豆瓣美女抓取代码,CSharp代码库,德仔网

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【CSharp】豆瓣美女抓取
作者:兜兜里有糖豆 / 发布于2014/7/7/ 688

	using System;
	using System.Collections.Generic;
	using System.IO;
	using System.Linq;
	using System.Net;
	using System.Runtime.InteropServices;
	using System.Text;
	using System.Threading;
	using System.Threading.Tasks;

	namespace douban
	{
	 class Program
	 {

	 static string path = @"E:\doubanPic\";
	 static void Main(string[] args)
	 {
	 int factNum = 0;
	 while (true)
	 {
	 Console.WriteLine("输入想要下载的页数");
	 var input = Console.ReadLine();

	 if (!int.TryParse(input, out factNum))
	 {
	 Console.WriteLine("输入非法");
	 continue;
	 }
	 break;

	 }

	 Console.WriteLine("共下载的页数：" + factNum);
	 try
	 {
	 if (!Directory.Exists(path))
	 Directory.CreateDirectory(path);
	 System.Diagnostics.Process.Start("explorer.exe", path);

	 for (int i = 1; i <= factNum; i++)
	 {
	 var ls = GetPageContent(i);
	 Console.WriteLine(string.Format("第{0}页共有图片{1}张", i, ls.Count));
	 var index = 1;
	 foreach (var l in ls)
	 {
	 var s = l;
	 string picType = s.Substring(s.LastIndexOf("."));
	 if (s.IndexOf("http://") == -1)
	 {
	 s = "http://www.dbmeizi.com" + s;
	 }

	 //Thread th = new Thread(new ThreadStart(
	 // () => FileHelper.DownloadWebFile(s, Guid.NewGuid() + picType, path))
	 // );
	 //th.Start();

	 FileHelper.DownloadWebFile(s, Guid.NewGuid() + picType, path);
	 Console.ForegroundColor = ConsoleColor.Green;
	 Console.WriteLine(string.Format("下载第{0}页第{1}张图片结束", i, index));
	 Console.ForegroundColor = ConsoleColor.White;
	 index++;
	 }
	
	 Console.WriteLine(string.Format("下载第{0}页图片结束", i));
	 }
	 }
	 catch (Exception)
	 {

	 }
	 Console.WriteLine(string.Format("所有的图片下载结束"));

	 }

	

	 private static List<String> GetPageContent(int pageNum)
	 {
	 var myWebClient = new WebClient();
	 var url = "http://www.dbmeizi.com/?p=" + pageNum;
	 myWebClient.Credentials = CredentialCache.DefaultCredentials;
	 var stream = myWebClient.OpenRead(new Uri(url));

	 if (stream == null)
	 return null;

	 var sr = new StreamReader(stream, Encoding.UTF8);
	 var sb = new StringBuilder();
	 var line = string.Empty;
	 var flag = 0;

	 while ((line = sr.ReadLine()) != null)
	 {
	 sb.Append(line);
	 flag++;
	 }
	 if (flag == 0)
	 return null;

	 return PicUrlHelper.GetTextImageSrc(sb.ToString());
	 }

	 }
	}

	

	

	

	

	

	

	

	

	

	using System;
	using System.Collections.Generic;
	using System.Linq;
	using System.Runtime.CompilerServices;
	using System.Text;
	using System.Text.RegularExpressions;
	using System.Threading.Tasks;

	namespace douban
	{
	 public class PicUrlHelper
	 {

	 public static List<String> GetTextImageSrc(string context)
	 {

	 if (string.IsNullOrEmpty(context))
	 return null;

	 var partten = "<\\s*[I|i][m|M][g|G]\\s+([^>]*)\\s*>";
	 var imgSrcList = new List<string>();
	 var matches = Regex.Matches(context, partten);

	 //初步的pic地址
	 var ls = (from Match nextMatch in matches select nextMatch.Value).ToList();

	 partten = "[s|S][R|r][c|C]=[\"|'](.*?)[\"|']";

	 foreach (var s in ls)
	 {
	 var match = Regex.Match(s, partten).Value;
	 if (string.IsNullOrEmpty(match))
	 continue;

	 match = match.Replace("[s|S][R|r][c|C]=[\"|']", "").Replace("[\"|']", "").Replace("src=","").Replace("\"","");
	 imgSrcList.Add(match);
	 }

	 return imgSrcList;
	 }

	

	 }
	}

	

	

	

	using System;
	using System.Collections.Generic;
	using System.IO;
	using System.Linq;
	using System.Net;
	using System.Text;
	using System.Threading.Tasks;

	namespace douban
	{
	 public class FileHelper
	 {
	 public static void DownloadWebFile(string webFileUrl, string fileName, string parentPath)
	 {
	 if (!Directory.Exists(parentPath))
	 Directory.CreateDirectory(parentPath);
	 var myWebClient = new WebClient();
	 myWebClient.Credentials = CredentialCache.DefaultCredentials;
	 var inStream = myWebClient.OpenRead(new Uri(webFileUrl));
	 var fileFullPath = parentPath + fileName;

	 var fs = new FileStream(fileFullPath, FileMode.OpenOrCreate, FileAccess.Write);
	 var by = new byte[10240];
	 int c = 0;
	 while ((c = inStream.Read(by, 0, 10240)) > 0)
	 {
	 fs.Write(by, 0, c);
	 }
	 fs.Close();
	 }
	 }
	}
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　豆瓣　　美女　　抓取　
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