FCS/FCS.Crawler/Content/Jobs/FootJobs/ZCLotteryNews/Intel_FootBallNewsJob.cs

using FCS.Common;
using FCS.Interface;
using FCS.Models;
using HtmlAgilityPack;
using Quartz;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace FCS.Crawler.ZCLotteryNews
{
    /// <summary>
    /// 国际新闻
    /// </summary>
    public class Intel_FootBallNewsJob : CommonJob, IJob
    {
        public Intel_FootBallNewsJob()
        {
            log = new LogHelper();
            services = IOC.Resolve<IDTOpenCode>();
        }

        public void Execute(IJobExecutionContext context)
        {
            Config = CommonHelper.GetConfigFromDataMap(context.JobDetail.JobDataMap);
            GetAll();
        }

        /// <summary>
        /// 执行主站技巧
        /// </summary>
        public void GetAll()
        {
            List<string> urls = new List<string> { "http://sports.163.com/world/" };
            foreach (string url in urls)
            {
                //获取国际的新闻列表，
                List<Base_News> yc_news = GetOpenListFromMainUrl(url);

                foreach (var newItem in yc_news)
                {
                    services.AddNews(currentNews, newItem);
                }

            }

        }

        /// <summary>
        /// 爬取网易的新闻列表
        /// </summary>
        /// <param name="mainUrl"></param>
        /// <returns></returns>
        private List<Base_News> GetOpenListFromMainUrl(string mainUrl)
        {

            var result = new List<Base_News>();
            try
            {
                var url = new Uri(mainUrl);
                var htmlResource = NetHelper.GetUrlResponse(mainUrl, Encoding.GetEncoding("gbk"));
                if (htmlResource == null) return result;

                HtmlDocument doc = new HtmlDocument();
                doc.LoadHtml(htmlResource);

                //遍历div下的a标签
                HtmlNodeCollection nodeList1 = doc.DocumentNode.SelectNodes("//*[@class='topnews']/ul/li/a");
                HtmlNodeCollection nodeList2 = doc.DocumentNode.SelectNodes("//*[@class='topnews']/h2/a");
                if (nodeList1 == null && nodeList2 == null) return result;

                List<string> urls = new List<string>();
                //遍历a标签
                foreach (HtmlNode node in nodeList1)
                {
                    HtmlAttribute attr = node.Attributes.SingleOrDefault(a => a.Name.Equals("href"));
                    if (attr != null)
                    {
                        string href = attr.Value;
                        //去重
                        if (!urls.Contains(href))
                        {
                            urls.Add(href);
                        }

                    }
                }
                foreach (HtmlNode node in nodeList2)
                {
                    HtmlAttribute attr = node.Attributes.SingleOrDefault(a => a.Name.Equals("href"));
                    if (attr != null)
                    {
                        string href = attr.Value;
                        //去重
                        if (!urls.Contains(href))
                        {
                            urls.Add(href);
                        }
                    }
                }
                //爬取新闻主题
                foreach (var url1 in urls)
                {
                    var YCNews = GetNewsModel(url1);
                    if (YCNews.FullHead != null && YCNews.FullHead != "")
                    {
                        result.Add(YCNews);
                    }
                }
            }
            catch (Exception ex)
            {
                log.Error(GetType(),
                     string.Format("【{0}】通过主抓取国际新闻信息时发生错误，错误信息【{1}】", Config.Area + currentNews, ex.Message));
            }
            return result;
        }

        /// <summary>
        /// 获取新闻的主题内容
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        private Base_News GetNewsModel(string url)
        {
            Base_News YCNew = new Base_News();
            try
            {
                var htmlResource = NetHelper.GetUrlResponse(url, Encoding.GetEncoding("gb2312"));
                if (htmlResource == null) return YCNew;

                HtmlDocument doc = new HtmlDocument();
                doc.LoadHtml(htmlResource);

                var div = doc.DocumentNode.SelectSingleNode("//*[@class='post_content_main']");
                if (div == null) return YCNew;
                var Title = div.ChildNodes.Where(node => node.Name == "h1").ToList();
                var divContent = doc.DocumentNode.SelectSingleNode("//*[@class='post_text']");
                if (divContent == null) return YCNew;
                string NewContent = divContent.InnerHtml.Trim();
                if (NewContent == "")
                {
                    NewContent = null;
                }

                var timeDiv = doc.DocumentNode.SelectSingleNode("//*[@class='post_time_source']");
                YCNew.ReleaseTime = timeDiv.FirstChild.InnerText.Replace("来源:", "").Replace("网易体育", "").Replace("\n", "");

                HtmlDocument imgdoc = new HtmlDocument();
                imgdoc.LoadHtml(NewContent);
                var img = imgdoc.DocumentNode.SelectSingleNode("//*[@class='f_center']/img");
                if (img != null)
                {
                    var imgsrc = img.Attributes.SingleOrDefault(a => a.Name.Equals("src"));
                    YCNew.SourceAddress = imgsrc.Value;
                }
                YCNew.Id = Guid.NewGuid().ToString();
                YCNew.FullHead = Title[0].InnerText.Trim();
                YCNew.AuthorName = "zc55128";
                YCNew.NewsContent = NoHTML(NewContent);
                YCNew.SourceName = "网易体育 国际";
                YCNew.TypeId = (int)NewsTypeEnum.国际;
                var sql = string.Format(GetLotterySqlByTableName, "Base_DataItemDetail", currentNews.GetEnumDescription());
                var res = SqlHelper.ExecuteDataset(CommandType.Text, sql);

                if (res != null && res.Tables.Count > 0 && res.Tables[0].Rows.Count > 0)
                {
                    YCNew.CategoryId = res.Tables[0].Rows[0]["Id"].ToString();
                }
                YCNew.Category = currentNews.GetEnumDescription();
                YCNew.CreateDate = DateTime.Now;
            }
            catch (Exception ex)
            {
                log.Error(GetType(),
                    string.Format("【{0}】通过主抓取国际新闻时发生错误，错误信息【{1}】", Config.Area + currentNews, ex.Message));
            }
            return YCNew;
        }

        public static string NoHTML(string html) //去除HTML标记
        {
            Regex regex1 =
                 new Regex(@"<script[sS]+</script *>",
                 RegexOptions.IgnoreCase);
            Regex regex2 =
                  new Regex(@" href *= *[sS]*script *:",
                  RegexOptions.IgnoreCase);
            Regex regex3 =
                  new Regex(@" no[sS]*=",
                  RegexOptions.IgnoreCase);
            Regex regex4 =
                  new Regex(@"<iframe[sS]+</iframe *>",
                  RegexOptions.IgnoreCase);
            Regex regex5 =
                  new Regex(@"<frameset[sS]+</frameset *>",
                  RegexOptions.IgnoreCase);
            Regex regex6 =
                  new Regex(@"<img[^>]+>",
                  RegexOptions.IgnoreCase);
            //Regex regex7 =
            //      new Regex(@"</p>",
            //      RegexOptions.IgnoreCase);
            //Regex regex8 =
            //      new Regex(@"<p>",
            //RegexOptions.IgnoreCase);
            Regex regex9 =
                  new Regex(@"<[^>]*>",
                  RegexOptions.IgnoreCase);
            html = regex1.Replace(html, ""); //过滤<script></script>标记   
            html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性   
            html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件   
            html = regex4.Replace(html, ""); //过滤iframe   
            html = regex5.Replace(html, ""); //过滤frameset   
            html = regex6.Replace(html, ""); //过滤frameset     
            html = regex9.Replace(html, "");
            html = Regex.Replace(html, "[\f\n\r\t\v]", "");  //过滤回车换行制表符  
            int index = html.IndexOf("本文来源");//删除文本来源及责任编辑
            if (index != -1)
            {
                html = html.Substring(0, index - 1);
            }
            html = html.Replace("网易体育", "彩吧足球");
            return html;
        }

        #region 初始化信息
        /// <summary>
        /// 枚举类型
        /// </summary>
        private NewsTypeEnum currentNews => NewsTypeEnum.国际;
        #endregion 初始化信息

        #region  SQL语句

        /// <summary>
        ///查询类别对应的id
        /// </summary>
        private static string GetLotterySqlByTableName = @"SELECT TOP 1 [ID],[ItemId],[ItemName] FROM [dbo].[{0}] where ItemCode='NewsCategory' and [ItemName]='{1}'  ";//WHERE [IsChecked] = 1 AND [IsPassed] = 1

        #endregion

    }
}