using System; using System.Net; using System.Text; using System.IO; public class Test { // Specify the URL to receive the request. public static void Main (string[] args) { HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]); // Set some reasonable limits on resources used by this request request.MaximumAutomaticRedirections = 4; request.MaximumResponseHeadersLength = 4; // Set credentials to use for this request. request.Credentials = CredentialCache.DefaultCredentials; HttpWebResponse response = (HttpWebResponse)request.GetResponse (); Console.WriteLine ("Content length is {0}", response.ContentLength); Console.WriteLine ("Content type is {0}", response.ContentType);
// Get the stream associated with the response. Stream receiveStream = response.GetResponseStream (); // Pipes the stream to a higher level stream reader with the required encoding format. StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8); Console.WriteLine ("Response stream received."); Console.WriteLine (readStream.ReadToEnd ()); response.Close (); readStream.Close (); } }/* The output from this example will vary depending on the value passed into Main but will be similar to the following:Content length is 1542 Content type is text/html; charset=utf-8 Response stream received. <html> ... </html>*/取出内容后再分析，或者用正则表达式过滤
using System.Net;
using System.Text;
using System.IO;
public class Test
{
// Specify the URL to receive the request.
public static void Main (string[] args)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]); // Set some reasonable limits on resources used by this request
request.MaximumAutomaticRedirections = 4;
request.MaximumResponseHeadersLength = 4;
// Set credentials to use for this request.
request.Credentials = CredentialCache.DefaultCredentials;
HttpWebResponse response = (HttpWebResponse)request.GetResponse (); Console.WriteLine ("Content length is {0}", response.ContentLength);
Console.WriteLine ("Content type is {0}", response.ContentType);
// Get the stream associated with the response.
Stream receiveStream = response.GetResponseStream (); // Pipes the stream to a higher level stream reader with the required encoding format.
StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8); Console.WriteLine ("Response stream received.");
Console.WriteLine (readStream.ReadToEnd ());
response.Close ();
readStream.Close ();
}
}/*
The output from this example will vary depending on the value passed into Main
but will be similar to the following:Content length is 1542
Content type is text/html; charset=utf-8
Response stream received.
<html>
...
</html>*/取出内容后再分析，或者用正则表达式过滤
假设我要打开的网站是www.hao123.com
如何取得网页的文本、href链接、图片的src呢？谢谢先！