WCF服务端调用client.
wcf服务端
1，新建一个“windows窗口程序”名称为WCFServer2。
2。然后加入一个“WCF服务”名称为Service1。
详细步骤为：解决方式试图中，选中“WCFServer2”项目，右键，在弹出菜单中选择“加入->新建项”。
3，双击主窗口，在它的Load事件中编写代码启动wcf服务：BasicHttpBinding方式启动wcf服务。此文件代码例如以下：
using System.ServiceModel;
using System.ServiceModel.Description;
//…
ServiceHost m_ServiceHost;
//…
private void Form1_Load(object sender, EventArgse)
{
//NetTcpBinding方式启动wcf服务
m_ServiceHost = new ServiceHost(typeof(Service1));//Service1是wcf服务的类名称
NetTcpBindingbinding = new NetTcpBinding();
UribaseAddress = new Uri(string.Format("net.tcp://localhost:10086/WCFHostServer/Service1"));
m_ServiceHost.AddServiceEndpoint(typeof(IService1),binding, baseAddress);
m_ServiceHost.Open();
}
4，在 IService1.cs中添加一个方法Init,同一时候添加ISvrToCliCallBack接口.
namespace WCFServer2
{
// 注意: 使用“重构”菜单上的“重命名”命令，能够同一时候更改代码和配置文件里的接口名“IService1”。
[ServiceContract(CallbackContract= typeof(ISvrToCliCallBack))]
public interface IService1
{
[OperationContract]
voidDoWork();
[OperationContract]
voidInit();
}
public interface ISvrToCliCallBack
{
[OperationContract(IsOneWay= true)]
voidNotifyClientMsg(string devStateInfo);
}
}
5, 在Service1.cs中实现接口的方法Init初始化。
public static ISvrToCliCallBack userCallBack;
//...
public void Init()
{
userCallBack = OperationContext.Current.GetCallbackChannel<ISvrToCliCallBack>();
}
6,主窗体添加button。
private voidbutton1_Click(object sender, EventArgs e)
{
Service1.userCallBack.NotifyClientMsg("服务端给client通知啦");
}
7。改动app.config，WCFServer2.Service1的binding由"wsHttpBinding"改成"wsDualHttpBinding"
客服端
1，新建一个“windows窗口程序”名称为WCFClient2。
2，添加服务引用。
服务引用地址到服务端的app.config查看，就是baseAddress。
3.在FormClient中继承接口IService1Callback，实现方法NotifyClientMsg
4。主窗体启动是初始化。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using WCFClient2.ServiceReference1;
using System.ServiceModel;
namespace WCFClient2
{
public partial class Form1 : Form, IService1Callback
{
publicForm1()
{
InitializeComponent();
}
public void NotifyClientMsg(stringdevStateInfo)
{
MessageBox.Show(devStateInfo,"ddd");
}
IService1m_Innerclient;
privatevoid Form1_Load(objectsender, EventArgs e)
{
InstanceContextm_CallBackContext;
m_CallBackContext = new InstanceContext(this);
DuplexChannelFactory<IService1> m_ChannelFactory;
NetTcpBindingbinding = new NetTcpBinding();
stringstrUrl = string.Format("net.tcp://{0}:{1}/WCFHostServer/Service1",
"localhost",10085);
UribaseAddress = new Uri(strUrl);
m_ChannelFactory = new DuplexChannelFactory<IService1>(m_CallBackContext, binding, new EndpointAddress(baseAddress));
m_Innerclient =m_ChannelFactory.CreateChannel();
Service1Clienthost = new ServiceReference1.Service1Client(m_CallBackContext);
host.Init();//调用GetSvrTime获取到wcfserver上的时间
}
}
}
