有没有人能够在 Windows Phone Series 7 模拟器上使用 WCF 进行通信?
过去两天我一直在尝试,这对我来说正在发生。我可以让普通的 Silverlight 控件在 Silverlight 3 和 Silverlight 4 中工作,但不能在手机版本中工作。这是我尝试过的两个版本:
版本 1 - 使用异步模式
BasicHttpBinding basicHttpBinding = new BasicHttpBinding();
EndpointAddress endpointAddress = new EndpointAddress("http://localhost/wcf/Authentication.svc");
Wcf.IAuthentication auth1 = new ChannelFactory<Wcf.IAuthentication>(basicHttpBinding, endpointAddress).CreateChannel(endpointAddress);
AsyncCallback callback = (result) =>
{
Action<string> write = (str) =>
{
this.Dispatcher.BeginInvoke(delegate
{
//Display something
});
};
try
{
Wcf.IAuthentication auth = result.AsyncState as Wcf.IAuthentication;
Wcf.AuthenticationResponse response = auth.EndLogin(result);
write(response.Success.ToString());
}
catch (Exception ex)
{
write(ex.Message);
System.Diagnostics.Debug.WriteLine(ex.Message);
}
};
auth1.BeginLogin("user0", "test0", callback, auth1);
这个版本打破了这一行:
Wcf.IAuthentication auth1 = new ChannelFactory<Wcf.IAuthentication>(basicHttpBinding, endpointAddress).CreateChannel(endpointAddress);
throw
System.NotSupportedException
.异常不是很具有描述性,调用堆栈同样不是很有帮助:at System.ServiceModel.DiagnosticUtility.ExceptionUtility.BuildMessage(Exception x) at System.ServiceModel.DiagnosticUtility.ExceptionUtility.LogException(Exception x) at System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(Exception e) at System.ServiceModel.ChannelFactory`1.CreateChannel(EndpointAddress address) at WindowsPhoneApplication2.MainPage.DoLogin() ....
Version 2 - Blocking WCF call
Here is the version that doesn't use the async pattern.
[System.ServiceModel.ServiceContract]
public interface IAuthentication
{
[System.ServiceModel.OperationContract]
AuthenticationResponse Login(string user, string password);
}
public class WcfClientBase<TChannel> : System.ServiceModel.ClientBase<TChannel> where TChannel : class {
public WcfClientBase(string name, bool streaming)
: base(GetBinding(streaming), GetEndpoint(name)) {
ClientCredentials.UserName.UserName = WcfConfig.UserName;
ClientCredentials.UserName.Password = WcfConfig.Password;
}
public WcfClientBase(string name) : this(name, false) {}
private static System.ServiceModel.Channels.Binding GetBinding(bool streaming) {
System.ServiceModel.BasicHttpBinding binding = new System.ServiceModel.BasicHttpBinding();
binding.MaxReceivedMessageSize = 1073741824;
if(streaming) {
//binding.TransferMode = System.ServiceModel.TransferMode.Streamed;
}
/*if(XXXURLXXX.StartsWith("https")) {
binding.Security.Mode = BasicHttpSecurityMode.Transport;
binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;
}*/
return binding;
}
private static System.ServiceModel.EndpointAddress GetEndpoint(string name) {
return new System.ServiceModel.EndpointAddress(WcfConfig.Endpoint + name + ".svc");
}
protected override TChannel CreateChannel()
{
throw new System.NotImplementedException();
}
}
auth.Login("test0", "password0");
此版本在
System.ServiceModel.ClientBase<TChannel>
中崩溃构造函数。调用堆栈有点不同:在 System.Reflection.MethodInfo.get_ReturnParameter()
在 System.ServiceModel.Description.ServiceReflector.HasNoDisposableParameters(MethodInfo methodInfo)
在 System.ServiceModel.Description.TypeLoader.CreateOperationDescription(ContractDescription contractDescription,MethodInfo methodInfo,MessageDirection 方向,ContractReflectionInfo reflectInfo,ContractDescription declaringContract)
在 System.ServiceModel.Description.TypeLoader.CreateOperationDescriptions(ContractDescription contractDescription,ContractReflectionInfo 反射信息,类型 contractToGetMethodsFrom,ContractDescription declaringContract,MessageDirection 方向)
在 System.ServiceModel.Description.TypeLoader.CreateContractDescription(ServiceContractAttribute contractAttr,类型 contractType,类型 serviceType,ContractReflectionInfo&reflectionInfo,对象 serviceImplementation)
在 System.ServiceModel.Description.TypeLoader.LoadContractDescriptionHelper(类型 contractType,类型 serviceType,对象 serviceImplementation)
在 System.ServiceModel.Description.TypeLoader.LoadContractDescription(类型 contractType)
在 System.ServiceModel.ChannelFactory
1.CreateDescription()
at System.ServiceModel.ChannelFactory.InitializeEndpoint(Binding binding, EndpointAddress address)
at System.ServiceModel.ChannelFactory
1..ctor(绑定(bind)绑定(bind),EndpointAddress remoteAddress)在 System.ServiceModel.ClientBase
1..ctor(Binding binding, EndpointAddress remoteAddress)
at Wcf.WcfClientBase
1..ctor(字符串名称, bool 流)在 Wcf.WcfClientBase`1..ctor(字符串名称)
在 Wcf.AuthenticationClient..ctor()
在 WindowsPhoneApplication2.MainPage.DoLogin()
...
有任何想法吗?
最佳答案
正如 scottmarlowe 指出的那样,自动生成的服务引用是有效的。我的任务是弄清楚为什么该死的 hell 它可以工作,而手动版本却不能。
我找到了罪魁祸首,它是ChannelFactory
.出于某种原因new ChannelFactory<T>().CreateChannel()
只是抛出一个异常。我找到的唯一解决方案是提供您自己的 channel 实现。这涉及:
现在,ClientBase 已经通过
ChannelFactory
提供了一个 channel 工厂的实例。属性(property)。如果您只是调用CreateChannel
关闭你会得到同样的异常(exception)。您需要从 CreateChannel
中实例化您在步骤 3 中定义的 channel 。 .这是所有看起来如何组合在一起的基本线框。
[DataContractAttribute]
public partial class AuthenticationResponse {
[DataMemberAttribute]
public bool Success {
get; set;
}
[System.ServiceModel.ServiceContract]
public interface IAuthentication
{
[System.ServiceModel.OperationContract(AsyncPattern = true)]
IAsyncResult BeginLogin(string user, string password, AsyncCallback callback, object state);
AuthenticationResponse EndLogin(IAsyncResult result);
}
public class AuthenticationClient : ClientBase<IAuthentication>, IAuthentication {
public AuthenticationClient(System.ServiceModel.Channels.Binding b, EndpointAddress ea):base(b,ea)
{
}
public IAsyncResult BeginLogin(string user, string password, AsyncCallback callback, object asyncState)
{
return base.Channel.BeginLogin(user, password, callback, asyncState);
}
public AuthenticationResponse EndLogin(IAsyncResult result)
{
return Channel.EndLogin(result: result);
}
protected override IAuthentication CreateChannel()
{
return new AuthenticationChannel(this);
}
private class AuthenticationChannel : ChannelBase<IAuthentication>, IAuthentication
{
public AuthenticationChannel(System.ServiceModel.ClientBase<IAuthentication> client)
: base(client)
{
}
public System.IAsyncResult BeginLogin(string user, string password, System.AsyncCallback callback, object asyncState)
{
object[] _args = new object[2];
_args[0] = user;
_args[1] = password;
System.IAsyncResult _result = base.BeginInvoke("Login", _args, callback, asyncState);
return _result;
}
public AuthenticationResponse EndLogin(System.IAsyncResult result)
{
object[] _args = new object[0];
AuthenticationResponse _result = ((AuthenticationResponse)(base.EndInvoke("Login", _args, result)));
return _result;
}
}
}
TLDR; 如果您想在 WP7 上使用您自己的 WCF 代码,您需要创建自己的 channel 类,而不是依赖
ChannelFactory
.
关于wcf - 在 Windows Phone 7 上使用 WCF 的 System.UnsupportedException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/2474759/