WCF 动态调用（动态创建实例接口）

 

 

wcfbindingstringurlbingnull

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

下面就看看怎样实现动态调用WCF。

首先看看动态创建服务对象的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.ServiceModel;
using System.ServiceModel.Channels;


/// <summary>
/// 动态调用WCF的工具类库
/// </summary>
public class InvokeContext
{

    #region Wcf服务工厂
    public static T CreateWCFServiceByURL<T>(string url)
    {
        return CreateWCFServiceByURL<T>(url, "wsHttpBinding");
    }


    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);  //终结点地址
        Binding binding = CreateBinding(bing);  返回一个包含在当前绑定中的已排序的绑定元素集合
        ChannelFactory<T> factory = new ChannelFactory<T>(binding, address);  //由通道工厂生成的通道类型。此类型必须
//为 IOutputChannel 或 IRequestChannel。
        return factory.CreateChannel();  //创建 TChannel 类型（类的泛型参数）的通道。
    }
    #endregion

    #region 创建传输协议
    /// <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.MaxBufferSize = 2147483647;
            ws.MaxBufferPoolSize = 2147483647;
            ws.MaxReceivedMessageSize = 2147483647;
            ws.ReaderQuotas.MaxStringContentLength = 2147483647;
            ws.CloseTimeout = new TimeSpan(0, 10, 0);
            ws.OpenTimeout = new TimeSpan(0, 10, 0);
            ws.ReceiveTimeout = new TimeSpan(0, 10, 0);
            ws.SendTimeout = new TimeSpan(0, 10, 0);

            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() == "webhttpbinding")
        {
            //WebHttpBinding ws = new WebHttpBinding();
            //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 = 65535000;
            ws.Security.Message.ClientCredentialType = System.ServiceModel.MessageCredentialType.Windows;
            ws.Security.Transport.ClientCredentialType = System.ServiceModel.HttpClientCredentialType.Windows;
            bindinginstance = ws;
        }
        return bindinginstance;

    }
    #endregion

}

IWCFserver 是通过 

svcutil.exe http://localhost:8034/WCFserver.svc?wsdl

 自动生成的。

IWCFserver dpser = InvokeContext.CreateWCFServiceByURL<IWCFserver>(Public.getXmlElementValue("LocalDpPathologySliceServ"), "basicHttpBinding");