我無法將參數傳遞給wcf Web服務。我的Web方法：RESTful WCF Web服務POST問題
[OperationContract] [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, UriTemplate = "playersJson2")] List<Person> GetPlayers(string name1, string name2);
當我做HTTP POST請求，我得到正確的JSON形式200 OK響應，但Web服務似乎輪不到paramters（1，名稱）。 Wireshark顯示如下：
你看到有什麼不對嗎？
更新：不確定它很重要，但我的服務使用「webHttpBinding」和發佈請求來自Android。
WCF不支持表格/編碼數據盒子外面。其他答案提到了一些替代方法（將輸入作爲Stream接收，將請求更改爲JSON）。另一種不強制你改變請求或操作的選擇是使用一個能夠理解表單urlencoded請求的自定義格式器。下面的代碼顯示了一個這樣做。
public class MyWebHttpBehavior : WebHttpBehavior
{
protected override IDispatchMessageFormatter GetRequestDispatchFormatter(OperationDescription operationDescription, ServiceEndpoint endpoint)
{
bool isRequestWrapped = this.IsRequestWrapped(operationDescription.Behaviors.Find<WebInvokeAttribute>());
IDispatchMessageFormatter originalFormatter = base.GetRequestDispatchFormatter(operationDescription, endpoint);
if (isRequestWrapped)
{
return new MyFormUrlEncodedAwareFormatter(
operationDescription,
originalFormatter,
this.GetQueryStringConverter(operationDescription));
}
else
{
return originalFormatter;
}
}
private bool IsRequestWrapped(WebInvokeAttribute wia)
{
WebMessageBodyStyle bodyStyle;
if (wia.IsBodyStyleSetExplicitly)
{
bodyStyle = wia.BodyStyle;
}
else
{
bodyStyle = this.DefaultBodyStyle;
}
return bodyStyle == WebMessageBodyStyle.Wrapped || bodyStyle == WebMessageBodyStyle.WrappedRequest;
}
class MyFormUrlEncodedAwareFormatter : IDispatchMessageFormatter
{
const string FormUrlEncodedContentType = "application/x-www-form-urlencoded";
OperationDescription operation;
IDispatchMessageFormatter originalFormatter;
QueryStringConverter queryStringConverter;
public MyFormUrlEncodedAwareFormatter(OperationDescription operation, IDispatchMessageFormatter originalFormatter, QueryStringConverter queryStringConverter)
{
this.operation = operation;
this.originalFormatter = originalFormatter;
this.queryStringConverter = queryStringConverter;
}
public void DeserializeRequest(Message message, object[] parameters)
{
if (IsFormUrlEncodedMessage(message))
{
XmlDictionaryReader bodyReader = message.GetReaderAtBodyContents();
bodyReader.ReadStartElement("Binary");
byte[] bodyBytes = bodyReader.ReadContentAsBase64();
string body = Encoding.UTF8.GetString(bodyBytes);
NameValueCollection pairs = HttpUtility.ParseQueryString(body);
Dictionary<string, string> values = new Dictionary<string, string>();
foreach (var key in pairs.AllKeys)
{
values.Add(key, pairs[key]);
}
foreach (var part in this.operation.Messages[0].Body.Parts)
{
if (values.ContainsKey(part.Name))
{
string value = values[part.Name];
parameters[part.Index] = this.queryStringConverter.ConvertStringToValue(value, part.Type);
}
else
{
parameters[part.Index] = GetDefaultValue(part.Type);
}
}
}
else
{
this.originalFormatter.DeserializeRequest(message, parameters);
}
}
public Message SerializeReply(MessageVersion messageVersion, object[] parameters, object result)
{
throw new NotSupportedException("This is a request-only formatter");
}
private static bool IsFormUrlEncodedMessage(Message message)
{
object prop;
if (message.Properties.TryGetValue(WebBodyFormatMessageProperty.Name, out prop))
{
if (((WebBodyFormatMessageProperty)prop).Format == WebContentFormat.Raw)
{
if (message.Properties.TryGetValue(HttpRequestMessageProperty.Name, out prop))
{
if (((HttpRequestMessageProperty)prop).Headers[HttpRequestHeader.ContentType].StartsWith(FormUrlEncodedContentType))
{
return true;
}
}
}
}
return false;
}
private static object GetDefaultValue(Type type)
{
if (type.IsValueType)
{
return Activator.CreateInstance(type);
}
else
{
return null;
}
}
}
}
[ServiceContract]
public class Service
{
[WebInvoke(BodyStyle = WebMessageBodyStyle.WrappedRequest)]
public string Concat(string text1, string text2)
{
return text1 + text2;
}
[WebInvoke(BodyStyle = WebMessageBodyStyle.WrappedRequest)]
public int Add(int x, int y)
{
return x + y;
}
}
class Program
{
public static void SendRequest(string uri, string method, string contentType, string body)
{
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(uri);
req.Method = method;
if (!String.IsNullOrEmpty(contentType))
{
req.ContentType = contentType;
}
if (body != null)
{
byte[] bodyBytes = Encoding.UTF8.GetBytes(body);
req.GetRequestStream().Write(bodyBytes, 0, bodyBytes.Length);
req.GetRequestStream().Close();
}
HttpWebResponse resp;
try
{
resp = (HttpWebResponse)req.GetResponse();
}
catch (WebException e)
{
resp = (HttpWebResponse)e.Response;
}
Console.WriteLine("HTTP/{0} {1} {2}", resp.ProtocolVersion, (int)resp.StatusCode, resp.StatusDescription);
foreach (string headerName in resp.Headers.AllKeys)
{
Console.WriteLine("{0}: {1}", headerName, resp.Headers[headerName]);
}
Console.WriteLine();
Console.WriteLine(new StreamReader(resp.GetResponseStream()).ReadToEnd());
Console.WriteLine();
Console.WriteLine(" *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* ");
Console.WriteLine();
}
static void Main(string[] args)
{
string baseAddress = "http://" + Environment.MachineName + ":8000/Service";
ServiceHost host = new ServiceHost(typeof(Service), new Uri(baseAddress));
host.AddServiceEndpoint(typeof(Service), new WebHttpBinding(), "").Behaviors.Add(new MyWebHttpBehavior());
host.Open();
Console.WriteLine("Host opened");
SendRequest(baseAddress + "/Add", "POST", "application/json", "{\"x\":22,\"y\":33}");
SendRequest(baseAddress + "/Add", "POST", "application/x-www-form-urlencoded", "x=22&y=33");
SendRequest(baseAddress + "/Add", "POST", "application/json", "{\"x\":22,\"z\":33}");
SendRequest(baseAddress + "/Add", "POST", "application/x-www-form-urlencoded", "x=22&z=33");
SendRequest(baseAddress + "/Concat", "POST", "application/json", "{\"text1\":\"hello\",\"text2\":\" world\"}");
SendRequest(baseAddress + "/Concat", "POST", "application/x-www-form-urlencoded", "text1=hello&text2=%20world");
SendRequest(baseAddress + "/Concat", "POST", "application/json", "{\"text1\":\"hello\",\"text9\":\" world\"}");
SendRequest(baseAddress + "/Concat", "POST", "application/x-www-form-urlencoded", "text1=hello&text9=%20world");
}
}
唯一看起來不合適的地方是playerJson2，但那只是因爲我以前從未使用過UriTemplate。你可以讓它在沒有UriTemplate的情況下工作，只需發佈到/WcfService1/Service1.svc/GetPlayers？您有沒有在項目中工作的其他WCF服務？
對不起，這是我的錯字，我有其他GET方法工作正常。 – bob
在這種情況下，您需要設置正確的
Content-Type，即
application/json。
對不起您的問題。更新您的UriTemplate如下：
[WebInvoke(Method = "POST",
ResponseFormat = WebMessageFormat.Json,
UriTemplate = "playersJson2?name1={name1}&name2={name2}")]
但請求內容類型不是JSON; JSON將是'{「name1」：「Bob」，「name2」：「Joanne」}'而不是'name1 = Bob＆name2 = Joanne1' – configurator
application/json將是來自WCF服務的響應的內容類型，而不是請求的內容類型 – Alexander
那麼這是另一個問題。查詢參數不能反序列化爲JSON對象（不是沒有使用一些黑客）。 – Mrchief
即使我沒有嘗試你的代碼，我認爲你是對的，WCF默認不支持非XML/JSON的東西。我會嘗試以json的形式發送請求。謝謝 – bob