C# 使用简单TCP时,如何启用WCF压缩?
我正在使用WCF在不同计算机上的程序的两个相同副本之间传输信息,下面的代码在一台计算机上演示了这种方法。我知道.NET4.5,我在中看到了XML实现,但我不知道在这种情况下如何启用它。我如何修改下面的程序以使用压缩,并进行最少/最简单的更改C# 使用简单TCP时,如何启用WCF压缩?,c#,.net,wcf,C#,.net,Wcf,我正在使用WCF在不同计算机上的程序的两个相同副本之间传输信息,下面的代码在一台计算机上演示了这种方法。我知道.NET4.5,我在中看到了XML实现,但我不知道在这种情况下如何启用它。我如何修改下面的程序以使用压缩,并进行最少/最简单的更改 // Reference to System.ServiceModel class Program { static void Main(string[] args) { var server = new DemoWcfSer
// Reference to System.ServiceModel
class Program
{
static void Main(string[] args)
{
var server = new DemoWcfServer();
var handler = new DemoWcfHandler();
Uri serviceUri = new Uri("net.tcp://localhost/SimpleWcfDemo");
var binding = new NetTcpBinding();
binding.MaxBufferSize = 100000000;
binding.MaxReceivedMessageSize = 100000000;
var host = new ServiceHost(server, serviceUri);
host.AddServiceEndpoint(typeof(IDemoWcfServer), binding, "");
host.Open();
var cf = new DuplexChannelFactory<IDemoWcfServer>(handler, binding, new EndpointAddress(serviceUri));
IDemoWcfServer serviceProxy = cf.CreateChannel();
serviceProxy.DoStuff(BigString('T', 1000000));
Console.ReadKey();
}
static string BigString(char c, int n)
{
var sb = new StringBuilder();
for (int i = 0; i < n; i++)
sb.Append(c);
return sb.ToString();
}
[ServiceContract(CallbackContract = typeof(IDemoWcfCallback))]
public interface IDemoWcfServer
{
[OperationContract]
void DoStuff(string content);
}
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class DemoWcfServer : IDemoWcfServer
{
public void DoStuff(string content)
{
Console.WriteLine("Content of " + content.Length + " length received remotely; processing...");
IDemoWcfCallback callback = OperationContext.Current.GetCallbackChannel<IDemoWcfCallback>();
Task.Run(async () =>
{
await Task.Delay(TimeSpan.FromSeconds(3));
callback.NotifyStuffComplete(BigString('R', 1000000));
});
}
}
public interface IDemoWcfCallback
{
[OperationContract]
void NotifyStuffComplete(string content);
}
public class DemoWcfHandler : IDemoWcfCallback
{
public void NotifyStuffComplete(string content)
{
Console.WriteLine("Response of " + content.Length + " length received");
}
}
}
//对System.ServiceModel的引用
班级计划
{
静态void Main(字符串[]参数)
{
var server=new DemoWcfServer();
var handler=new DemoWcfHandler();
Uri serviceUri=新的Uri(“网络。tcp://localhost/SimpleWcfDemo");
var binding=新的NetTcpBinding();
binding.MaxBufferSize=100000000;
binding.MaxReceivedMessageSize=100000000;
var host=新的ServiceHost(服务器,serviceUri);
AddServiceEndpoint(typeof(IDemoWcfServer),绑定“”;
host.Open();
var cf=新的DuplexChannelFactory(处理程序、绑定、新端点地址(serviceUri));
IDemoWcfServer serviceProxy=cf.CreateChannel();
DoStuff(BigString('T',1000000));
Console.ReadKey();
}
静态字符串BigString(字符c,整数n)
{
var sb=新的StringBuilder();
对于(int i=0;i
{
等待任务延迟(时间跨度从秒(3));
NotifyStuffComplete(BigString('R',1000000));
});
}
}
公共接口回拨
{
[经营合同]
作废完成(字符串内容);
}
公共类DemowFHandler:IDemoWcfCallback
{
public void NotifyStuffComplete(字符串内容)
{
Console.WriteLine(“响应“+内容.长度+”接收长度”);
}
}
}
中的答案通过使用自定义绑定来解决它。您可以按照中的说明自己执行此操作。要创建包含压缩(.NET 4.5+)的自定义绑定,请替换此选项:
var binding = new NetTcpBinding();
binding.MaxBufferSize = 100000000;
binding.MaxReceivedMessageSize = 100000000;
为此:
var binding = new CustomBinding();
var be1 = new BinaryMessageEncodingBindingElement();
be1.CompressionFormat = CompressionFormat.GZip;
binding.Elements.Add(be1);
var be2 = new TcpTransportBindingElement();
be2.MaxBufferSize = 100000000;
be2.MaxReceivedMessageSize = 100000000;
binding.Elements.Add(be2);
binding = new CustomBinding(binding);
通过监听端口808的本地环回,可以使用(或Wireshark)验证所需的行为。通过压缩,只有14个数据包交换,没有一个数据包的有效负载大于1200字节。如果不进行压缩,则有238个数据包,其中许多数据包大于64k