解决方案 »
- 哪里有免费空间!!!!!
- 如何使用.net编写上传视频功能
- 以前用VS2005开发了一个管理系统,后来装了VS2008后,用2008打开了那个项目,可是我还不会2008,我想继续用2005开发,怎么转回去啊?
- 如何在UpdatePanel中加载或运行JavaScript文件
- 安装了ORACLE9.i之后无法创建ASP.NET项目
- 求助高手:lable里面显示的文字如何设置其行距~~~...(在线等,解决马上结贴)
- 如何写QQ的正则表达式?
- 初学者有关数据绑定的求救,急! (毕业设计)
- 关于排序:为什么datagrid的header死活不变成超链接形式?
- dropdownlist显示的中文乱码怎么办?
- C#中的if语句
- fck 错误:The server didn't send back a proper XML response...
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace="System.IO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
void Page_Load(object sender, EventArgs e)
{
try
{
WebRequest request = WebRequest.Create("http://www.baidu.com/");
WebResponse response = request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("gb2312"));
tb.Text = reader.ReadToEnd();
reader.Close();
reader.Dispose();
response.Close();
}
catch (Exception ex)
{
tb.Text = ex.Message;
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>抓取网页内容 </title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="tb" runat="server" Width="500" Height="300" TextMode="multiLine"></asp:TextBox>
</div>
</form>
</body>
</html>
httpwebrequest抓取数据,正则获取特定数据
System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)";
System.Net.WebResponse response = request.GetResponse();
System.IO.Stream resStream = response.GetResponseStream();
System.IO.StreamReader sr = new System.IO.StreamReader(resStream, encoding);
string html = (sr.ReadToEnd());
resStream.Close();
sr.Close();
System.Net.WebClient wc = new System.Net.WebClient();
wc.Credentials = System.Net.CredentialCache.DefaultCredentials;
Byte[] pageData = wc.DownloadData(PageUrl);
string Content= System.Text.Encoding.Default.GetString(pageData);
Regex reg = new Regex(@"(?i)(?<=<span.*?id=""s"".*?>)[^<]+(?=</span>)");