//契约的实现
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace TickService
{
public class TickService:ITicketService
{
//Tick tick = Tick.tick;
Tick tick = new Tick();
public void AddTick(int i)
{
tick.HowMany += i;
}
public int buyTickets(int i)
{
if (tick.HowMany > i)
{
tick.HowMany=tick.HowMany-i;
return i;
}
else
{
return 0;
}
}
public int GetRemainingNum()
{
return tick.HowMany;
}
}
}
//契约
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;
using System.Threading.Tasks;
namespace TickService
{
[ServiceContract]
public interface ITicketService
{
[OperationContract]
void AddTick(int i);
[OperationContract]
int buyTickets(int i);
[OperationContract]
int GetRemainingNum();
}
[DataContract]
public class Tick
{
int howMany = 10;
public static Tick tick = new Tick();
[DataMember]
public int HowMany
{
get { return howMany; }
set { howMany = value; }
}
}
}
//在WPF中调用的实现
ServiceHost host = new ServiceHost(typeof(TickService.TickService));
public MainWindow()
{
InitializeComponent();
//host.Open();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
host.Open();
info.Content = "Successful!!!";
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
host.Close();
info.Content = "Closed!!!";
}
具体就是,使用WPF作为宿主时,订票后,总票数不变,通过调试,发现,每次都重新执行了
Tick tick = new Tick();
使用控制台作为宿主的话,就不会发生这种情形