C#获取网页源代码的5种方法

方法一:

using ;

using ;

private string getHtml(string url)

{

WebClient myWebClient = new WebClient();

byte[] myDataBuffer = adData (url);

return ing(myDataBuffer);

}

方法二:

public string getHttp(string HttpUrl,string RefererUrl)

{

string html = "";

try

{

P Http = new PClass();

("GET", Url, false, null, null);

("GET",HttpUrl,false,null,null);

uestHeader("Referer",RefererUrl);

//uestHeader("Referer",RefererUrl);

uestHeader("Content-Type", "text/html;charset=gb2312");

("");

html = ing((byte[])seBody);

Http = null;

}

catch

{

}

return html;

}

public bool getweb(string strURL,out string buf)

{

buf="";

try

{

//Uri url=new Uri(strURL,false);

HttpWebRequest request;

request = (HttpWebRequest)(strURL);

="POST"; //Post请求方式

tType="text/html;charset=gb2312"; //内容类型

string paraUrlCoded = ode(""); //参数经过URL编码

byte[] payload;

payload = oding("GB2312").GetBytes(paraUrlCoded); //将URL编码后的字符串转化为字节

tLength = ; //设置请求的ContentLength

Stream writer = uestStream(); //获得请求流

(payload,0,); //将请求参数写入流

(); //关闭请求流

HttpWebResponse response;

response = (HttpWebResponse)ponse(); //获得响应流

Stream s;

s = ponseStream();

StreamReader objReader = new StreamReader(s,

oding("GB2312"));

string HTML = "";

string sLine ="";

int i = 0;

while (sLine!=null)

{

i++;

sLine = ne();

if (sLine!=null)

HTML += sLine;

}

//HTML = e("<","<");

//HTML = e(">",">");

buf=HTML;

return true;

}

catch (Exception x)

{

buf=ng();

return false;

}

}

带Cookie：

CookieContainer cc = new CookieContainer();

public bool getweb(string strURL,out string buf)

{

buf="";

try

{

HttpWebRequest request;

request = (HttpWebRequest)(strURL);

="POST"; //Post请求方式

tType="text/html;charset=gb2312"; //内容类型

string paraUrlCoded = ode(""); //参数经过URL编码

byte[] payload;

payload = oding("GB2312").GetBytes(paraUrlCoded); //将URL编码后的字符串转化为字节

tLength = ; //设置请求的ContentLength

Stream writer = uestStream(); //获得请求流

(payload,0,); //将请求参数写入流

(); //关闭请求流

HttpWebResponse response;

response = (HttpWebResponse)ponse(); //获得响应流

Stream s;

s = ponseStream();

StreamReader objReader = new StreamReader(s,oding("GB2312"));

string HTML = "";

string sLine ="";

int i = 0;

while (sLine!=null)

{

i++;

sLine = ne();

if (sLine!=null)

HTML += sLine;

}

buf=HTML;

return true;

}

catch (Exception x)

{

buf=ng();

return false;

}

}

public bool getweb(string strURL,out string buf,string postData)

{

buf="";

try

{

ASCIIEncoding encoding = new ASCIIEncoding();

byte[] data = es(postData);

HttpWebRequest request = (HttpWebRequest)(strURL);

= "POST";

tType = "application/x-www-form-urlencoded";

tLength = ;

Stream newStream = uestStream();

(data, 0, );

();

Container = cc;

HttpWebResponse response = (HttpWebResponse)ponse();

(s);

Stream stream = ponseStream();

string sHtml = new StreamReader(stream, t).ReadToEnd();

buf=sHtml;

return true;

}

catch (Exception x)

{

buf=ng();

return false;

}

}

private string getWebresourceFile1(string url)

{

WebClient myWebClient = new WebClient();

byte[] myDataBuffer = adData(url);

string SourceCode = ing(myDataBuffer);

saveSourceCode(SourceCode);

return SourceCode;

}

方法2

private string getWebresourceFile2(string url)

{

HttpWebRequest request=(HttpWebRequest)(ur

l);

HttpWebResponse response=(HttpWebResponse)ponse();

= "GET ";

Stream receiveStream=ponseStream();

StreamReader readStream=new StreamReader(receiveStream,t);

string SourceCode=End();

saveSourceCode(SourceCode);

();

();

return SourceCode;

}

方法3

private string getWebresourceFile3(string url)

{

WebClient wc = new WebClient();

tials = tCredentials;

Byte[] pageData = adData(url);

string SourceCode = ing(pageData);

saveSourceCode(SourceCode);

e();

return SourceCode;

}

方法4

private string getWebresourceFile4(string url)

{

WebClient wc = new WebClient();

tials = tCredentials;

Stream resStream = ad(url);

StreamReader sr = new StreamReader(resStream,t);

string SourceCode = End();

saveSourceCode(SourceCode);

();

e();

return SourceCode;

}

方法5

private string getWebresourceFile5(string url)

{

WebRequest request = (url);

WebResponse response = ponse();

Stream resStream = ponseStream();

StreamReader sr = new StreamReader(resStream, t);

string SourceCode = End();

saveSourceCode(SourceCode);

();

();

return SourceCode;

}