如何傳遞參數到POST協定的網址

    因為案子特殊需求，需要透過POST協定與其他廠商間接資料，所以針對這議題，作者想用簡單的教學，教大家如何用POST協定在Server端口設定，以及在client端的呼叫post的方法。

Server端:

    用c# Web API就能自動產生POST協定，但記得在POST協定傳回值改為object 才能接收來自JSON格式的參數

public object Post([FromBody] object value)   {       return value;   }

Client端:

var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://localhost:55285/api/values"); httpWebRequest.ContentType = "application/json";  //傳輸格式如果為JSON httpWebRequest.Method = "POST"; using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) { string str1 = "key"; string str2 ="value"; string json = "{\""+str1+"\":\""+str2+"\"}";  // 接收參數值 streamWriter.Write(json); streamWriter.Flush(); streamWriter.Close(); }   var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();   using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))    {          var result = streamReader.ReadToEnd();                             Newtonsoft.Json.Linq.JObject obj = (Newtonsoft.Json.Linq.JObject)Newtonsoft.Json.JsonConvert.DeserializeObject(result);          var objName = obj["Name"].ToString();          textBox1.Text = objName;      }