WCF服务端调用客户端.

wcf服务端

1，新建一个“windows窗体程序”名称为WCFServer2。

 

2，然后添加一个“WCF服务”名称为Service1。具体步骤为：解决方案试图中，选中“WCFServer2”项目，右键，在弹出菜单中选择“添加->新建项”。

3，双击主窗体，在它的Load事件中编写代码启动wcf服务：BasicHttpBinding方式启动wcf服务。此文件代码如下：

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中增加一个方法Init,同时增加ISvrToCliCallBack接口.

namespace WCFServer2
{
    // 注意:
使用“重构”菜单上的“重命名”命令，可以同时更改代码和配置文件中的接口名“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,主窗口增加按钮。

private
voidbutton1_Click(object sender,
EventArgs e)
        {
            Service1.userCallBack.NotifyClientMsg("服务端给客户端通知啦"); 

        }
7，修改app.config，WCFServer2.Service1的binding由"wsHttpBinding"改成"wsDualHttpBinding"
 
 
 

 

客服端

1，新建一个“windows窗体程序”名称为WCFClient2。

2，增加服务引用。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，主窗口启动是初始化。

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wcf服务器上的时间
 
        }
    }
}