实例介绍
【实例简介】
【实例截图】
【核心代码】
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;//using System.Linq;using System.Text;//using System.Threading.Tasks;using System.Windows.Forms;using System.Diagnostics;using System.Net;using System.Text.RegularExpressions;using System.Threading;using System.Runtime.InteropServices;using System.IO;namespace BaiDuYun{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } class ListViewNF : System.Windows.Forms.ListView//此类是为了防止ListView控件加载数据时闪烁 { public ListViewNF() { // 开启双缓冲 this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true); // Enable the OnNotifyMessage event so we get a chance to filter out // Windows messages before they get to the form's WndProc this.SetStyle(ControlStyles.EnableNotifyMessage, true); } protected override void OnNotifyMessage(Message m) { //Filter out the WM_ERASEBKGND message if (m.Msg != 0x14) { base.OnNotifyMessage(m); } } } public struct strPCFileinfo { public string strName; public string strSize; public string strOwner; public string strTime; public string strCount; public string strRemark; public string strDownloadUrl; }; List<strPCFileinfo> file = new List<strPCFileinfo>();//这个应该可以替换下面的fileinfo数组，本版本未用 public static object locker = new object();//添加一个对象作为锁 private delegate void SearchResultCallBack(int index,strPCFileinfo file); private SearchResultCallBack searchResultCallBack; private void SearchResultMethod(int index,strPCFileinfo file)//往listview控件添加信息 { ListViewItem firstrecord = new ListViewItem(index.ToString()); firstrecord.SubItems.Add(file.strName); firstrecord.SubItems.Add(file.strSize); firstrecord.SubItems.Add(file.strOwner); firstrecord.SubItems.Add(file.strTime); firstrecord.SubItems.Add(file.strCount); firstrecord.SubItems.Add(file.strRemark); listView1.Items.Add(firstrecord); } int index; strPCFileinfo[] fileinfo; string htmlCompare=null; int page; private bool IsValideMethod(string url)//判断文件是否有效 { // DateTime start = DateTime.Now; HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); req.Method = "GET"; req.ContentType = "application/x-www-form-urlencoded"; req.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)"; HttpWebResponse res = (HttpWebResponse)req.GetResponse(); Stream ReceiveStream = res.GetResponseStream(); Encoding encode = System.Text.Encoding.UTF8; StreamReader sr = new StreamReader(ReceiveStream, encode); string strResult = ""; Char[] read = new Char[512]; int count = sr.Read(read, 0, 512); while (count > 0) { String str = new String(read, 0, count); strResult = str; count = sr.Read(read, 0, 256); } MatchCollection match3 = Regex.Matches(strResult, "<title>百度云 网盘-链接不存在</title>"); try { if (match3[0].Success) return false; else return true; } catch { } return true; } private void RegexMatchResult()//核心代码，正则匹配所有符合要求的资源列表 { //}\"[\s]*?(href=\"http://.*\") ?[^(文件名)]*立即关注 （匹配文件夹） //string strPat ="}\"[\\s]*?(href=\"http://.*\") ?[\\s\\S]*?文件名:(. ?) 文件大小:(. ?) 分享者:(. ?) 分享时间:(. ?) 下载次数:(. ?)</div>"; index=page =0; fileinfo = new strPCFileinfo[2000]; string strPat = "}\"[\\s]*?(href=\"http://.*\") ?[^(立即关注)]*?文件名:(. ?) 文件大小:(. ?) 分享者:(. ?) 分享时间:(. ?) 下载次数:(. ?)</div>"; Regex reg = new Regex(strPat); WebClient client = new WebClient(); client.Proxy = null; client.Encoding = Encoding.GetEncoding("utf-8"); string strUrl = string.Format(@"http://www.baidu.com/s?wd=site%3Apan.baidu.com%20{0}&pn={1}&ie=utf-8", textBox1.Text, page); string html = client.DownloadString(strUrl); bool IsSame = true; //string html = client.DownloadString(@"http://www.baidu.com/s?wd=site%3Apan.baidu.com%20易语言&pn=10&ie=utf-8"); lock (locker)//锁 { strPCFileinfo[] fileinfocompare = new strPCFileinfo[10]; while (IsSame && (page <= 2000)) { MatchCollection matches = Regex.Matches(html, strPat); //Trace.WriteLine("hello"); //fileinfo = new strPCFileinfo[matches.Count]; for (int i = 0; i < matches.Count; i ) { if (matches[i].Success) { //Trace.WriteLine(matches[i].Value); int j = index; index ; string strMatch = matches[i].Value; strMatch = strMatch.Replace("<em>", ""); strMatch = strMatch.Replace("</em>", ""); strMatch = strMatch.Replace("</div>", ""); strMatch = strMatch.Replace(" ", ""); //strMatch = strMatch.Replace("\n", ""); //Regex reg1 = new Regex("[a-zA-z] ://[^\\s]*"); MatchCollection match = Regex.Matches(strMatch, "[a-zA-z] ://[^\\s]*"); fileinfo[j].strDownloadUrl = match[0].Value.Substring(0, match[0].Value.IndexOf("\"")); fileinfo[j].strName = strMatch.Substring(strMatch.IndexOf("文件名") 4); fileinfo[j].strName = fileinfo[j].strName.Substring(0, fileinfo[j].strName.IndexOf("文件大小")); fileinfo[j].strSize = strMatch.Substring(strMatch.IndexOf("文件大小") 5); fileinfo[j].strSize = fileinfo[j].strSize.Substring(0, fileinfo[j].strSize.IndexOf("分享者")); fileinfo[j].strOwner = strMatch.Substring(strMatch.IndexOf("分享者") 4); fileinfo[j].strOwner = fileinfo[j].strOwner.Substring(0, fileinfo[j].strOwner.IndexOf("分享时间")); fileinfo[j].strTime = strMatch.Substring(strMatch.IndexOf("分享时间") 5); fileinfo[j].strTime = fileinfo[j].strTime.Substring(0, fileinfo[j].strTime.IndexOf("下载次数")); fileinfo[j].strCount = strMatch.Substring(strMatch.IndexOf("下载次数") 5); MatchCollection match2 = Regex.Matches(fileinfo[j].strCount, "[0-9] "); try { if (match2[0].Success) { fileinfo[j].strCount = match2[0].Value; } else fileinfo[j].strCount = "..."; } catch (Exception ex) { // MessageBox.Show(ex.Message); } if (fileinfo[j].strSize == "-") { fileinfo[j].strRemark = "文件夹"; } else { if(IsValideMethod(fileinfo[j].strDownloadUrl)==false) fileinfo[j].strRemark = "该资源已失效"; else fileinfo[j].strRemark = " "; } if (fileinfocompare[0].strOwner == fileinfo[j].strOwner && fileinfocompare[0].strTime == fileinfo[j].strTime) { IsSame = false; } else { fileinfocompare[i] = fileinfo[j]; //fileinfo[i].strSize = fileinfo[i].strSize.Substring(0, fileinfo[i].strSize.IndexOf("分享者")); listView1.Invoke(searchResultCallBack, index, fileinfo[j]); //Trace.WriteLine(strMatch); } } } htmlCompare = html; page = page 10; string strUrl1 = string.Format(@"http://www.baidu.com/s?wd=site%3Apan.baidu.com%20{0}&pn={1}&ie=utf-8", textBox1.Text, page); html = client.DownloadString(strUrl1); } } //锁 } private void button1_Click(object sender, EventArgs e)//单击搜索按钮触发事件 { listView1.Items.Clear(); //RegexMatch(); searchResultCallBack = new SearchResultCallBack(SearchResultMethod); Thread[] SearchResultThread = new Thread[5]; for (int p = 0; p < 5; p ) { SearchResultThread[p] = new Thread(RegexMatchResult); SearchResultThread[p].Start(); } //SearchResultThread.Start(); } //右击打开资源地址事件 [DllImport("shell32.dll")] public static extern int ShellExecute(IntPtr hwnd, StringBuilder lpszOp, StringBuilder lpszFile, StringBuilder lpszParams, StringBuilder lpszDir, int FsShowCmd); private void 打开资源地址ToolStripMenuItem_Click(object sender, EventArgs e) { if (listView1.SelectedIndices.Count > 0) { // 转到下载页ToolStripMenuItem.Visible = true; int index = listView1.SelectedIndices[0];//选中第index 1行 ShellExecute(IntPtr.Zero, new StringBuilder("Open"), new StringBuilder(fileinfo[index].strDownloadUrl), new StringBuilder(""), new StringBuilder(""), 1); } } }} |
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