Google的ProtoBuf序列化器性能的牛逼已經有目共睹了，可以把它應用到Socket通訊，隊列，Wcf中，身為dotnet程式員一邊期待著不久後Grpc對dotnet core的支持更期待著Wcf有一天能在Linux平臺上閃瞎所有人。現在簡單表述下Wcf中應用ProtoBuf替代預設的序列化器 ...
Google的ProtoBuf序列化器性能的牛逼已經有目共睹了，可以把它應用到Socket通訊，隊列，Wcf中，身為dotnet程式員一邊期待著不久後Grpc對dotnet core的支持更期待著Wcf有一天能在Linux平臺上閃瞎所有人。現在簡單表述下Wcf中應用ProtoBuf替代預設的序列化器。
準備：
首先，新建一套Wcf的解決方案，包含服務，宿主外加兩個客戶端用來測試調用：
Wcf_ProtoBufSample.ClientViaMetaData會通過添加服務引用的方式調用服務，Wcf_ProtoBufSample.ClientViaReference則直接通過對Wcf_ProtoBufSample.Service添加引用來調動服務。
分別為每個項目對protobuf-net添加引用： install-package protobuf-net -Version 2.0.0.668（此處現在比較糾結，protobuf-net的最新版本是2.1.0.0，但現在移除了ProtoBuf.ServiceModel，目測是為了相容dotnet core，估計以後還會再回來的。）
接下來在Wcf_ProtoBufSample.Service中簡單定義個服務：
[ServiceContract, ProtoContract] public interface IGreeterService { [OperationContract] Reply Get(Request request); } public class GreeterService : IGreeterService { public Reply Get(Request request) { Reply reply = new Reply() { GreetInfo = "你好！" + request.Name + ",恭喜你" + request.Age + "歲了！" }; return reply; } } [DataContract] [ProtoContract] public class Request { [DataMember(Order = 0)] [ProtoMember(1)] public string Name { set; get; } [DataMember(Order = 1)] [ProtoMember(2)] public int Age { set; get; } } [DataContract] [ProtoContract] public class Reply { [DataMember(Order = 0)] [ProtoMember(1)] public string GreetInfo { set; get; } }View Code
代碼中對DataMember添加了Order的特性，方便過會用。
配置宿主
在宿主中進行配置：
<system.serviceModel>
<services>
<service behaviorConfiguration="GreeterServiceBehavior" name="Wcf_ProtoBufSample.Service.GreeterService">
<endpoint
address="net.tcp://127.0.0.1:6978/GreeterService"
binding="netTcpBinding"
behaviorConfiguration="protoEndpointBehavior"
bindingConfiguration="DefaultTcpBinding"
contract="Wcf_ProtoBufSample.Service.IGreeterService">
</endpoint>
<endpoint
address="net.tcp://127.0.0.1:6976/mex"
binding="mexTcpBinding"
contract="IMetadataExchange">
</endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="GreeterServiceBehavior">
<serviceMetadata/>
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="protoEndpointBehavior">
<protobuf/>
</behavior>
</endpointBehaviors>
</behaviors>
<extensions>
<behaviorExtensions>
<add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net, Version=2.0.0.668, Culture=neutral, PublicKeyToken=257b51d87d2e4d67"/>
</behaviorExtensions>
</extensions>
<bindings>
<netTcpBinding>
<binding name="DefaultTcpBinding"
closeTimeout="00:00:30"
openTimeout="00:00:30"
receiveTimeout="00:05:00"
sendTimeout="00:50:00"
transactionFlow="true"
transferMode="Buffered"
listenBacklog="100"
maxBufferPoolSize="524288"
maxBufferSize="6553600"
maxConnections="100"
maxReceivedMessageSize="6553600" >
</binding>
</netTcpBinding>
</bindings>
</system.serviceModel>
View Code
共用元數據的方式調用
然後在Wcf_ProtoBufSample.ClientViaReference項目中添加對Wcf_ProtoBufSample.Service的引用並配置客戶端的調用信息：
<system.serviceModel>
<bindings>
<netTcpBinding>
<binding name="DefaultTcpBinding"
closeTimeout="00:00:30"
openTimeout="00:00:30"
receiveTimeout="00:05:00"
sendTimeout="00:50:00"
transactionFlow="true"
transferMode="Buffered"
listenBacklog="100"
maxBufferPoolSize="524288"
maxBufferSize="6553600"
maxConnections="100"
maxReceivedMessageSize="6553600" >
</binding>
</netTcpBinding>
</bindings>
<behaviors>
<endpointBehaviors>
<behavior name="protoEndpointBehavior">
<protobuf/>
</behavior>
</endpointBehaviors>
</behaviors>
<extensions>
<behaviorExtensions>
<add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net, Version=2.0.0.668, Culture=neutral, PublicKeyToken=257b51d87d2e4d67"/>
</behaviorExtensions>
</extensions>
<client>
<endpoint address="net.tcp://127.0.0.1:6978/GreeterService"
binding="netTcpBinding"
bindingConfiguration="DefaultTcpBinding"
contract="Wcf_ProtoBufSample.Service.IGreeterService"
behaviorConfiguration="protoEndpointBehavior"
name="GreeterService">
</endpoint>
</client>
</system.serviceModel>
View Code
簡單測試一下:
ChannelFactory<IGreeterService> factory = new ChannelFactory<IGreeterService>("GreeterService"); IGreeterService client = factory.CreateChannel(); var res = client.Get(new Request() {Name = "liam",Age = 18}); Console.WriteLine(res.GreetInfo); Console.ReadKey();View Code
通過添加服務引用或者WcfUtil
添加服務引用才是我們的最愛，簡單快捷，易於維護：
在Wcf_ProtoBufSample.ClientViaMetaData中右鍵添加服務引用，這裡我公開的地址是：net.tcp://127.0.0.1:6976/mex，
拿過來直接用肯定是不行的，畢竟我們已經修改了預設的序列化器，所以在配置中添加對ProtoBuf的配置信息，所以還是需要在配置中引用ProtoBuf的配置的：
<system.serviceModel>
<bindings>
<netTcpBinding>
<binding name="NetTcpBinding_IGreeterService" />
</netTcpBinding>
</bindings>
<client>
<endpoint address="net.tcp://127.0.0.1:6978/GreeterService"
behaviorConfiguration="protoEndpointBehavior"
binding="netTcpBinding"
bindingConfiguration="NetTcpBinding_IGreeterService"
contract="ServiceReference.IGreeterService"
name="NetTcpBinding_IGreeterService">
<identity>
<userPrincipalName value="DESKTOP-078UA43\admin" />
</identity>
</endpoint>
</client>
<behaviors>
<serviceBehaviors>
<behavior name="GreeterServiceBehavior">
<serviceMetadata/>
<serviceDebug includeExceptionDetailInFaults="true"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="protoEndpointBehavior">
<protobuf/>
</behavior>
</endpointBehaviors>
</behaviors>
<extensions>
<behaviorExtensions>
<add name="protobuf" type="ProtoBuf.ServiceModel.ProtoBehaviorExtension, protobuf-net, Version=2.0.0.668, Culture=neutral, PublicKeyToken=257b51d87d2e4d67"/>
</behaviorExtensions>
</extensions>
</system.serviceModel>
View Code
簡單調用一下進行測試：
GreeterServiceClient client=new GreeterServiceClient("NetTcpBinding_IGreeterService"); var res = client.Get(new Request() { Name = "liam", Age = 18 }); Console.WriteLine(res.GreetInfo);View Code
運行後發現報錯了！
細緻一些就不難發現，儘管我們的代理類生成的很簡單快捷，但公開元數據的描述不會包含ProtoBuf特性的描述，所以此時我們定義的 [DataMember(Order = 0)]的Order屬性此時就要發光發熱了！接下來要修改的就是生成的代理類，添加ProtoBuf的序列號特性，在類上標註ProtoContract特性在屬性上標註ProtoMember的特性，而且可以看著Order的順序就行標註：
ProtoBuf的序列化是有順序的，所以為了保證與服務端一致，此處需要謹慎（此處需要註意，更新服務引用小心自己定義的屬性被覆蓋）
簡單測試：
Over!
（備註：貌似這麼做比較複雜，畢竟開源的項目還是挺多的：https://github.com/maingi4/ProtoBuf.Services）
