如何使用Json將數據從獲勝形式發送到Web？

Question

我無法正確傳遞價值。這段代碼執行成功但空值達到指定頁面（」 http://............）。

Product objProduct = new Product(); 
objProduct.id = "1"; 
objProduct.name = "Sana"; 
string json = JsonConvert.SerializeObject(objProduct); 

var baseAddress = "http://.................."; 

var http = (HttpWebRequest)WebRequest.Create(new Uri(baseAddress)); 
http.Accept = "application/json"; 
http.ContentType = "application/json"; 
http.Method = "POST"; 

string parsedContent = json; 
ASCIIEncoding encoding = new ASCIIEncoding(); 
Byte[] bytes = encoding.GetBytes(parsedContent); 

Stream newStream = http.GetRequestStream(); 
newStream.Write(bytes, 0, bytes.Length); 
newStream.Close(); 

var response = http.GetResponse(); 

var stream = response.GetResponseStream(); 
var sr = new StreamReader(stream); 
var content = sr.ReadToEnd(); 

Answer 1

另一種簡單的解決方案，我用它來製作的要求是WebClient和你代碼可以是這樣的

Product objProduct = new Product(); 
    objProduct.id = "1"; 
    objProduct.name = "Sana"; 
    string json = JsonConvert.SerializeObject(objProduct); 
    var baseAddress = "http://.................."; 

    var respond = ""; 

    //Post request 
    using (WebClient wc = new WebClient()) 
    { 
    wc.Encoding = Encoding.UTF8; 
    respond = wc.UploadString(baseAddress, json); 
    } 

響應變量在這裏將有API返回結果

Answer 2

你可以使用Microsoft.Net.Http

using (var client = new HttpClient()) 
{ 
    var objProduct = new Product(); 
    objProduct.id = "1"; 
    objProduct.name = "Sana"; 
    string json = JsonConvert.SerializeObject(objProduct); 
    var content = new StringContent(json); 
    var result = await client.PostAsync("http://localhost/product/", content); 
    var responseAsString = await result.Content.ReadAsStringAsync(); 
}