我有这样的WCF服务:
[ServiceContract( SessionMode=SessionMode.Required)]
public interface IService
{
[OperationContract(IsInitiating = true, IsTerminating = false)]
void login(string id);
[OperationContract(IsInitiating = false, IsTerminating = false)]
string getdata();
}
public class Service : IService
{
public void login(string hashedid)
{
if (username != "someusername" || password != "somepassword")
{
// can not get data
}
else
{
// can get data
}
}
public string getdata()
{
return "these are data";
}
}
如何编写方法登录并创建客户端应用程序? 谢谢你。
答案 0 :(得分:7)
[ServiceContract( SessionMode=SessionMode.Required)]
public interface IService
{
[OperationContract(IsInitiating = true, IsTerminating = false)]
void login(string username, string password);
[OperationContract(IsInitiating = false, IsTerminating = false)]
string getdata();
}
public class Service : IService
{
// todo: make threadsafe!
public static List<Guid> authenticated = new List<Guid>();
public void login(string username, string password)
{
if (username == "correctUsername" || password == "correctPassword")
{
// user has given correct username/pasword
Guid currentSessionId = OperationContext.Current.SessionId;
// note: can throw Exception when calling login twice or more, check if item exists first
authenticated.Add(currentSessionId);
}
}
public string getdata()
{
Guid currentSessionId = OperationContext.Current.SessionId;
if (List.Contains(currentSessionId)
{
return "these are data";
}
return String.Empty;
}
}
您可以按当前会话ID识别会话。用户正确进行身份验证后,您可以将此会话添加到经过身份验证的会话列表中。
介意:这只是一些伪代码。当会话被cloced时,会话ID应被删除,我使用的列表不是线程安全的......但我希望这可以帮助你找到正确的方向。