用Asp.Net抓取web页面
演示:
http://www.aspxboy.com/demo/286.aspx
代码高亮显示(HightLight in Source Code Viewer)
http://www.aspxboy.com/code/default.aspx/S7s2zPJbeI9PJA/OK
HpAVwVaUEhf02EgEOgeB3Yd5Z7fLL3ZNgdv7XIqertUOYm9kbQ62
LshbJBwvWPBBYa4EyVMhvMhyEDPH8chU5ornn8=.Aspx
<%@ Page language="C#" Trace="True" %>
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace="System.IO" %>
<html>
<head>
<SCRIPT runat="server">
void Page_Load(Object sender, EventArgs e) {
WebRequest req = WebRequest.Create("http://www.im286.com/index.php");
string urliii="src="; //图片使用绝对连接
urliii+="http://www.im286.com/";
try {
WebResponse result = req.GetResponse();
Stream ReceiveStream = result.GetResponseStream();
Byte[] read = new Byte[512];
int bytes = ReceiveStream.Read(read, 0, 512);
lblHTML.Text = "";
while (bytes > 0)
{
// 注意：
// 下面假定响应使用 gb2312 作为编码方式。
// 如果内容以 ANSI 代码页形式（例如，932）发送，则使用类似下面的语句：
//Encoding encode = System.Text.Encoding.GetEncoding("shift-jis");
Encoding encode = System.Text.Encoding.GetEncoding("gb2312");
lblHTML.Text = lblHTML.Text + encode.GetString(read, 0, bytes);
bytes = ReceiveStream.Read(read, 0, 512);
}
} catch(Exception) {
lblHTML.Text = "检索页时出错";
}
lblHTML.Text = lblHTML.Text.Replace("src=",""+urliii+"");
lblHTML.Text = lblHTML.Text.Replace("\"","");
}
</SCRIPT>
</head>
<body>
<form method="post" action="Webrequest.aspx" runat="server">
<asp:Label runat=server ID="lblHTML" Rows="30" Cols="80" EnableViewState="false" Wrap="True"></asp:Label>
</form>
</body>
</html>
