WCF服务端调用客户端.

简介: 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
        }
    }
}
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