C # Post/get method for implementing HTTP through Webclient/httpwebrequest

Body is the parameter to be passed, the format "roleid=1&uid=2"
Post Cotenttype fill in:
"Application/x-www-form-urlencoded"
Soap fills in: "Text/xml; Charset=utf-8 "
public static string posthttp (string URL, string body, string contentType)
{
HttpWebRequest HttpWebRequest = (HttpWebRequest) webrequest.create (URL);

Httpwebrequest.contenttype = ContentType;
Httpwebrequest.method = "POST";
Httpwebrequest.timeout = 20000;

byte[] Btbodys = Encoding.UTF8.GetBytes (body);
Httpwebrequest.contentlength = Btbodys.length;
Httpwebrequest.getrequeststream (). Write (Btbodys, 0, btbodys.length);

HttpWebResponse HttpWebResponse = (HttpWebResponse) httpwebrequest.getresponse ();
StreamReader StreamReader = new StreamReader (Httpwebresponse.getresponsestream ());
String responsecontent = Streamreader.readtoend ();

Httpwebresponse.close ();
Streamreader.close ();
Httpwebrequest.abort ();
Httpwebresponse.close ();

return responsecontent;
}

Post Method (HttpWebRequest)

<summary>
Basic authentication is required by WebClient post data to remote address;
The caller handles the exception itself
</summary>
<param name= "uri" ></param>
<param name= "Paramstr" >name= Zhang San &age=20</param>
<param name= "Encoding" > Please first confirm the encoding of the target page </param>
<param name= "username" ></param>
<param name= "Password" ></param>
<returns></returns>
public static string Request_webclient (String uri, String paramstr, Encoding Encoding, string Username, string password)
{
if (encoding = = NULL)
encoding = Encoding.UTF8;

string result = String. Empty;

WebClient WC = new WebClient ();

The header that must be added in the post mode
Wc. Headers.add ("Content-type", "application/x-www-form-urlencoded");

byte[] PostData = encoding. GetBytes (PARAMSTR);

if (!string. IsNullOrEmpty (username) &&!string. IsNullOrEmpty (password))
{
Wc. Credentials = Getcredentialcache (URI, username, password);
Wc. Headers.add ("Authorization", getauthorization (username, password));
}

byte[] ResponseData = WC. Uploaddata (URI, "POST", postdata); Get a stream of returned characters
return encoding. GetString (responsedata);//decoding
}

Post Method (WebClient)

public static string gethttp (string URL, HttpContext HttpContext)
{
String queryString = "?";

foreach (string key in HttpContext.Request.QueryString.AllKeys)
{
QueryString + = key + "=" + Httpcontext.request.querystring[key] + "&";
}

queryString = querystring.substring (0, querystring.length-1);

HttpWebRequest HttpWebRequest = (HttpWebRequest) webrequest.create (url + queryString);

Httpwebrequest.contenttype = "Application/json";
Httpwebrequest.method = "GET";
Httpwebrequest.timeout = 20000;

byte[] Btbodys = Encoding.UTF8.GetBytes (body);
Httpwebrequest.contentlength = Btbodys.length;
Httpwebrequest.getrequeststream (). Write (Btbodys, 0, btbodys.length);

HttpWebResponse HttpWebResponse = (HttpWebResponse) httpwebrequest.getresponse ();
StreamReader StreamReader = new StreamReader (Httpwebresponse.getresponsestream ());
String responsecontent = Streamreader.readtoend ();

Httpwebresponse.close ();
Streamreader.close ();

return responsecontent;
}

Get Method (HttpWebRequest)

<summary>
The Webrequest/webresponse class accesses the remote address and returns the result, requiring basic authentication;
The caller handles the exception itself
</summary>
<param name= "uri" ></param>
<param name= "Timeout" > Access timeout, unit milliseconds, if no time-out is set, incoming 0</param>
<param name= "Encoding" > if the specific encoding is not known, the incoming null</param>
<param name= "username" ></param>
<param name= "Password" ></param>
<returns></returns>
public static string Request_webrequest (string uri, int timeout, Encoding Encoding, string Username, string password)
{
string result = String. Empty;

WebRequest request = WebRequest.Create (new Uri (URI));

if (!string. IsNullOrEmpty (username) &&!string. IsNullOrEmpty (password))
{
Request. Credentials = Getcredentialcache (URI, username, password);
Request. Headers.add ("Authorization", getauthorization (username, password));
}

if (Timeout > 0)
Request. Timeout = timeout;

WebResponse response = Request. GetResponse ();
Stream stream = Response. GetResponseStream ();
StreamReader sr = encoding = = NULL? New StreamReader (Stream): New StreamReader (stream, encoding);

result = Sr. ReadToEnd ();

Sr. Close ();
Stream. Close ();

return result;
}

#region # Generate Http Basic Access Credentials #

private static CredentialCache Getcredentialcache (string uri, string Username, string password)
{
string authorization = string. Format ("{0}:{1}", username, password);

CredentialCache Credcache = new CredentialCache ();
Credcache.add (new Uri (URI), "Basic", new NetworkCredential (username, password));

return credcache;
}

private static string Getauthorization (string username, string password)
{
string authorization = string. Format ("{0}:{1}", username, password);

Return "Basic" + convert.tobase64string (new ASCIIEncoding (). GetBytes (authorization));
}

#endregion

Webrequest/webresponse of basic validation

C # Post/get method for implementing HTTP through Webclient/httpwebrequest