private static List <string> AnalyseVideoList(string url)
{
var htmlContent = NetWorkHandle.GetHtmlContent(url).Item2;
List <string> childUrls = new List <string>();
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var listNode = htmlDoc.DocumentNode.SelectSingleNode(@"//iron-list[@class='playlist-items yt-scrollbar-dark style-scope ytd-playlist-panel-renderer']");
var olNode = htmlDoc.DocumentNode.SelectSingleNode(@"//ol[@id='playlist-autoscroll-list']");
if (olNode == null)
{
return(childUrls);
}
var liNodes = olNode.Descendants("li");
foreach (var liNode in liNodes)
{
var videoId = liNode.Attributes["data-video-id"].Value;
var videoUrl = string.Format(baseVideoUrlFormat, videoId);
Console.WriteLine(videoUrl);
childUrls.Add(videoUrl);
}
return(childUrls);
}
public static List <SpiderModel> SingleSpider()
{
var result = new List <SpiderModel>();
try
{
Console.WriteLine("开始分析网页");
var gagUrl = "https://9gag.com/video";
var htmlContent = NetWorkHandle.GetHtmlContent(gagUrl).Item2;
//{"id":" },{"id"
Regex infosRegex = new Regex("{\"id\":\"" + ".*?" + "{\"id\"");
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var matchInfos = infosRegex.Matches(htmlContent);
foreach (var item in matchInfos)
{
//,{"id"
}
var articles = htmlDoc.DocumentNode.SelectNodes(@"//article");
var nowTime = DateTime.Now;
int i = 1;
foreach (var item in articles)
{
var spidermodel = new SpiderModel();
var add_time = nowTime.AddMinutes(-4 * i);
var title = item.ChildNodes[1].InnerText.ToString().Trim();
var existsList = File.ReadAllLines(VideoInfoPath, Encoding.UTF8); //GetTxtList(existsVideoPath);
if (existsList.Contains(title))
{
Console.WriteLine($"{title}--已存在");
continue;
}
var videoUrl = item.ChildNodes[3].ChildNodes[1].ChildNodes[1].GetAttributeValue("data-mp4", "");
var imgUrl = item.ChildNodes[3].ChildNodes[1].ChildNodes[1].ChildNodes[1].GetAttributeValue("poster", "");
// data-mp4 poster Regex.Replace(str, @"\s+", " ");
if (string.IsNullOrEmpty(videoUrl))
{
continue;
}
spidermodel.Title = title;
spidermodel.videoUrl = videoUrl;
spidermodel.ImgUrl = imgUrl;
spidermodel.Id = Guid.NewGuid();
result.Add(spidermodel);
Console.WriteLine($"{title}--添加成功");
}
}
catch (Exception ex)
{
return(result);
}
Console.WriteLine("网页分析完毕");
return(result);
}
private static List <string> AnalyseVideoUrlListByUserVideoUrl(string url)
{
var childUrls = new List <string>();
var htmlContent = NetWorkHandle.GetHtmlContent(url).Item2;
if (string.IsNullOrEmpty(htmlContent))
{
return(childUrls);
}
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var htmlNodes = htmlDoc.DocumentNode.SelectNodes(@"//a[@class='yt-uix-sessionlink yt-uix-tile-link spf-link yt-ui-ellipsis yt-ui-ellipsis-2']");
if (htmlNodes == null)
{
return(childUrls);
}
foreach (var htmlNode in htmlNodes)
{
childUrls.Add("https://www.youtube.com/" + htmlNode.GetAttributeValue("href", ""));
}
return(childUrls);
}
private static List <string> Analyse(string url)
{
List <string> urls = new List <string>();
//url = "https://space.bilibili.com/25911961/video";
var code = url.Replace("https://space.bilibili.com/", "").Split('/')[0];
//https://space.bilibili.com/ajax/member/getSubmitVideos?mid=25911961&pagesize=30&tid=0&page=1&keyword=&order=pubdate
var jsonUrl = $"https://space.bilibili.com/ajax/member/getSubmitVideos?mid={code}&pagesize=30&tid=0&page=1&keyword=&order=pubdate";
var jsonContent = NetWorkHandle.GetHtmlContent(jsonUrl).Item2;
jsonContent = Regex.Unescape(jsonContent);
dynamic jsonObj = JsonConvert.DeserializeObject(jsonContent);
var data = jsonObj.data;
var vlists = data.vlist;
foreach (var vlist in vlists)
{
string title = vlist.title;
string aid = vlist.aid;
var childUrl = "https://www.bilibili.com/video/av" + aid;
urls.Add(childUrl);
}
return(urls);
}
public static void CollectYoutubeVideos(string url)
{
Console.WriteLine("开始采集");
var htmlContent = NetWorkHandle.GetHtmlContent(url).Item2;
var userName = "";
HtmlDocument htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(htmlContent);
var liNode = htmlDoc.DocumentNode.SelectSingleNode(@"//li[@class='author-attribution']");
if (liNode is null)
{
var titleSpanNode = htmlDoc.DocumentNode.SelectSingleNode(@"//meta[@name='title']");
userName = titleSpanNode.GetAttributeValue("content", "");// titleSpanNode.InnerText.Trim().ToLower();
}
else
{
userName = liNode.InnerText.Trim().ToLower();
}
userName = HttpUtility.HtmlDecode(userName);
userName = userName.Replace(" ", "_").Replace(" ", "_");
if (!Directory.Exists(youtubeUserVideoPath))
{
Directory.CreateDirectory(youtubeUserVideoPath);
}
var currentUserPath = Path.Combine(youtubeUserVideoPath, userName);
if (!Directory.Exists(currentUserPath))
{
Directory.CreateDirectory(currentUserPath);
}
var logPath = Path.Combine(currentUserPath, "video_list.log");
if (!File.Exists(logPath))
{
File.WriteAllText(logPath, "", Encoding.UTF8);
}
var childUrls = new List <string>();
if (new Regex("/user/[^/]+/video").IsMatch(url))
{
childUrls = AnalyseVideoUrlListByUserVideoUrl(url);
}
else
{
childUrls = AnalyseVideoList(url);
}
var existUrls = File.ReadAllLines(logPath, Encoding.UTF8);
foreach (var childUrl in childUrls)
{
Console.WriteLine("开始下载--" + childUrl);
if (existUrls.Contains(childUrl))
{
continue;
}
VideoSpiderTools.YoutubedlDownload(childUrl, currentUserPath, false);
LogHelper.WriteLogs(childUrl, logPath);
Thread.Sleep(2000);
}
}
private static List <string> Analyse(string url, int pageNum, int lowViewCount)
{
if (!Directory.Exists(videoDir))
{
Directory.CreateDirectory(videoDir);
}
//url = "http://v.qq.com/vplus/cb5be02aeda6adbbbac790ee1028a77e/videos";
//http://c.v.qq.com/vchannelinfo?otype=json&uin=cb5be02aeda6adbbbac790ee1028a77e&qm=1&pagenum=3&num=24
var currenId = url.Substring(url.IndexOf("vplus/") + 6, url.IndexOf("/videos") - url.IndexOf("vplus/") - 6);
List <string> urls = new List <string>();
for (int i = 1; i < pageNum + 1; i++)
{
var currentUrl = string.Format(formatUrl, currenId, i.ToString());
var content = NetWorkHandle.GetHtmlContent(currentUrl).Item2;
if (string.IsNullOrEmpty(content))
{
continue;
}
content = content.Trim().Replace("QZOutputJson=", "");
content = content.Substring(0, content.Length - 1);
dynamic infoObj = JsonConvert.DeserializeObject(content);
var videolst = infoObj["videolst"];
if (!videolst.HasValues)
{
return(urls);
}
foreach (var singleVideolst in videolst)
{
var childUrlObj = singleVideolst["url"];
var childUrl = childUrlObj.Value;
Console.WriteLine(childUrl);
var playCountStr = Convert.ToString(singleVideolst["play_count"].Value);
var playCount = 0;
//1.6万
if (playCountStr.Contains("万"))
{
playCountStr = playCountStr.Replace("万", "");
var tempCount = Convert.ToDouble(playCountStr);
tempCount = tempCount * 10000;
playCount = (int)tempCount;
}
else
{
playCount = Convert.ToInt32(playCountStr);
}
if (playCount < lowViewCount)
{
continue;
}
var titleObj = singleVideolst["title"];
var title = titleObj.Value;
urls.Add(childUrl);
}
Thread.Sleep(2000);
}
return(urls);
}
private static void DownloadByList(string url)
{
var urls = new List <string>();
Console.WriteLine("开始采集");
HtmlWeb web = new HtmlWeb();
var doc = web.Load(url);
var content = NetWorkHandle.GetHtmlContent(url);
var aa = content;
var ulNode = doc.DocumentNode.SelectSingleNode(@"//ul[@class='figure_list']");
if (ulNode is null)
{
return;
}
var liNodes = ulNode.Descendants("li");
if (liNodes is null)
{
return;
}
foreach (var liNode in liNodes)
{
var aNode = liNode.Descendants("a").FirstOrDefault();
if (aNode is null)
{
continue;
}
var href = aNode.GetAttributeValue("href", "");
var childUrl = host + href;
Console.WriteLine(childUrl);
urls.Add(childUrl);
}
var todayDir = Path.Combine(basePath, DateTime.Now.ToString("yyyyMMdd"));
if (!Directory.Exists(todayDir))
{
Directory.CreateDirectory(todayDir);
}
foreach (var childUrl in urls)
{
Console.WriteLine("下载--" + childUrl);
try
{
var task = Task.Run(() => {
if (VideoSpiderTools.YouGetDownLoad(childUrl, todayDir, false))
{
Console.WriteLine(childUrl + "--下载成功");
//LogHelper.WriteLogs(childUrl.Trim(), logPath);
}
else
{
Console.WriteLine(childUrl + "--下载失败");
}
});
if (!task.Wait(TimeSpan.FromMinutes(3)))
{
Console.WriteLine(childUrl + "--超时退出，下载失败");
}
Thread.Sleep(2000);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
public virtual bool DownloadFile(string url, string saveFilePath)
{
return(NetWorkHandle.DownFileMethod(url, saveFilePath));
}
public static void DownLoadFiles()
{
if (!Directory.Exists(basePath))
{
Directory.CreateDirectory(basePath);
}
if (!File.Exists(VideoInfoPath))
{
File.Create(VideoInfoPath);
}
var results = SingleSpider();
foreach (var item in results)
{
var id = item.Id.ToString();
var title = item.Title.Trim();
try
{
if (string.IsNullOrEmpty(title))
{
title = DateTime.Now.ToString("yyyyMMddHHmmss");
}
var url = item.videoUrl;
var videoName = title + ".mp4";
var imgName = "";
if (!string.IsNullOrEmpty(item.ImgUrl))
{
var imgUrl = item.ImgUrl;
Console.WriteLine($"开始下载--{item.ImgUrl}");
imgName = title + ".jpg";
var imgFilePath = Path.Combine(basePath, imgName);
if (NetWorkHandle.DownFileMethod(imgUrl, imgFilePath))
{
Console.WriteLine($"下载--{item.ImgUrl}--成功");
}
else
{
Console.WriteLine($"下载--{item.ImgUrl}--失败");
}
}
var videoFilePath = Path.Combine(basePath, videoName);
if (NetWorkHandle.DownFileMethod(url, videoFilePath))
{
Console.WriteLine($"下载--{item.videoUrl}--成功");
//RecordFile(id, RecordFileName: existsFileName, path: basePath);
VideoSpiderTools.RecordFile(title, recordFile: existsFileName, path: basePath);
}
else
{
Console.WriteLine($"下载--{item.videoUrl}--失败");
}
Console.WriteLine($"{title}--完成");
}
catch (Exception ex)
{
Console.WriteLine("异常：" + title + " " + ex.Message);
VideoSpiderTools.RecordFile(title + " @ " + "异常信息：" + ex.Message, exceptionFileName);
}
}
}