下面是我测试下来的6种清除webbrowser中cookie的6种方法：
//方法一：调用 wininet.dll清除cookie (推荐) SuppressWininetBehavior(); //方法二：删除用户登录后的信息,这里相当于浏览器的注销功能,使用的是ie自带的功能 (推荐) HtmlDocument document = wb.Document; document.ExecCommand("ClearAuthenticationCache", false, null); //方法三：删除本机cookie 此方法会弹出ie清除cookie的弹出框 //Temporary Internet Files （Internet临时文件） //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8 //Cookies //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2 //History (历史记录) //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 1 //Form. Data （表单数据） //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 16 //Passwords (密码） //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 32 //Delete All （全部删除） //ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 2", "", ShowCommands.SW_HIDE); ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 255", "", ShowCommands.SW_HIDE); //方法四:使用webbrowser自带的清coookie的方法 (不推荐，清不掉session，实测无效) wb.Document.Cookie.Remove(0, (wb.Document.Cookie.Count() - 1)); //方法五：使用js清除cookie (不推荐，清不掉session) wb.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(/.$/,'')){document.cookie=(a[e]+'; domain='+b+'; path='+c+'; expires='+new Date((new Date()).getTime()-1e11).toGMTString());}}}})())"); //var a,b,c,e,f; //f=0; //a=document.cookie.split('; '); //b='.'+'baidu.com'; ////b='.'+'www.baidu.com'; //for(e=0;e<a.length;e++){ // //b='.'+location.host; // b=b.replace(/^(?:%5C.|[^%5C.]+)/,''); // c=location.pathname; // c=c.replace(/.$/,''); // ck = a[e]+'; domain='+b+'; path='+c+'; expires='+new Date((new Date()).getTime()-1e11).toGMTString(); // console.log(ck); // document.cookie=ck; //} //方法六：使用InternetSetCookie给cookie赋null值 (不推荐) //也可以给此Cookie赋空值:InternetSetCookie //InternetSetCookie("http://.qq.com/", NULL, "uin=; PATH=/; DOMAIN=qq.com");
方法一：
[System.Runtime.InteropServices.DllImport("wininet.dll", CharSet = System.Runtime.InteropServices.CharSet.Auto, SetLastError = true)] public static extern bool InternetSetOption(int hInternet, int dwOption, IntPtr lpBuffer, int dwBufferLength); /// <summary> /// 使用InternetSetOption操作wininet.dll清除webbrowser里的cookie /// </summary> private static unsafe void SuppressWininetBehavior() { /* SOURCE: http://msdn.microsoft.com/en-us/library/windows/desktop/aa385328%28v=vs.85%29.aspx * INTERNET_OPTION_SUPPRESS_BEHAVIOR (81): * A general purpose option that is used to suppress behaviors on a process-wide basis. * The lpBuffer parameter of the function must be a pointer to a DWORD containing the specific behavior to suppress. * This option cannot be queried with InternetQueryOption. * * INTERNET_SUPPRESS_COOKIE_PERSIST (3): * Suppresses the persistence of cookies, even if the server has specified them as persistent. * Version: Requires Internet Explorer 8.0 or later. */ int option = (int)3/* INTERNET_SUPPRESS_COOKIE_PERSIST*/; int* optionPtr = &option; bool success = InternetSetOption(0, 81/*INTERNET_OPTION_SUPPRESS_BEHAVIOR*/, new IntPtr(optionPtr), sizeof(int)); if (!success) { MessageBox.Show("Something went wrong ! Clear Cookie Failed!"); } }
方法二：
就只有这一句就好了：
//方法二：删除用户登录后的信息,这里相当于浏览器的注销功能,使用的是ie自带的功能 (推荐) HtmlDocument document = wb.Document; document.ExecCommand("ClearAuthenticationCache", false, null);
方法三：
//方法三：删除本机cookie 此方法会弹出ie清除cookie的弹出框 //Temporary Internet Files （Internet临时文件） //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 8 //Cookies //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 2 //History (历史记录) //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 1 //Form. Data （表单数据） //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 16 //Passwords (密码） //RunDll32.exe InetCpl.cpl,ClearMyTracksByProcess 32 //Delete All （全部删除） //ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 2", "", ShowCommands.SW_HIDE); ShellExecute(IntPtr.Zero, "open", "rundll32.exe", " InetCpl.cpl,ClearMyTracksByProcess 255", "", ShowCommands.SW_HIDE);
ShellExecute方法：
public enum ShowCommands : int { SW_HIDE = 0, SW_SHOWNORMAL = 1, SW_NORMAL = 1, SW_SHOWMINIMIZED = 2, SW_SHOWMAXIMIZED = 3, SW_MAXIMIZE = 3, SW_SHOWNOACTIVATE = 4, SW_SHOW = 5, SW_MINIMIZE = 6, SW_SHOWMINNOACTIVE = 7, SW_SHOWNA = 8, SW_RESTORE = 9, SW_SHOWDEFAULT = 10, SW_FORCEMINIMIZE = 11, SW_MAX = 11 } [DllImport("shell32.dll")] static extern IntPtr ShellExecute(IntPtr hwnd, string lpOperation, string lpFile, string lpParameters, string lpDirectory, ShowCommands nShowCmd);
方法四：
//方法四:使用webbrowser自带的清coookie的方法 (不推荐，清不掉session，实测无效) wb.Document.Cookie.Remove(0, (wb.Document.Cookie.Count() - 1));
方法五：
//方法五：使用js清除cookie (不推荐，清不掉session) wb.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(/.$/,'')){document.cookie=(a[e]+'; domain='+b+'; path='+c+'; expires='+new Date((new Date()).getTime()-1e11).toGMTString());}}}})())"); //var a,b,c,e,f; //f=0; //a=document.cookie.split('; '); //b='.'+'baidu.com'; ////b='.'+'www.baidu.com'; //for(e=0;e<a.length;e++){ // //b='.'+location.host; // b=b.replace(/^(?:%5C.|[^%5C.]+)/,''); // c=location.pathname; // c=c.replace(/.$/,''); // ck = a[e]+'; domain='+b+'; path='+c+'; expires='+new Date((new Date()).getTime()-1e11).toGMTString(); // console.log(ck); // document.cookie=ck; //}
将 wb.Navigate("javascript:void((function(){。。。}里的内容换成下面注释掉的代码，写好你要清cookier 的domain然后就可以清了，但清不掉session，这个是从外国网站上看来的，实际无效！
方法六：
//方法六：使用InternetSetCookie给cookie赋null值 (不推荐) //也可以给此Cookie赋空值:InternetSetCookie //InternetSetCookie("http://.qq.com/", NULL, "uin=; PATH=/; DOMAIN=qq.com");
关于InternetSetCookie这个方法自己网上搜索一下.
