Several ways to implement the post and get of HTTP

</pre></p><p></p><pre class= "CSharp" name= "code" ><strong><span style= " Color: #ff0000; " >1.post method (HttpWebRequest) </span></strong>

#region Post Method (HttpWebRequest)//body is the parameter to be passed, the format "roleid=1&uid=2"//post cotenttype Fill in://"application/ x-www-form-urlencoded "//soap fill in:" Text/xml; Charset=utf-8 "public static string posthttp (string URL, string body, string contentType) {HttpWebRequest HT        Tpwebrequest = (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; } #endregion

</pre></p><p></p><pre class= "CSharp" name= "code" ><strong><span style= " Color: #ff0000; " >2.post method (WebClient) </span></strong>

<summary>       ////via WebClient class post data to remote address, Basic authentication is required;        ///The caller handles exceptions themselves        //</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)         {&NBSP;&NBSP;&NBSP;&Nbsp;        if (encoding = = NULL)                  encoding = Encoding.UTF8;

string result = String. Empty;

WebClient WC = new WebClient ();

The header WC must be added to the post method. 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); Gets the return character stream return encoding. GetString (responsedata);//decoding}

</pre></p><p></p><pre class= "CSharp" name= "code" ><strong><span style= " Color: #ff0000; " >3.get method (HttpWebRequest) </span></strong>

         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; }

</pre></p><p></p><pre class= "CSharp" name= "code" ><strong><span style= " Color: #ff0000; " >4.basic verified Webrequest/webresponse</span></strong>

        <summary>       ////Access remote address via Webrequest/webresponse class and return results, Basic authentication required ;       ///caller handle exception        ///</ summary>       //<param name= "uri" ></param>        //<param name= "Timeout" > Access time-out, unit milliseconds, if no timeout is set, incoming 0</param>        //<param name= "encoding" > If you do not know the specific encoding, 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

Several ways to implement the post and get of HTTP