目录
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:
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
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
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
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 = \"/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<String> 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<String> 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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