Learn Together rest (12.1) -- use rest in C #

Original address: http://rest.elkstein.org/

Learn rest: a tutorial

Send an http get request
The two main classes are in system.net.HttpwebrequestAndHttpwebresponse.

The following method sends a request and returns a long string:

static string HttpGet(string url) {  HttpWebRequest req = WebRequest.Create(url)                       as HttpWebRequest;  string result = null;  using (HttpWebResponse resp = req.GetResponse()                                as HttpWebResponse)  {    StreamReader reader =        new StreamReader(resp.GetResponseStream());    result = reader.ReadToEnd();  }  return result;}

Remember, if the URL contains parameters, it must be properly encoded (for example, the space is % 20, and so on ).The system. Web namespace is calledHttputilityClass, there is a static methodUrlencode for such Encoding.

Send an http post request
The URL in the POST request also needs to be encoded-in addition to form encoding, the method is as follows:

static string HttpPost(string url,     string[] paramName, string[] paramVal){  HttpWebRequest req = WebRequest.Create(new Uri(url))                        as HttpWebRequest;  req.Method = "POST";    req.ContentType = "application/x-www-form-urlencoded";  // Build a string with all the params, properly encoded.  // We assume that the arrays paramName and paramVal are  // of equal length:  StringBuilder paramz = new StringBuilder();  for (int i = 0; i < paramName.Length; i++) {    paramz.append(paramName[i]);    paramz.append("=");    paramz.append(HttpUtility.UrlEncode(paramVal[i]));    paramz.append("&");  }  // Encode the parameters as form data:  byte[] formData =      UTF8Encoding.UTF8.GetBytes(paramz.toString());  req.contentLength = formData.Length;  // Send the request:  using (Stream post = req.GetRequestStream())    {      post.Write(formData, 0, formData.Length);    }  // Pick up the response:  string result = null;  using (HttpWebResponse resp = req.GetResponse()                                as HttpWebResponse)    {      StreamReader reader =         new StreamReader(resp.GetResponseStream());    result = reader.ReadToEnd();  }  return result;}

For more examples, refer to Yahoo! This page in the Development Network.

 

Bydr. M. elkstein