我已經向 WCF 服務添加了一個 rest API，不幸的是我并不真正了解如何正確處理 POST 呼叫。例如，在 WCF 服務中是這個保存函式：
介面 VB.Net：
<OperationContract()>
<WebInvoke(Method:="POST", UriTemplate:="/saveNewAZEntry", BodyStyle:=WebMessageBodyStyle.Wrapped, RequestFormat:=WebMessageFormat.Json, ResponseFormat:=WebMessageFormat.Json)>
Function SaveNewAZEntry(ByVal NewAZEntry As AZEntry) As AZEntry
函式 VB.Net：
Public Function SaveNewAZEntry(ByVal NewAZEntry As AZEntry) As AZEntry Implements IPMProService.SaveNewAZEntry
If NewAZEntry.start.Date = NewAZEntry.finished.Date And DateDiff(DateInterval.Minute, NewAZEntry.start, NewAZEntry.finished) >= My.Settings.MinAZDauer Then .......
現在我嘗試通過 API 在我的應用程式中呼叫此函式：
C＃：
private static HttpClient _client = new HttpClient();
private static string ServiceUrl = "http://localhost:64917/PMProService.svc/api";
[HttpPost]
internal static void SaveAZEntry(AZEntry azEntry)
{
var uri = new Uri($"{ServiceUrl}/saveNewAZEntry");
try
{
var jsonString = JsonConvert.SerializeObject(azEntry);
HttpContent content = new StringContent(jsonString, Encoding.UTF8, "application/json");
HttpResponseMessage response = _client.PostAsync(uri, content).Result;
response.EnsureSuccessStatusCode();
}
catch (Exception ex)
{
throw ex;
}
}
現在通過 API 呼叫函式，但物件沒有傳遞給函式并且仍然為空。我在這里做錯了什么？
uj5u.com熱心網友回復：
讓我知道這是否對您有幫助：
public void SendDataToWCF(AZEntry aZEntry)
{
var uri = new Uri("http://localhost:64917/PMProService.svc/api/saveNewAZEntry");
string strParam = string.Concat("param1=", aZEntry.param1, "¶m2=", aZEntry.param2);
byte[] data = Encoding.ASCII.GetBytes(strParam);
// Create request
HttpWebRequest webrequest = (HttpWebRequest)WebRequest.Create(uri);
webrequest.Method = "POST";
webrequest.ContentType = "application/x-www-form-urlencoded";
webrequest.ContentLength = data.Length;
//Send/Write data to your Stream/server
using (Stream newStream = webrequest.GetRequestStream())
{
newStream.Write(data, 0, data.Length);
}
// get the response
using (WebResponse resp = webrequest.GetResponse())
{
using (StreamReader reader = new StreamReader(resp.GetResponseStream()))
{
var resultS = reader.ReadToEnd();
// Do something with your response
}
}
}
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