WCF 接口动态调用（动态创建实例接口）

很多时候，服务地址都不止一个的，这个时候就要动态去配置地址。配置Web.config，很麻烦！！！

在这里我们就先来给大家介绍一种比较简单的应用技巧，WCF动态创建代码的相关实现方法。

一、服务端创建WCF：

public interface ISysInfoService    {                [OperationContract]        string GetMemoryInfo();        [OperationContract]        string GetDriveSize();        [OperationContract]        string GetAdapters();    }

二、客户端创建WCF工厂

1、引入命名空间

using System.ServiceModel.Channels;using System.ServiceModel;

2、创建WCF工厂类

public static T CreateWCFServiceByURL<T>(string url, string bing)        {            if (string.IsNullOrEmpty(url)) throw new NotSupportedException("this url isn`t Null or Empty!");            EndpointAddress address = new EndpointAddress(url);            Binding binding = CreateBinding(bing);            ChannelFactory<T> factory = new ChannelFactory<T>(binding, address);            return factory.CreateChannel();        }        /// <summary>        /// 创建传输协议        /// </summary>        /// <param name="binding">传输协议名称</param>        /// <returns></returns>        private static Binding CreateBinding(string binding)        {            Binding bindinginstance = null;            if (binding.ToLower() == "basichttpbinding")            {                BasicHttpBinding ws = new BasicHttpBinding();                ws.MaxReceivedMessageSize = 65535000;                bindinginstance = ws;            }            else if (binding.ToLower() == "netnamedpipebinding")            {                NetNamedPipeBinding ws = new NetNamedPipeBinding();                ws.MaxReceivedMessageSize = 65535000;                bindinginstance = ws;            }            else if (binding.ToLower() == "netpeertcpbinding")            {                NetPeerTcpBinding ws = new NetPeerTcpBinding();                ws.MaxReceivedMessageSize = 65535000;                bindinginstance = ws;            }            else if (binding.ToLower() == "nettcpbinding")            {                NetTcpBinding ws = new NetTcpBinding();                ws.MaxReceivedMessageSize = 65535000;                ws.Security.Mode = SecurityMode.None;                bindinginstance = ws;            }            else if (binding.ToLower() == "wsdualhttpbinding")            {                WSDualHttpBinding ws = new WSDualHttpBinding();                ws.MaxReceivedMessageSize = 65535000;                bindinginstance = ws;            }            else if (binding.ToLower() == "wsfederationhttpbinding")            {                WSFederationHttpBinding ws = new WSFederationHttpBinding();                ws.MaxReceivedMessageSize = 65535000;                bindinginstance = ws;            }            else if (binding.ToLower() == "wshttpbinding")            {                WSHttpBinding ws = new WSHttpBinding(SecurityMode.None);                ws.MaxReceivedMessageSize = 2147483647;                ws.Security.Message.ClientCredentialType = System.ServiceModel.MessageCredentialType.Windows;                ws.Security.Transport.ClientCredentialType = System.ServiceModel.HttpClientCredentialType.Windows;                bindinginstance = ws;            }            return bindinginstance;        }

三、调用好实例

sAddress = "http://localhost:8731/Monitor/SysInfoService/";

ISysInfoService obj = InvokeContext.CreateWCFServiceByURL<ISysInfoService>(sAddress);

通过变量sAddress 我们就可以调用多台服务器部署的wcf接口地址了，而不需要给每台服务器配置一个实例。