C#WebBrowser怎么获取和设置Cookie的方法

Posted 2023-03-28

参考技术A 如果要设置也是一样的
[code=csharp]//设置Cookie
webBrowser1.Document.Cookie=strcookie;[/code]
但是有时候使用这种方法会获取不全，或者是获取不到，下面我提供一个方法

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//取当前webBrowser登录后的Cookie值
[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool InternetGetCookieEx(string pchURL, string pchCookieName, StringBuilder pchCookieData, ref int pcchCookieData, int dwFlags, object lpReserved);
//取出Cookie，当登录后才能取
private static string GetCookieString(string url)

// Determine the size of the cookie
int datasize = 256;
StringBuilder cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x00002000, null))

if (datasize < 0)
return null;
// Allocate stringbuilder large enough to hold the cookie
cookieData = new StringBuilder(datasize);
if (!InternetGetCookieEx(url, null, cookieData, ref datasize, 0x00002000, null))
return null;

return cookieData.ToString();


在很多情况下我们会使用间进程的webBrowser去实现一些网页的请求和抓去，这个时候有部分网页是取不到Cookie的，那怎么办呢？下面我提供一个方法，应该99%的都能取到
使用方法也很简单
[code=csharp]//获取Cookie
string strcookie=GetCookieString(“你要获取Cookie的URl”);[/code]例如
[code=csharp]//获取Cookie
string strcookie=GetCookieString(“http://www.sufeinet.com”);[/code]
这样获取的是sufeinet.com的Cookie信息 参考技术B 1.在WebBrowser中获取Cookie

CookieContainer myCookieContainer = new CookieContainer();

string cookieStr = webBrowser1.Document.Cookie;
string[] cookstr = cookieStr.Split(';');
foreach (string str in cookstr)

string[] cookieNameValue = str.Split('=');
Cookie ck = new Cookie(cookieNameValue[0].Trim ().ToString(), cookieNameValue[1].Trim ().ToString());
ck.Domain = "www.google.com";
myCookieContainer.Add(ck);


WebClient设置cookie!
WebClient wc = new WebClient();
wc.Headers.Add("Cookie", "phpSESSID=" + cookie + ";");
// 注意，这里是Cookie，不是Set-Cookie
byte[] re = wc.UploadData(Global.RootPath + "test.php", new byte[0]);
System.Text.UTF8Encoding converter = new System.Text.UTF8Encoding();
string str = converter.GetString(re);

2. 在WebBrowser中设置Cookie
public partial class WebBrowserControl : Form

private String url;

[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
public static extern bool InternetSetCookie(string lpszUrlName, string lbszCookieName, string lpszCookieData);

public WebBrowserControl(String path)

this.url = path;
InitializeComponent();

// set cookie
InternetSetCookie(url, "JSESSIONID", Globals.ThisDocument.sessionID);

// navigate
webBrowser.Navigate(url);



3.将WebBrowser的cookie信息传给HttpWebRequest

先建一个"CookieContainer" 把WebBrowser中的Cookie保存在里面

//在WebBrowser中登录cookie保存在WebBrowser.Document.Cookie中
CookieContainer myCookieContainer = new CookieContainer();

//String 的Cookie　要转成　Cookie型的　并放入CookieContainer中
string cookieStr = webBrowser1.Document.Cookie;
string[] cookstr = cookieStr.Split(';');

foreach (string str in cookstr)

string[] cookieNameValue = str.Split('=');
Cookie ck = new Cookie(cookieNameValue[0].Trim().ToString(), cookieNameValue[1].Trim().ToString());
ck.Domain = "www.abc.com";//必须写对
myCookieContainer.Add(ck);


HttpWebRequest hreq = (HttpWebRequest)HttpWebRequest.Create("http://www.abc.com/search.asp");
hreq.Method = "POST";
hreq.ContentType = "application/x-www-form-urlencoded";

//自己创建的CookieContainer
hreq.CookieContainer = myCookieContainer;

string postdata = "id=2005&action=search&name=";
byte[] byte1 = Encoding.ASCII.GetBytes(postdata);
hreq.ContentLength = byte1.Length;

Stream poststream = hreq.GetRequestStream();
poststream.Write(byte1, 0, byte1.Length);
poststream.Close();

HttpWebResponse hres = (HttpWebResponse)hreq.GetResponse();本回答被提问者采纳