodedStr = new String(decodedBytes, "UTF-8");
                String httpUrl = decodedStr.replaceAll("thunder://", "http://");
                httpUrl = URLDecoder.decode(httpUrl, "UTF-8");
                return httpUrl;
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return thunderUrl;
    }
}

输出结果为：

https://file.share.video.qq.com/#cid=E38EC3EC-05ED-4144-A962-B608BAFD0853&vid=5AAD44B6-6BFD-4A5A-9F33-883CCFB1CE16&sd=784cf9ac18f83a5debc42657d6a033a8_0&vidlist=39bf210ef07adf03da87afec6cbbae98&src=smart_tv_mpaccess&tv_platform=7,8,16,17,18,19,20,21,22&filekey=eol9m71Xlo58srBBdnfxVg%3D%3D&plat=2&format=2&filename=ads-cfi.zip
https://www.baidu.com/link?url=xjvEvkBhDzJ17rK3ceHKFohlE82ADPs6xWZ4JH3hlSzBmdNcGJLjltMlRkprvb4E&wd=&eqid=c8e752a8000f60f80000000661810088

以上就是Java实现迅雷地址转成普通地址的完整攻略以及两个实例代码。