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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 | using System;using System.Drawing;using System.Reflection;using System.Runtime.InteropServices;using System.Windows.Forms;using Microsoft.Win32;using mshtml;namespace SpiderTool{ #region COM Interfaces [ComImport, Guid("00000112-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] public interface IOleObject { void SetClientSite(IOleClientSite pClientSite); void GetClientSite(IOleClientSite ppClientSite); void SetHostNames(object szContainerApp, object szContainerObj); void Close(uint dwSaveOption); void SetMoniker(uint dwWhichMoniker, object pmk); void GetMoniker(uint dwAssign, uint dwWhichMoniker, object ppmk); void InitFromData(IDataObject pDataObject, bool fCreation, uint dwReserved); void GetClipboardData(uint dwReserved, IDataObject ppDataObject); void DoVerb(uint iVerb, uint lpmsg, object pActiveSite, uint lindex, uint hwndParent, uint lprcPosRect); void EnumVerbs(object ppEnumOleVerb); void Update(); void IsUpToDate(); void GetUserClassID(uint pClsid); void GetUserType(uint dwFormOfType, uint pszUserType); void SetExtent(uint dwDrawAspect, uint psizel); void GetExtent(uint dwDrawAspect, uint psizel); void Advise(object pAdvSink, uint pdwConnection); void Unadvise(uint dwConnection); void EnumAdvise(object ppenumAdvise); void GetMiscStatus(uint dwAspect, uint pdwStatus); void SetColorScheme(object pLogpal); } [ComImport, Guid("00000118-0000-0000-C000-000000000046"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] public interface IOleClientSite { void SaveObject(); void GetMoniker(uint dwAssign, uint dwWhichMoniker, object ppmk); void GetContainer(object ppContainer); void ShowObject(); void OnShowWindow(bool fShow); void RequestNewObjectLayout(); } [ComImport, Guid("6d5140c1-7436-11ce-8034-00aa006009fa"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), ComVisible(false)] public interface IServiceProvider { [return: MarshalAs(UnmanagedType.I4)] [PreserveSig] int QueryService(ref Guid guidService, ref Guid riid, out IntPtr ppvObject); } [ComImport, Guid("79EAC9D0-BAF9-11CE-8C82-00AA004BA90B"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), ComVisible(false)] public interface IAuthenticate { [return: MarshalAs(UnmanagedType.I4)] [PreserveSig] int Authenticate(ref IntPtr phwnd, ref IntPtr pszUsername, ref IntPtr pszPassword ); } #endregion public static class WebBrowserExtend { #region 代理安培版本 [DllImport(@"wininet", SetLastError = true, CharSet = CharSet.Auto, EntryPoint = "InternetSetOption", CallingConvention = CallingConvention.StdCall)] public static extern bool InternetSetOption ( int hInternet, int dmOption, IntPtr lpBuffer, int dwBufferLength ); /// <summary> /// 设置代理 /// </summary> /// <param name="webBrowser"></param> /// <param name="ip"></param> public static void SetProxy(this WebBrowser webBrowser, string ip) { //打开注册表 RegistryKey regKey = Registry.CurrentUser; string SubKeyPath = @"Software\Microsoft\Windows\CurrentVersion\Internet Settings"; RegistryKey optionKey = regKey.OpenSubKey(SubKeyPath, true); //更改健值，设置代理， optionKey.SetValue("ProxyEnable", 1); optionKey.SetValue("ProxyServer", ip); //激活代理设置 InternetSetOption(0, 39, IntPtr.Zero, 0); InternetSetOption(0, 37, IntPtr.Zero, 0); } /// <summary> /// 取消代理 /// </summary> /// <param name="webBrowser"></param> public static void Cancelproxy(this WebBrowser webBrowser) { //打开注册表 RegistryKey regKey = Registry.CurrentUser; const string subKeyPath = @"Software\Microsoft\Windows\CurrentVersion\Internet Settings"; RegistryKey optionKey = regKey.OpenSubKey(subKeyPath, true); //更改健值，取消代理 if (optionKey != null) optionKey.SetValue("ProxyEnable", 0); //激活代理设置 InternetSetOption(0, 39, IntPtr.Zero, 0); InternetSetOption(0, 37, IntPtr.Zero, 0); } #endregion #region 代理 public static Guid IID_IAuthenticate = new Guid("79eac9d0-baf9-11ce-8c82-00aa004ba90b"); public const int INET_E_DEFAULT_ACTION = unchecked((int)0x800C0011); public const int S_OK = unchecked((int)0x00000000); #region IOleClientSite Members #endregion #region IServiceProvider Members public static int QueryService(this WebBrowser webBrowser, ref Guid guidService, ref Guid riid, out IntPtr ppvObject) { int nRet = guidService.CompareTo(IID_IAuthenticate); // Zero returned if the compared objects are equal if (nRet == 0) { nRet = riid.CompareTo(IID_IAuthenticate); // Zero returned if the compared objects are equal if (nRet == 0) { ppvObject = Marshal.GetComInterfaceForObject(webBrowser, typeof(IAuthenticate)); return S_OK; } } ppvObject = new IntPtr(); return INET_E_DEFAULT_ACTION; } #endregion #region IAuthenticate Members private static string userName = ""; private static string passWord = ""; public static int Authenticate(this WebBrowser webBrowser, ref IntPtr phwnd, ref IntPtr pszUsername, ref IntPtr pszPassword) { IntPtr sUser = Marshal.StringToCoTaskMemAuto(userName); IntPtr sPassword = Marshal.StringToCoTaskMemAuto(passWord); pszUsername = sUser; pszPassword = sPassword; return S_OK; } #endregion public struct Struct_INTERNET_PROXY_INFO { public int dwAccessType; public IntPtr proxy; public IntPtr proxyBypass; }; [DllImport("wininet.dll", SetLastError = true)] private static extern bool InternetSetOption(IntPtr hInternet, int dwOption, IntPtr lpBuffer, int lpdwBufferLength); private static void RefreshIESettings(this WebBrowser webBrowser, string strProxy) { const int INTERNET_OPTION_PROXY = 38; const int INTERNET_OPEN_TYPE_PROXY = 3; Struct_INTERNET_PROXY_INFO struct_IPI; // Filling in structure struct_IPI.dwAccessType = INTERNET_OPEN_TYPE_PROXY; struct_IPI.proxy = Marshal.StringToHGlobalAnsi(strProxy); struct_IPI.proxyBypass = Marshal.StringToHGlobalAnsi("local"); // Allocating memory IntPtr intptrStruct = Marshal.AllocCoTaskMem(Marshal.SizeOf(struct_IPI)); // Converting structure to IntPtr Marshal.StructureToPtr(struct_IPI, intptrStruct, true); bool iReturn = InternetSetOption(IntPtr.Zero, INTERNET_OPTION_PROXY, intptrStruct, Marshal.SizeOf(struct_IPI)); } #endregion #region 委托 private delegate void NoParam(); private delegate void OneStringParam(string str); private delegate void TwoSstringParam(string str1, string str2); private delegate void ThreeStringParam(string str1, string str2, string str3); private delegate void FourStringParam(string str1, string str2, string str3, string str4); private delegate void FiveStringparam(string str1, string str2, string str3, string str4, string str5); //private delegate void OnParam(); private delegate Bitmap ReturnBitMapOnParam(); private delegate HtmlDocument GetHtmlDocumentDelegate(); private delegate string GetStringDelegate(); private delegate bool GetBoolDelegate(); private delegate WebBrowserReadyState GetWebBrowserReadyState(); #endregion #region 屏蔽弹框 private const string Js = "window.alert = null;\r\nwindow.confirm = null;\r\nwindow.open = null;\r\nwindow.showModalDialog = null;"; #endregion #region 获得页面htmlSource /// <summary> /// 当前页面的Document(异步成员) /// </summary> public static HtmlDocument Document(this WebBrowser webBrowser) { if (webBrowser.InvokeRequired)//控件的 Handle 是在与调用线程不同的线程上创建的（说明您必须通过 Invoke 方法对控件进行调用），为 true；否则为 false。 { IAsyncResult iar = webBrowser.BeginInvoke(new GetHtmlDocumentDelegate(delegate() { return webBrowser.Document; })); return (HtmlDocument)webBrowser.EndInvoke(iar); } else { return webBrowser.Document; } //set { _WebHtml = value; } } /// <summary> /// 当前页面的HtmlSource(异步成员) /// </summary> public static string DocumentText(this WebBrowser webBrowser) { if (webBrowser.InvokeRequired)//控件的 Handle 是在与调用线程不同的线程上创建的（说明您必须通过 Invoke 方法对控件进行调用），为 true；否则为 false。 { IAsyncResult iar = webBrowser.BeginInvoke(new GetStringDelegate(delegate() { return webBrowser.DocumentText; })); return webBrowser.EndInvoke(iar).ToString(); } else { return webBrowser.DocumentText; } } /// <summary> /// 当前页面的HtmlSource(异步成员) /// </summary> public static string InnerBodyHtml(this WebBrowser webBrowser) { if (webBrowser.InvokeRequired)//控件的 Handle 是在与调用线程不同的线程上创建的（说明您必须通过 Invoke 方法对控件进行调用），为 true；否则为 false。 { IAsyncResult iar = webBrowser.BeginInvoke(new GetStringDelegate(() => InnerBodyHtml(webBrowser))); return webBrowser.EndInvoke(iar).ToString(); } else { try { HtmlDocument document = webBrowser.Document; if (document != null) if (document.Body != null) return document.Body.InnerHtml; } catch (Exception) { } return ""; } } /// <summary> /// 得到当前页面的Html如果页面没加载完.会自动等待(异步成员) /// </summary> public static string WaitInnerBodyHtml(this WebBrowser webBrowser) { while (webBrowser.ReadyState != WebBrowserReadyState.Complete || IsBusy(webBrowser)) { System.Threading.Thread.Sleep(50); } return InnerBodyHtml(webBrowser); } /// <summary> /// 得到当前控件的状态(异步成员) /// </summary> public static WebBrowserReadyState ReadyState(this WebBrowser webBrowser) { if (webBrowser.InvokeRequired) { IAsyncResult iar = webBrowser.BeginInvoke(new GetWebBrowserReadyState(() => ReadyState(webBrowser))); return (WebBrowserReadyState)webBrowser.EndInvoke(iar); } else { return webBrowser.ReadyState; } } /// <summary> /// 指示当前控件是否在加载新文档(异步成员) /// </summary> public static bool IsBusy(this WebBrowser webBrowser) { if (webBrowser.InvokeRequired) { IAsyncResult iar = webBrowser.BeginInvoke(new GetBoolDelegate(() => IsBusy(webBrowser))); return (bool)webBrowser.EndInvoke(iar); } else { return IsBusy(webBrowser); } } #endregion #region 内存回收 [DllImport("kernel32.dll", EntryPoint = "SetProcessWorkingSetSize")] public static extern int SetProcessWorkingSetSize(IntPtr process, int minSize, int maxSize); /// <summary> /// 释放内存 /// </summary> public static void ClearMemory() { GC.Collect(); GC.WaitForPendingFinalizers(); if (Environment.OSVersion.Platform == PlatformID.Win32NT) { SetProcessWorkingSetSize(System.Diagnostics.Process.GetCurrentProcess().Handle, -1, -1); } } #endregion #region 控制页面元素 Js版本已注释不用 // /// <summary> // /// 根据ID设置TextBox的value // /// </summary> // /// <param name="webkitForm"></param> // /// <param name="id"></param> // /// <param name="value"></param> // public void SetValueByID(string id, string value) // { // string strjs = @" // document.getElementById('{0}').focus(); // document.getElementById('{0}').value = '{1}';"; // EvaluateJScript(strjs, id, value); // } // /// <summary> // /// 根据标签设置Value // /// </summary> // /// <param name="webkitForm"></param> // /// <param name="tagName"></param> // /// <param name="AttributeName"></param> // /// <param name="AttributeValue"></param> // /// <param name="innerText"></param> // public void SetValueByAttribute(string tagName, string AttributeName, string AttributeValue, string innerText, string value) // { // string strjs = @" // var hes = document.getElementsByTagName('{0}'); // for (var i = 0; i < hes.length; i ) {{ // var he = hes[i]; // if (he['{1}'] == 'undefined') // continue; // if (he['{1}'] == null) // continue; // if (he.innerText == 'undefined') // continue; // if (he.innerText == null) // continue; // if (he['{1}'] == '{2}' && he.innerText.indexOf('{3}')>=0) {{ // he.focus(); // he.innerText = '{4}'; // he.focus(); // break; // }} // }} //"; // EvaluateJScript(strjs, tagName, AttributeName, AttributeValue, innerText, value); // } // /// <summary> // /// 根据ID点击按钮 // /// </summary> // /// <param name="webkitForm"></param> // /// <param name="id"></param> // public void ClickByID(string id) // { // string strjs = "document.getElementById('{0}').click();"; // EvaluateJScript(strjs, id); // } // /// <summary> // /// 根据标签点击按钮 // /// </summary> // /// <param name="tagName"></param> // /// <param name="AttributeName"></param> // /// <param name="AttributeValue"></param> // /// <param name="innerText"></param> // public void ClickByAttribute(string tagName, string AttributeName, string AttributeValue, string innerText) // { // string strjs = @" // var hes = document.getElementsByTagName('{0}'); // for (var i = 0; i < hes.length; i ) {{ // var he = hes[i]; // if (he['{1}'] == 'undefined') // continue; // if (he['{1}'] == null) // continue; // if (he.innerText == 'undefined') // continue; // if (he.innerText == null) // continue; // if (he['{1}'] == '{2}' && he.innerText.indexOf('{3}')>=0) {{ // he.click(); // break; // }} // }} //"; // EvaluateJScript(strjs, tagName, AttributeName, AttributeValue, innerText); // } // private delegate void DelEvaluateJs(string strJS, params object[] args); // /// <summary> // /// 执行js // /// </summary> // /// <param name="strJS"></param> // private void EvaluateJScript(string strJS, params object[] args) // { // if (this.InvokeRequired) // { // this.BeginInvoke(new DelEvaluateJs(EvaluateJScript), strJS, args); // } // else // { // try // { // if (args.Length > 0) // strJS = string.Format(strJS, args); // //新建Html标记 // HtmlElement he = this.Document.CreateElement("script"); // he.SetAttribute("type", "text/javascript"); // he.SetAttribute("text", strJS); // //将元素嵌入到动态网页中 // this.Document.Body.AppendChild(he); // } // catch // { } // } // } #endregion #region 控制页面元素 /// <summary> /// 根据ID设置TextBox的value /// </summary> /// <param name="id"></param> /// <param name="value"></param> public static void SetValueById(this WebBrowser webBrowser, string id, string value) { if (webBrowser.InvokeRequired) { IAsyncResult ir = webBrowser.BeginInvoke(new Action(() => SetValueById(webBrowser, id, value))); webBrowser.EndInvoke(ir); } else { HtmlDocument doc = webBrowser.Document; if (doc != null) { HtmlElement ele = FindControlById(webBrowser, id, doc.All); if (ele != null) { HTMLInputElement hie = ele.DomElement as HTMLInputElement; if (hie != null) { hie.value = value; } } } } } /// <summary> /// 根据标签设置Value /// </summary> /// <param name="tagName"></param> /// <param name="AttributeName"></param> /// <param name="AttributeValue"></param> /// <param name="innerText"></param> /// <param name="value"></param> public static void SetValueByAttribute(this WebBrowser webBrowser, string tagName, string AttributeName, string AttributeValue, string innerText, string value) { if (webBrowser.InvokeRequired) { IAsyncResult ir = webBrowser.BeginInvoke(new Action(() => SetValueByAttribute(webBrowser, tagName, AttributeName, AttributeValue, innerText, value))); webBrowser.EndInvoke(ir); } else { //if (tagName == "textarea") //{ //HTMLInputTextElement hae = FindControlByAttValue(tagName, AttributeName, AttributeValue, innerText, this.Document.All).DomElement as HTMLInputTextElement; //hae.value = value; //} //else if (tagName == "input") //{ if (webBrowser.Document != null) { HTMLInputElement hie = FindControlByAttValue(webBrowser, tagName, AttributeName, AttributeValue, innerText, webBrowser.Document.All).DomElement as HTMLInputElement; if (hie != null) hie.value = value; } //} } } /// <summary> /// 根据ID点击按钮 /// </summary> /// <param name="id"></param> public static void ClickByID(this WebBrowser webBrowser, string id) { if (webBrowser.InvokeRequired) { IAsyncResult ir = webBrowser.BeginInvoke(new Action(() => ClickByID(webBrowser, id))); webBrowser.EndInvoke(ir); } else { if (webBrowser.Document != null) { HTMLInputElement hie = FindControlById(webBrowser, id, webBrowser.Document.All).DomElement as HTMLInputElement; HTMLAnchorElement hae = FindControlById(webBrowser, id, webBrowser.Document.All).DomElement as HTMLAnchorElement; if (hie != null) { hie.click(); } else if (hae != null) { hae.click(); } } } } /// <summary> /// 根据标签点击按钮 /// </summary> /// <param name="tagName"></param> /// <param name="AttributeName"></param> /// <param name="AttributeValue"></param> /// <param name="innerText"></param> public static void ClickByAttribute(this WebBrowser web, string tagName, string AttributeName, string AttributeValue, string innerText) { if (web.InvokeRequired) { IAsyncResult ir = web.BeginInvoke(new Action(() => ClickByAttribute(web, tagName, AttributeName, AttributeValue, innerText))); web.EndInvoke(ir); } else { if (tagName.ToLower() == "a") { if (web.Document != null) { HtmlElement he = FindControlByAttValue(web, tagName, AttributeName, AttributeValue, innerText, web.Document.All); if (he == null) { return; } HTMLAnchorElement ae = he.DomElement as HTMLAnchorElement; if (ae != null) ae.click(); } //HTMLAnchorElement hae = he.DomElement as HTMLAnchorElement; //if (hae != null) //{ // //if (hae.href != null && hae.href.StartsWith("http")) // //{ // hae.click(); // //} // //string onclick = Regex.Match(hae.outerHTML, "(?<=<A onclick=). ?(?=title)").Value; // //this.Document.InvokeScript(onclick); //} } else if (tagName.ToLower() == "input") { if (web.Document != null) { HtmlElement he = FindControlByAttValue(web, tagName, AttributeName, AttributeValue, innerText, web.Document.All); if (he != null) { HTMLInputElement hae = he.DomElement as HTMLInputElement; if (hae != null) hae.click(); } } } } } /// <summary> /// 反回页面元素 /// </summary> /// <param name="Tag"></param> /// <param name="AttName"></param> /// <param name="AttValue"></param> /// <param name="innerHtml"></param> /// <param name="listOfHtmlControls"></param> /// <returns></returns> public static HtmlElement FindControlByAttValue(this WebBrowser webBrowser, string Tag, string AttName, string AttValue, string innerText, HtmlElementCollection listOfHtmlControls) { try { foreach (HtmlElement element in listOfHtmlControls) { if (!string.IsNullOrEmpty(element.OuterHtml)) { if (element.TagName.ToLower() == Tag.ToLower()) { string OuterHtml = element.OuterHtml; if (OuterHtml == null) continue; OuterHtml = OuterHtml.Substring(0, OuterHtml.IndexOf(">")); OuterHtml = OuterHtml.ToLower(); if (OuterHtml.Contains(AttName.ToLower()) && OuterHtml.Contains(AttValue.ToLower())) { string e = element.InnerText; if (e == null) e = ""; if (e.Trim().ToLower().Contains(innerText.ToLower())) { return element; } } } } } } catch (Exception ex) { return null; } return null; } /// <summary> /// 根据ID反回页面元素 /// </summary> /// <param name="id"></param> /// <param name="listOfHtmlControls"></param> /// <returns></returns> private static HtmlElement FindControlById(this WebBrowser webBrowser, string id, HtmlElementCollection listOfHtmlControls) { if (listOfHtmlControls == null) { return null; } foreach (HtmlElement element in listOfHtmlControls) { if (element.Id == id) { return element; } } return null; } #endregion #region UserAgent private static string defaultUserAgent = null; [DllImport("urlmon.dll", CharSet = CharSet.Ansi)] private static extern int UrlMkSetSessionOption(int dwOption, string pBuffer, int dwBufferLength, int dwReserved); const int URLMON_OPTION_USERAGENT = 0x10000001; /// <summary> /// 在默认的UserAgent后面加一部分 /// </summary> public static void AppendUserAgent(this WebBrowser web, string appendUserAgent) { if (web.InvokeRequired) { IAsyncResult ir = web.BeginInvoke(new Action(() => AppendUserAgent(web, appendUserAgent))); web.EndInvoke(ir); } else { if (string.IsNullOrEmpty(defaultUserAgent)) { defaultUserAgent = GetDefaultUserAgent(); } string ua = defaultUserAgent ";" appendUserAgent; SetUserAgent(web, ua); } } /// <summary> /// 修改UserAgent /// </summary> public static void SetUserAgent(this WebBrowser webBrowser, string userAgent) { if (webBrowser.InvokeRequired) { IAsyncResult ir = webBrowser.BeginInvoke(new Action(() => SetUserAgent(webBrowser, userAgent))); webBrowser.EndInvoke(ir); } else { UrlMkSetSessionOption(URLMON_OPTION_USERAGENT, userAgent, userAgent.Length, 0); } } /// <summary> /// 一个很BT的获取IE默认UserAgent的方法 /// </summary> private static string GetDefaultUserAgent() { WebBrowser wb = new WebBrowser(); wb.Navigate("about:blank"); while (wb.IsBusy) Application.DoEvents(); object window = wb.Document.Window.DomWindow; Type wt = window.GetType(); object navigator = wt.InvokeMember("navigator", BindingFlags.GetProperty, null, window, new object[] { }); Type nt = navigator.GetType(); object userAgent = nt.InvokeMember("userAgent", BindingFlags.GetProperty, null, navigator, new object[] { }); return userAgent.ToString(); } #endregion #region cookie相关 /// <summary> /// 清除cookie /// </summary> public static void ClearCookie(this WebBrowser webBrowser) { if (webBrowser.InvokeRequired) { IAsyncResult ir = webBrowser.BeginInvoke(new Action(() => ClearCookie(webBrowser))); webBrowser.EndInvoke(ir); } else { webBrowser.Navigate("javascript:void((function(){var a,b,c,e,f;f=0;a=document.cookie.split('; ');for(e=0;e<a.length&&a[e];e ){f ;for(b='.' location.host;b;b=b.replace(/^(?:%5C.|[^%5C.] )/,'')){for(c=location.pathname;c;c=c.replace(/.$/,'')){document.cookie=(a[e] '; domain=' b '; path=' c '; expires=' new Date((new Date()).getTime()-1e11).toGMTString());}}}})())"); } } #endregion #region 滚动条 /// <summary> /// 滚动条 /// </summary> public static void ScrollTo(this WebBrowser webBrowser1) { if (webBrowser1.InvokeRequired) { webBrowser1.BeginInvoke(new Action(() => ScrollTo(webBrowser1))); } else { HtmlDocument document = webBrowser1.Document; if (document != null && document.Window != null && webBrowser1.Document != null && webBrowser1.Document.Body != null) { document.Window.ScrollTo(0, webBrowser1.Document.Body.ScrollRectangle.Height); } } } #endregion }} |
好例子网口号：伸出你的我的手 — 分享！
网友评论
小贴士
感谢您为本站写下的评论，您的评论对其它用户来说具有重要的参考价值，所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字，对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙，所以请不要反馈意义不大的重复字符，也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明，或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦，又没人会搭理，于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享，对搜索内容的合法性不具有预见性、识别性、控制性，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论平台是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定，若资源存在侵权或相关问题请联系本站客服人员，点此联系我们。关于更多版权及免责申明参见 版权及免责申明
支持(0) 盖楼(回复)