winform 读取网页源文件

System.Net.WebRequest request = System.Net.FileWebRequest.Create("www.google.com");
System.Net.WebResponse response = request.GetResponse();
System.IO.Stream stream = response.GetResponseStream();
//......

string Html = null;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://google.cn");
            request.Method = "Get";
            request.ContentType = "application/x-www-form-urlencoded ";
            WebResponse response = request.GetResponse();
            Stream s = response.GetResponseStream();
            StreamReader sr = new StreamReader(s, System.Text.Encoding.GetEncoding("GB2312"));
            Html = sr.ReadToEnd();
            s.Close();
            sr.Close();

            System.Net.WebRequest clinet = System.Net.WebRequest.Create("http://www.g.cn");            System.Net.HttpWebResponse aresponse = (System.Net.HttpWebResponse)clinet.GetResponse();
            Stream stream = aresponse.GetResponseStream();
            StreamReader reader = new StreamReader(stream, System.Text.Encoding.GetEncoding("GB2312"));
            string response = reader.ReadToEnd();
            reader.Close();
            stream.Close();

记得有一个方法直接可以进行WebDownload,用这个方法就好了,方法名给忘记了!

楼主要的代码是public string Get(string url, string paramList)
{
this.URL = url;
HttpWebResponse res=null;
string strResult = ""; try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url + "?" + paramList);
                CookieContainer cookieCon = new CookieContainer();
                req.AllowAutoRedirect = true;
                req.Referer = "http://www.mso.com.cn/odds/index_simple.asp";                req.CookieContainer = cookieCon;
                req.CookieContainer.SetCookies(new Uri(this.URL), cookieHeader);
                res = (HttpWebResponse)req.GetResponse();
                Stream receiveStream = res.GetResponseStream();
cookieHeader = req.CookieContainer.GetCookieHeader(new Uri(this.URL));
Encoding encode = System.Text.Encoding.GetEncoding(this.strEncoding);
StreamReader sr = new StreamReader(receiveStream, encode);
Char[] read = new Char[this.buffSize];
int count = sr.Read(read, 0, this.buffSize);
while (count > 0)
{
strResult += new String(read, 0, count);
count = sr.Read(read, 0, this.buffSize);
}
sr.Close();
receiveStream.Close();
}
catch(Exception e)
{
strResult = e.Message;
}
finally
{
if ( res != null )
{
res.Close();
}
}
return strResult;
}
稍作修改即可

  /// <summary>
        /// 取得指定页的 html代码
        /// </summary>
        /// <param name="url">指定的URL</param>
        /// <returns>返回得到的html代码</returns>
        /// 调用示例 string Ls_html=Gethtml("http://www.163.com");
        private string Gethtml(string url)
        {
            try
            {
                string html = string.Empty;
                string encoding = string.Empty;
                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
                request.Method = "get";
                request.ContentType = "text/html";
                request.Timeout = 60 * 1000;
                byte[] buffer = new byte[6072];
                using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
                {                    using (Stream reader = response.GetResponseStream())
                    {
                        reader.ReadTimeout = 60 * 1000;
                        using (MemoryStream memory = new MemoryStream())
                        {
                            int index = 1;
                            int sum = 0;
                            while (index > 0 && sum < 100 * 6072)
                            {
                                index = reader.Read(buffer, 0, 6072);
                                if (index > 0)
                                {
                                    memory.Write(buffer, 0, index);
                                    sum += index;
                                }
                            }
                            html = Encoding.GetEncoding("gb2312").GetString(memory.ToArray());                            if (string.IsNullOrEmpty(html))
                            {
                                return html;
                            }
                            else
                            {
                                Regex re = new Regex(@"charset=(?<charset>[\s\S]*?)[""|']");
                                Match m = re.Match(html.ToLower());
                                encoding = m.Groups["charset"].ToString();
                            }                            if (string.IsNullOrEmpty(encoding) || string.Equals(encoding.ToLower(), "gb2312"))
                            {
                                return html;
                            }
                            else
                            {
                                return Encoding.GetEncoding(encoding).GetString(memory.ToArray());
                            }
                        }
                    }
                }
            }
            catch (Exception)
            {
                return "";
            }
        }

System.Net.WebClient wc = new System.Net.WebClient();
   wc.Credentials = System.Net.CredentialCache.DefaultCredentials;
    Byte[] pageData = wc.DownloadData("");
   string html= System.Text.Encoding.Default.GetString(pageData);
   wc.Dispose();
   System.Net.WebRequest  request = System.Net.WebRequest.Create("");
   System.Net.WebResponse response = request.GetResponse();
   System.IO.Stream resStream = response.GetResponseStream();
   System.IO.StreamReader sr = new System.IO.StreamReader(resStream, System.Text.Encoding.Default);
   string html = sr.ReadToEnd();
   resStream.Close();
   sr.Close();

private void button1_Click(object sender, EventArgs e)
        {
string Html = null;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://topic.csdn.net/u/20100119/22/34eeedce-61b9-4080-82f8-53ffa0840685.html?43299#replyachor");
            request.Method = "Get";
            request.ContentType = "application/x-www-form-urlencoded ";
            WebResponse response = request.GetResponse();
            Stream s = response.GetResponseStream();
            StreamReader sr = new StreamReader(s, System.Text.Encoding.GetEncoding("GB2312"));
            Html = sr.ReadToEnd();
            textbox.Text=Html;
            s.Close();
            sr.Close();
}(:  ...........

private void button1_Click(object sender, EventArgs e)
        {
string Html = null;
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://topic.csdn.net/u/20100119/22/34eeedce-61b9-4080-82f8-53ffa0840685.html?43299#replyachor");
            request.Method = "Get";
            request.ContentType = "application/x-www-form-urlencoded ";
            WebResponse response = request.GetResponse();
            Stream s = response.GetResponseStream();
            StreamReader sr = new StreamReader(s, System.Text.Encoding.GetEncoding("GB2312"));
            Html = sr.ReadToEnd();
            textbox.Text=Html;
            s.Close();
            sr.Close();
}重贴

5楼的前辈你这个的确可行的但是我改了下网页就不行了！是不是ContentType 的值不对？或者网页编码不对？

private void Form1_Load(object sender, EventArgs e)
        {
            WebBrowser wb = new WebBrowser();
            wb.Navigate(@"http://www.baidu.com");
            wb.Dock = DockStyle.Fill;
            this.Controls.Add(wb);

        }

请问
div class="index_add"><a id="userpig" href="#;" class="index_add_mission" onclick="menu('view_pig.alc',this)"></a>他是通过一个控件弹出 'view_pig.alc 这篇子网页就算获取了主代码代码就是上面的这段控件的
怎么看出这个控件弹出子页的源文件？谢谢麻烦告诉我

调试易

winform 读取网页源文件

解决方案 »