/// <summary>
/// 抓取百家号主页的list,抓取文章阅读量等数据,
/// </summary>
/// <returns></returns>
public int GatheringNewsFromAuthor()
{
try
{
//取出待处理百家号的数据，并置位isdeal=2 处理中
var list = DalNews.GetNoDealAuthorList_Bjh();
#region === 取出待刷新的百家号url数据 ===
if (list != null && list.Count > 0)
{
foreach (var item in list)
{
if (!string.IsNullOrWhiteSpace(item.AuthorId))
{
var url = "http://baijiahao.baidu.com/api/content/article/listall?sk=super&ak=super&app_id={0}&_skip={1}&_limit=12";
DealAuthorData(url, item.AuthorId, item.GroupId, 0);
}
}
//Thread.Sleep(5 * 1000);
Thread.Sleep(200);
}
else
{
Log.Info("暂时没有要处理的百家号url");
Thread.Sleep(60 * 1000);
}
#endregion
}
catch (Exception ex)
{
Log.Error(ex.Message + ex.StackTrace);
}
return(0);
}
public int GatheringAuthorUrlSearch()
{
if (true)
{
//var keywords = Global.BjhSearchKeywords.Split(',');
var keywords = DalNews.GetNoDealKeyword();
foreach (var keyword in keywords)
{
if (keyword.Keyword != null)
{
//GatheringAuthorUrlFromSearch(keyword, 100, 0);
GatheringAuthorUrlFromSearch("intitle%3A\"" + keyword.Keyword + "\"%20", 100, 0);
Thread.Sleep(2 * 1000);
}
//try
//{
// var arrKeyword = keyword.Split(' ');
// if (arrKeyword != null && arrKeyword.Length > 0)
// {
// foreach (var singleKeyword in arrKeyword)
// {
// if (!string.IsNullOrWhiteSpace(singleKeyword))
// {
// for (var i = 0; i < singleKeyword.Length; i++)
// {
// GatheringAuthorUrlFromSearch("intitle%3A\"" + singleKeyword.Substring(i, 1) + "\"%20", 100, 0);
// //GatheringAuthorUrlFromSearch("%2B\"" + singleKeyword.Substring(i, 1) + "\"%20百家号%20贡献文章", 100, 0);
// GatheringAuthorUrlFromSearch(singleKeyword.Substring(i, 1) + " 百家号 ", 100, 0);
// //https://www.baidu.com/s?wd=%2B"娱乐"%20百家号%20贡献文章%20inurl%3Abaijiahao.baidu.com%2Fu%3Fapp_id
// Thread.Sleep(2 * 1000);
// }
// }
// }
// }
//}
//catch (Exception ex)
//{
// Log.Error(ex);
// Thread.Sleep(60 * 1000);
//}
}
}
else
{
}
return(0);
}
public int DealAuthorData(string url, string authorId, string groupId, int AuthorPageIndex)
{
//var url = "http://baijiahao.baidu.com/api/content/article/listall?sk=super&ak=super&app_id={0}&_skip={1}&_limit=12";
var skip = AuthorPageIndex * 12;
if (skip == 0)
{
url = string.Format(url, authorId, skip);
}
else
{
url = url.Replace((skip - 12).ToString(), skip.ToString());
}
var strContent = "";
try
{
Log.Info(url + " 百家号抓取开始 页码" + AuthorPageIndex);
strContent = HttpHelper.GetContentByAgent(url, Encoding.UTF8);
if (string.IsNullOrWhiteSpace(strContent))
{
//重新请求一次，因为用了代理后，经常会失败
strContent = HttpHelper.GetContentByAgent(url, Encoding.UTF8);
if (string.IsNullOrWhiteSpace(strContent))
{
//HttpHelper.IsUseProxy = false;
//重新请求一次，因为用了代理后，经常会失败
strContent = HttpHelper.GetContentByAgent(url, Encoding.UTF8);
//HttpHelper.IsUseProxy = true;
if (string.IsNullOrWhiteSpace(strContent))
{
Log.Info(url + " 未抓取到任何内容 页码" + AuthorPageIndex);
return(0);
}
}
}
var isHaveMore = false;
//strContent = FormatJsonData(strContent);
var data = JsonConvert.DeserializeObject <DtoBaijiahaoAuthorJsData>(strContent);
if (data != null)
{
Log.Info(url + " 页码" + AuthorPageIndex);
#region === 处理data中的数据，存储新闻信息 ===
if (data.items != null && data.items.Count > 0)
{
if (data.total > (AuthorPageIndex + 1) * 12)
{
isHaveMore = true;
}
foreach (var subItem in data.items)
{
try
{
var pubTime = Comm.Tools.Utility.StringConverter.ToDateTime(subItem.publish_at);
//一个月前的新闻不抓取
if (pubTime.AddMonths(1) < DateTime.Now)
{
Log.Info("发布时间在1月前不入库 appid=" + subItem.app_id + " pubtime=" + subItem.publish_at + " title=" + subItem.title);
continue;
}
var newsId = DalNews.IsExistsNews_Bjh(authorId, subItem.title);
if (newsId < 1)
{
#region === 不存在的插入===
var model = new DtoNews()
{
Author = "",
AuthorId = authorId,
Contents = "",
CreateTime = DateTime.Now,
//CurReadTimes = Global.ToInt(subItem.read_amount),
CurReadTimes = subItem.read_amount,
FromSiteName = "baijiahao",
FromUrl = subItem.url,
IntervalMinutes = 60,
IsDeal = 0,
IsHot = 0,
IsShow = 1,
LastDealTime = DateTime.Now,
LastReadTimes = subItem.read_amount,
LogoOriginalUrl = subItem.url,
LogoUrl = "",
NewsHotClass = 7,
NewsTypeId = (int)NewsTypeEnum.新闻,
PubTime = Comm.Tools.Utility.StringConverter.ToDateTime(subItem.publish_at),
Tags = subItem.tag,
Title = subItem.title,
TotalComments = subItem.comment_amount,
RefreshTimes = 0,
GroupId = subItem.app_id
};
DalNews.Insert_News_Bjh(model);
#endregion
}
else
{
#region === 存在的则更新数据 ===
var oldNews = DalNews.GetNews_Bjh(newsId);
if (oldNews != null)
{
//b、变化数据，如果是当天发稿的文章，每15分钟刷新一次阅读量，如果5、6、7级，则改为小时更新；
//7天内发稿的文章，每一小时更新一次阅读数；
//7天以上，每天刷新；
//（这个可以按欢迎度级别优化，如15分钟阅读增加在10000以上为1级，5000以上为2级，2500以上为3级，1000以上为4级，500以上为5级，100以上为6级，100以下为7级）
var isHot = 0;
var minutes = (DateTime.Now - oldNews.LastDealTime).TotalMinutes;
var newsClassId = 7;
var addReads = subItem.read_amount - oldNews.CurReadTimes;
var intervalMinutes = 24 * 60;
if (addReads > 0)
{
if (minutes > 60)
{
var perHourReads = addReads / (minutes / 60.0);
if (perHourReads > 10000)
{
isHot = 1;
}
}
else
{
if (addReads > 10000)
{
isHot = 1;
}
}
#region === 15分钟阅读量分析 ===
var per15MinutesReads = addReads / (minutes / 15.0);
if (per15MinutesReads > 10000)
{
newsClassId = 1;
isHot = 1;
intervalMinutes = 15;
}
else if (per15MinutesReads > 5000)
{
newsClassId = 2;
isHot = 1;
intervalMinutes = 15;
}
else if (per15MinutesReads > 2500)
{
newsClassId = 3;
intervalMinutes = 15;
}
else if (per15MinutesReads > 1000)
{
newsClassId = 4;
intervalMinutes = 15;
}
else if (per15MinutesReads > 500)
{
newsClassId = 5;
intervalMinutes = 60;
}
else if (per15MinutesReads > 100)
{
newsClassId = 6;
intervalMinutes = 60;
}
else
{
newsClassId = 7;
intervalMinutes = 60;
}
#endregion
}
if (oldNews.PubTime.AddHours(24) < DateTime.Now)
{
//不是今天发布的
intervalMinutes = 24 * 60;
}
//如果原来是爆文的不修改ishot
if (oldNews.IsHot == 1)
{
isHot = 1;
}
if (oldNews.NewsHotClass < newsClassId)
{
newsClassId = oldNews.NewsHotClass;
}
var model = new DtoNews()
{
Id = newsId,
LastReadTimes = oldNews.CurReadTimes,
CurReadTimes = subItem.read_amount,
IsHot = isHot,
IsDeal = 1,
TotalComments = subItem.comment_amount,
IntervalMinutes = intervalMinutes,
NewsHotClass = newsClassId,
LastDealTime = DateTime.Now,
};
DalNews.UpdateNews_Bjh(model);
//暂不更新作者表的刷新时间，没用上
//DalNews.UpdateAuthorInterval(authorId, intervalMinutes);
}
#endregion
}
}
catch (Exception ex)
{
}
}
}
#endregion
//Random rnd = new Random();
//有更多数据，则继续抓取数据
if (isHaveMore)
{
//sleep
//Thread.Sleep(rnd.Next(1000, 2500));
Thread.Sleep(200);
AuthorPageIndex++;
DealAuthorData(url, authorId, groupId, AuthorPageIndex);
}
else
{
Log.Info("本百家号抓取结束总页数" + AuthorPageIndex);
//置位状态
//DalNews.UpdateAuthorIsDeal(authorId, 1);
AuthorPageIndex = 0;
//Thread.Sleep(rnd.Next(2000, 5000));
Thread.Sleep(200);
}
}
else
{
Log.Info(url + " 百家号未取到数据 页码" + AuthorPageIndex);
}
}
catch (Exception ex)
{
Log.Error(ex.Message + ex.StackTrace);
Log.Debug("======strContent begin 百家号抓取=========");
Log.Debug(url);
Log.Debug(strContent);
Log.Debug("======strContent end =========");
}
return(1);
}
/// <summary>
/// 根据搜索关键字搜索百家号的文章的url,再从文章取作者的url
/// </summary>
/// <param name="newsListUrl"></param>
/// <param name="newsType"></param>
/// <returns></returns>
public int GatheringAuthorUrlFromSearch2(string keywords, int newsType, int searchPageIndex)
{
if (string.IsNullOrWhiteSpace(keywords))
{
return(0);
}
//百家号地址计数器，如果当前搜索页百家号地址小于2则不再读取下一页数据
var iBjhCount = 0;
//有效的百家号计数器
var iHaveValidBjh = 0;
//每次循环没有百家号计数
var iContinueNo = 0;
var strContent = "";
//贡献文章 总阅读数 作者文章 按时间
//keywords = keywords.Replace("贡献文章", "\"贡献文章\"");
//keywords = keywords.Replace("总阅读数", "\"总阅读数\"");
//keywords = keywords.Replace("作者文章", "\"作者文章\"");
//keywords = keywords.Replace("按时间", "\"按时间\"");
keywords = keywords.Replace("贡献文章 ", "");
keywords = keywords.Replace("贡献文章", "");
keywords = keywords.Replace("总阅读数 ", "");
keywords = keywords.Replace("总阅读数", "");
keywords = keywords.Replace("作者文章 ", "");
keywords = keywords.Replace("作者文章", "");
keywords = keywords.Replace("按时间", "");
//用来记录搜索关键字
var groupid = keywords;
if (groupid.Length > 50)
{
groupid = groupid.Substring(0, 30);
}
//keywords = keywords.Replace(" ","").Replace("\\","").Replace("%20","");
keywords = keywords.Replace(" ", "%20");
//keywords = System.Web.HttpUtility.UrlEncode(keywords);
//var site = "%20site%3Abaijiahao.baidu.com";
var inurl = "inurl%3Abaijiahao.baidu.com%20\"本文系作者授权百家号发表\"";
var url = "https://www.baidu.com/s?wd=" + keywords + inurl;
try
{
if (searchPageIndex > 0)
{
url += "&pn=" + searchPageIndex * 10;
}
Log.Info(url + " 搜索 页码" + searchPageIndex);
#region === 取内容 ===
strContent = HttpHelper.GetContent(url, Encoding.UTF8);
if (string.IsNullOrWhiteSpace(strContent))
{
Thread.Sleep(1 * 1000);
//重新请求一次，因为用了代理后，经常会失败
strContent = HttpHelper.GetContentByAgent(url, Encoding.UTF8);
if (string.IsNullOrWhiteSpace(strContent))
{
//HttpHelper.IsUseProxy = false;
//重新请求一次，因为用了代理后，经常会失败
Thread.Sleep(1 * 1000);
strContent = HttpHelper.GetContentByAgent(url, Encoding.UTF8);
//HttpHelper.IsUseProxy = true;
if (string.IsNullOrWhiteSpace(strContent))
{
Log.Info(url + " 未抓取到任何内容 页码" + searchPageIndex);
}
}
}
#endregion
//Log.Info("===========begin =============="+url + " " + searchPageIndex);
//Log.Info(strContent);
//Log.Info("===========end ==============" + url + " " + searchPageIndex);
#region === deal baijiahao ===
if (!string.IsNullOrWhiteSpace(strContent))
{
var lista = XpathHelper.GetOuterHtmlListByXPath(strContent, "//div[@class='f13']/a[1]");
if (lista != null && lista.Count > 0)
{
iBjhCount = 0;
iHaveValidBjh = 0;
foreach (var a in lista)
{
var href = XpathHelper.GetAttrValueByXPath(a, "//a", "href");
#region === deal baijiahao news url ===
Thread.Sleep(1 * 1000);
var str = HttpHelper.GetContentByAgent(href, Encoding.UTF8);
if (string.IsNullOrWhiteSpace(str))
{
str = HttpHelper.GetContent(href, Encoding.UTF8);
}
//取百家号主页里的百家号名称，appid
var author = "";
var appId = "";
if (!string.IsNullOrWhiteSpace(str))
{
try
{
author = XpathHelper.GetInnerHtmlByXPath(str, "//div[@class='author-detail']/a/p", "").Replace("-百家号", "");
appId = XpathHelper.GetAttrValueByXPath(str, "//div[@class='author-detail']/a", "href");
//u?app_id=1546166210605725&fr=bjhvideo&wfr=spider
if (!string.IsNullOrWhiteSpace(appId))
{
var str2 = appId.Split('=');
appId = str2[1].Replace("&fr", "");
}
else
{
var iIndex = str.IndexOf("\"app_id\":");
if (iIndex > 0)
{
appId = str.Substring(iIndex + 10, 19).Replace("\",\"type", "").Replace("\"", "").Replace(",", "").Replace("type", "");
}
else
{
#region === 重新取内容处理 ===
Thread.Sleep(1 * 1000);
str = HttpHelper.GetContent(href, Encoding.UTF8);
if (string.IsNullOrWhiteSpace(str))
{
str = HttpHelper.GetContentByAgent(href, Encoding.UTF8);
}
if (!string.IsNullOrWhiteSpace(str))
{
try
{
author = XpathHelper.GetInnerHtmlByXPath(str, "//div[@class='author-detail']/a/p", "").Replace("-百家号", "");
appId = XpathHelper.GetAttrValueByXPath(str, "//div[@class='author-detail']/a", "href");
//u?app_id=1546166210605725&fr=bjhvideo&wfr=spider
if (!string.IsNullOrWhiteSpace(appId))
{
var str2 = appId.Split('=');
appId = str2[1].Replace("&fr", "");
}
else
{
iIndex = str.IndexOf("\"app_id\":");
if (iIndex > 0)
{
appId = str.Substring(iIndex + 10, 19).Replace("\",\"type", "").Replace("\"", "").Replace(",", "").Replace("type", "");
}
else
{
}
}
}
catch { }
}
#endregion
}
}
}
catch (Exception ex)
{ }
}
else
{
Log.Info("取百家号主页内容没取到 href=" + href);
}
if (string.IsNullOrWhiteSpace(appId))
{
Log.Info("appid没取到 内容如下=== begin === href=" + href);
//Log.Info(str);
Log.Info("appid没取到 内容如下=== end === href" + href);
continue;
}
#region === 判断是否已存在 ===
var isHave = DalNews.IsExistsAuthor_Bjh(appId);
if (!isHave)
{
iHaveValidBjh++;
var model = new DtoAuthor()
{
Author = author,
AuthorId = appId,
GroupId = groupid,
IntervalMinutes = 60,
IsDeal = 0,
IsShow = 0,
LastDealTime = DateTime.Now,
RefreshTimes = 0,
Url = "http://baijiahao.baidu.com/u?app_id=" + appId,
};
var id = DalNews.Insert_Author_Bjh(model);
Log.Info("keyword" + keywords + "authodid=" + id);
}
else
{
//iHaveValidBjh = 0;
Log.Info("appid" + appId + "已存在");
}
#endregion
#endregion
}
}
}
else
{
Log.Error("url=" + url + " 无内容" + DateTime.Now);
}
#endregion
//如果当前页有百家号>=3则翻页，否则结束
if (iBjhCount >= 3)
{
//当翻页到后面且没有新的百家号时退出，不再翻页
if (iHaveValidBjh < 1 && searchPageIndex > 30)
{
return(0);
}
searchPageIndex++;
GatheringAuthorUrlFromSearch(keywords, newsType, searchPageIndex);
}
}
catch (Exception ex)
{
Log.Error("url=" + url + " " + DateTime.Now);
Log.Error(ex.Message + ex.StackTrace);
}
return(0);
}
public void ImgDealing()
{
try
{
Log.Info("图片处理开始");
var listNews = DalNews.GetNoDealNewsList();
if (listNews == null || listNews.Count < 1)
{
Log.Info("没有要处理的图片" + DateTime.Now);
return;
}
if (listNews.Count > 0)
{
foreach (var item in listNews)
{
try
{
Log.Info("===== newsid= " + item.Id + " 处理开始 =====");
var newsId = item.Id;
var savePath = Global.ImgSavePrex + Global.ImgSaveSuffix + newsId + "\\";
#region === 处理logo图 ===
Log.Info("处理logo图:" + item.LogoUrl);
var logUrl = item.LogoUrl;
var fileName = Img.NetImgSaveAs(logUrl, savePath);
//处理成功更新字段
if (!string.IsNullOrWhiteSpace(fileName))
{
var dbSavePath = Global.ImgSaveSuffix + newsId + "\\" + fileName;
var model = new T_News()
{
LogoUrl = dbSavePath,
//ImgFlag =1,
Id = newsId
};
//model.Update();
}
#endregion
#region === 处理内容中的图 ===
//暂不处理内容区，内容区的处理后用了相对地址，取出时无法加上域名前缀（不方便）
//Log.Info("处理内容区:" + item.LogoUrl);
//var content = item.Contents;
//var imgList = StrHelper.GetAttrStrListByXPath(content, "//img","src");
//if (imgList != null && imgList.Count > 0)
//{
// foreach (var img in imgList)
// {
// try
// {
// if (img.Length < 1)
// continue;
// var nfileName = Img.NetImgSaveAs(img, savePath);
// //替换内容区中的该图片链接
// if (!string.IsNullOrWhiteSpace(nfileName))
// {
// var dbSavePath = Global.ImgSaveSuffix + newsId + "\\" + nfileName;
// content = content.Replace(img, dbSavePath);
// }
// }
// catch (Exception ex)
// {
// Log.Error("处理异常: " + img);
// Log.Error(ex.Message + ex.StackTrace);
// }
// }
// //处理成功更新字段
// var model = new T_News()
// {
// Contents = content,
// Id = newsId
// };
// model.Update();
//}
#endregion
#region === 处理图片类型下的多图部分 ===
if (item.NewsMedia != null && item.NewsMedia.Count > 0)
{
foreach (var subItem in item.NewsMedia)
{
var picUrl = subItem.PicUrl;
var nfileName = Img.NetImgSaveAs(picUrl, savePath);
//处理成功更新字段
if (!string.IsNullOrWhiteSpace(nfileName))
{
var dbSavePath = Global.ImgSaveSuffix + newsId + "\\" + nfileName;
//var model = new T_NewsMedia()
//{
// PicUrl = dbSavePath,
// Id = subItem.Id
//};
//model.Update();
}
}
}
#endregion
Log.Info("===== newsid= " + item.Id + " 处理完成 =====");
//休眠 控制抓取的频率
Random rnd = new Random();
var sleepSeconds = rnd.Next(30, 90);
Thread.Sleep(sleepSeconds * 1000);
}
catch (Exception ex)
{
Log.Error("内容: " + item);
Log.Error(ex.Message + ex.StackTrace);
}
}
}
Log.Info("图片处理结束");
}
catch (Exception ex)
{
Log.Error(ex.Message + ex.StackTrace);
}
}
public List <DtoNewsUrlList> NewsUrlGathering(string newsListUrl, int newsType)
{
try
{
Log.Info(newsListUrl + " 抓取开始");
var strContent = HttpHelper.GetContentByMobileAgent(newsListUrl, Encoding.GetEncoding("gb2312"));
if (string.IsNullOrWhiteSpace(strContent))
{
Log.Info(newsListUrl + " 未抓取到任何内容");
return(null);
}
//取得标题列表
var strList = XpathHelper.GetInnerHtmlListByXPath(strContent, "//div[@class='leftList']/ul/li");
if (strList != null && strList.Count > 0)
{
foreach (var item in strList)
{
try
{
var url = XpathHelper.GetAttrValueByXPath(item, "//a", "href");
var title = XpathHelper.GetInnerHtmlByXPath(item, "//a", "");
title = StrHelper.FormatHtml(title).Trim();
var isHave = DalNews.IsExistsNews(title);
//如果已存在则跳过
if (isHave)
{
continue;
}
if (newsType == 100 || newsType == 200 || newsType == 300)
{
#region === 根据详细页地址取新闻内容 ===
var news = NewsGathering(url);
if (news != null)
{
news.NewsTypeId = newsType;
news.Title = title;
news.PubTime = StrHelper.ToDateTime(StrHelper.FormatPubTime(news.PubTime.ToString()));
//入库
var newsId = DalNews.Insert(news);
if (newsId < 1)
{
continue;
}
//从内容中提取img,存入newsmedia
var mediaList = ImgDeal.GetImgList(news.Contents);
if (mediaList != null && mediaList.Count > 0)
{
news.Contents = mediaList[0].Description;
foreach (var picitem in mediaList)
{
picitem.NewsId = newsId;
DalNews.InsertMedia(picitem);
}
}
//休眠 控制抓取的频率
Random rnd = new Random();
var sleepSeconds = rnd.Next(30, 90);
Thread.Sleep(sleepSeconds * 1000);
}
#endregion
}
if (newsType == 400)
{
#region === 根据详细页地址取图片内容 ===
var mediaList = NewsPicGathering(url);
var news = new DtoNews()
{
Title = title,
FromUrl = url,
NewsTypeId = newsType,
};
if (mediaList != null && mediaList.Count > 0)
{
news.Contents = mediaList[0].Description;
//入库
var newsId = DalNews.Insert(news);
foreach (var picitem in mediaList)
{
picitem.NewsId = newsId;
DalNews.InsertMedia(picitem);
}
}
//休眠 控制抓取的频率
Random rnd = new Random();
var sleepSeconds = rnd.Next(30, 90);
Thread.Sleep(sleepSeconds * 1000);
#endregion
}
Log.Info(url + " 抓取完成");
}
catch (Exception ex)
{
//Log.Error("内容: " + item);
Log.Error(ex.Message + ex.StackTrace);
}
}
}
Log.Info(newsListUrl + " 抓取结束");
return(null);
}
catch (Exception ex)
{
Log.Error(ex.Message + ex.StackTrace);
}
return(null);
}