HttpWebRequest不發帖

Question

按照這個問題，我POST JSON到http，但我沒有得到任何輸出，當我使用GET。我試圖POST json然後關閉流。我不需要關心答覆。要檢查我的POST是否正常工作，我寫了GET。

以下是我的代碼POST。

var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://localhost:1234/xxxxx/xxxx"); 
httpWebRequest.ContentType = "application/json"; 
httpWebRequest.Method = "POST"; 
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) 
{ 
    string eventData = "temp string"; 
    string jsonEvent = JsonConvert.SerializeObject(eventData, Formatting.None, new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore, Formatting = Formatting.Indented }); 
    streamWriter.Write(jsonEvent); 
} 

var httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse(); //getting "The remote server returned an error:" here 
using (var streamReader = new StreamReader(httpWebResponse.GetResponseStream())) 
{ 
    var result = streamReader.ReadToEnd(); 
} 

下面是我的代碼爲GET，我從msdn獲得。

WebRequest request = WebRequest.Create("http://localhost:1234/xxxxx/xxxx"); 
WebResponse response = request.GetResponse(); 
Console.WriteLine(((HttpWebResponse)response).StatusDescription); 
Stream dataStream = response.GetResponseStream(); 
StreamReader reader = new StreamReader(dataStream); 
string responseFromServer = reader.ReadToEnd(); 
Console.WriteLine(responseFromServer); 
reader.Close(); 
response.Close(); 

Answer 1

你從不要求迴應，所以它沒有提出請求。只需添加：

using (var response = request.GetResponse()) 
{ 
    // Use the response 
} 

需要注意的是你的「得到」的代碼不是異常安全的 - 它應該使用using語句，而不是調用Close明確。