Use Asp.net (C #) to obtain the webpage source code (two methods)

Method 1: webrequest

Private string getstringbyurl (string strurl)
{
Webrequest WRT = webrequest. Create (strurl );
Webresponse wrse = WRT. getresponse ();
Stream STRM = wrse. getresponsestream ();
Streamreader sr = new streamreader (STRM, encoding. getencoding ("gb2312 "));
String strallstrm = Sr. readtoend ();
Return strallstrm;
}

Method 2: httpwebrequest

Public static string getpage (string URL, encoding)

{

Httpwebrequest request = NULL;

Httpwebresponse response = NULL;

Streamreader reader = NULL;

Try

{

Request = (httpwebrequest) webrequest. Create (URL );

Request. useragent = "www.svnhost.cn ";

Request. Timeout = 20000;

Request. allowautoredirect = false;

 

Response = (httpwebresponse) request. getresponse ();

If (response. statuscode = httpstatuscode. OK & response. contentlength <1024*1024)

{

Reader = new streamreader (response. getresponsestream (), encoding );

String html = reader. readtoend ();

 

Return HTML;

}

}

Catch

{

}

Finally

{

If (response! = NULL)

{

Response. Close ();

Response = NULL;

}
If (reader! = NULL)

Reader. Close ();

If (request! = NULL)

Request = NULL;

}

Return string. empty;

}

 

This article from the csdn blog, reproduced please indicate the source: http://blog.csdn.net/yefengzhixia/archive/2009/07/01/4312127.aspx