Java实现超简单抖音去水印的示例详解

目录

  • 一、前言
  • 二、原理与步骤
  • 三、代码实现
  • 四、总结

一、前言 抖音去水印方法很简单,以前一直没有去研究,以为搞个去水印还要用到算法去除,直到动手的时候才发现这么简单,不用编程基础都能做。

二、原理与步骤 其实抖音它是有一个隐藏无水印地址的,只要我们找到那个地址就可以了
1、我们在抖音找一个想要去水印的视频链接
注意:这里一定要是https开头的,不是口令
打开浏览器访问:
Java实现超简单抖音去水印的示例详解
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访问之后会重定向到这个地址,后面有一串数字,这个就是视频的id,他是根据这个唯一id来找到视频播放的
Java实现超简单抖音去水印的示例详解
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按F12查看网络请求,找到刚刚复制的那个请求地址,在响应头里有一个location链接,访问location的链接
https://www.iesdouyin.com/share/video/7064781119429807363/
在F12中有许多请求,查看众多的请求里有一个请求是:
请求太多没找到可以直接跳过,直接看:https://aweme.snssdk.com 这个就行了,把id替换一下
https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids=7064781119429807363
把这个请求再次用浏览器访问,然后返回了一大串json数据,一直放下翻可以找到这个链接
https://aweme.snssdk.com/aweme/v1/playwm/?video_id=v0200fg10000c85i9ejc77ue0kb2vo80&ratio=720p&line=0
【Java实现超简单抖音去水印的示例详解】Java实现超简单抖音去水印的示例详解
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直接用那个链接访问,他其实是一个有水印的链接,仔细观察发现最后那里有一段/playwm,有两个字母wm其实就是watermark英语单词的缩写,去掉wm后就能得到一个无水印链接了
https://aweme.snssdk.com/aweme/v1/play/?video_id=v0200fg10000c85i9ejc77ue0kb2vo80&ratio=720p&line=0
Java实现超简单抖音去水印的示例详解
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到这里无水印已经完成了

三、代码实现 这里我用的是Java去实现,这个跟语言无关,只要能发请求就行
/** * 下载抖音无水印视频 * * @throws IOException */@GetMapping(value = "https://www.it610.com/downloadDy")public void downloadDy(String dyUrl, HttpServletResponse response) throws IOException {ResultDto resultDto = new ResultDto(); try {dyUrl = URLDecoder.decode(dyUrl).replace("dyUrl=", ""); resultDto = dyParseUrl(dyUrl); } catch (Exception e) {e.printStackTrace(); }if (resultDto.getVideoUrl().contains("http://")) {resultDto.setVideoUrl(resultDto.getVideoUrl().replace("http://", "https://")); }String videoUrl = resultDto.getVideoUrl(); response.sendRedirect(videoUrl); } public ResultDto dyParseUrl(String redirectUrl) throws Exception {redirectUrl = CommonUtils.getLocation(redirectUrl); ResultDto dyDto = new ResultDto(); if (!StringUtils.isEmpty(redirectUrl)) {/*** 1、用 ItemId 拿视频的详细信息,包括无水印视频url*/String itemId = CommonUtils.matchNo(redirectUrl); StringBuilder sb = new StringBuilder(); sb.append(CommonUtils.DOU_YIN_BASE_URL).append(itemId); String videoResult = CommonUtils.httpGet(sb.toString()); DYResult dyResult = JSON.parseObject(videoResult, DYResult.class); /*** 2、无水印视频 url*/String videoUrl = dyResult.getItem_list().get(0).getVideo().getPlay_addr().getUrl_list().get(0).replace("playwm", "play"); String videoRedirectUrl = CommonUtils.getLocation(videoUrl); dyDto.setVideoUrl(videoRedirectUrl); /*** 3、音频 url*/String musicUrl = dyResult.getItem_list().get(0).getMusic().getPlay_url().getUri(); dyDto.setMusicUrl(musicUrl); /*** 4、封面*/String videoPic = dyResult.getItem_list().get(0).getVideo().getDynamic_cover().getUrl_list().get(0); dyDto.setVideoPic(videoPic); /*** 5、视频文案*/String desc = dyResult.getItem_list().get(0).getDesc(); dyDto.setDesc(desc); }return dyDto; }

ResultDto.java
public class ResultDto {private String videoUrl; //视频private String musicUrl; //背景音乐private String videoPic; //无声视频private String desc; public String getDesc() {return desc; }public void setDesc(String desc) {this.desc = desc; }public String getVideoUrl() {return videoUrl; }public void setVideoUrl(String videoUrl) {this.videoUrl = videoUrl; }public String getMusicUrl() {return musicUrl; }public void setMusicUrl(String musicUrl) {this.musicUrl = musicUrl; }public String getVideoPic() {return videoPic; }public void setVideoPic(String videoPic) {this.videoPic = videoPic; }}

CommonUtils .java
public class CommonUtils {public static String DOU_YIN_BASE_URL = "https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids="; public static String HUO_SHAN_BASE_URL = " https://share.huoshan.com/api/item/info?item_id="; public static String DOU_YIN_DOMAIN = "douyin"; public static String HUO_SHAN_DOMAIN = "huoshan"; public static String getLocation(String url) {try {URL serverUrl = new URL(url); HttpURLConnection conn = (HttpURLConnection) serverUrl.openConnection(); conn.setRequestMethod("GET"); conn.setInstanceFollowRedirects(false); conn.setRequestProperty("User-agent", "ua"); //模拟手机连接conn.connect(); String location = conn.getHeaderField("Location"); return location; } catch (Exception e) {e.printStackTrace(); }return ""; }public static String matchNo(String redirectUrl) {List results = new ArrayList<>(); Pattern p = Pattern.compile("video/([\\w/\\.]*)/"); Matcher m = p.matcher(redirectUrl); while (!m.hitEnd() && m.find()) {results.add(m.group(1)); }return results.get(0); }public static String hSMatchNo(String redirectUrl) {List results = new ArrayList<>(); Pattern p = Pattern.compile("item_id=([\\w/\\.]*)&"); Matcher m = p.matcher(redirectUrl); while (!m.hitEnd() && m.find()) {results.add(m.group(1)); }return results.get(0); }public static String httpGet2(String urlStr) throws Exception {URL url = new URL(urlStr); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setRequestMethod("GET"); conn.setRequestProperty("Content-Type", "text/json; charset=utf-8"); BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8")); StringBuffer buf = new StringBuffer(); String inputLine = in.readLine(); while (inputLine != null) {buf.append(inputLine).append("\r\n"); inputLine = in.readLine(); }in.close(); return buf.toString(); }/*** 使用Get方式获取数据** @param url URL包括参数,http://HOST/XX?XX=XX&XXX=XXX* @return*/public static String httpGet(String url) {String result = ""; BufferedReader in = null; try {URL realUrl = new URL(url); // 打开和URL之间的连接URLConnection connection = realUrl.openConnection(); // 设置通用的请求属性connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"); // 建立实际的连接connection.connect(); // 定义 BufferedReader输入流来读取URL的响应in = new BufferedReader(new InputStreamReader(connection.getInputStream(), "UTF-8")); String line; while ((line = in.readLine()) != null) {result += line; }} catch (Exception e) {System.out.println("发送GET请求出现异常!" + e); e.printStackTrace(); }// 使用finally块来关闭输入流finally {try {if (in != null) {in.close(); }} catch (Exception e2) {e2.printStackTrace(); }}return result; }public static String parseUrl(String url) {String host = ""; Pattern p = Pattern.compile("http[:|/|\\w|\\.]+"); Matcher matcher = p.matcher(url); if (matcher.find()) {host = matcher.group(); }return host.trim(); }/*** 查找域名(以 https开头 com结尾)** @param url* @return*/public static String getDomainName(String url) {String host = ""; Pattern p = Pattern.compile("https://.*\\.com"); Matcher matcher = p.matcher(url); if (matcher.find()) {host = matcher.group(); }return host.trim(); }}


四、总结 其实看那个第二部分原理就行了是不是很简单?
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