.net wcf 并发

￡神魔★判官ぃ 2022-06-13 05:29 38阅读 0赞

骤:  
1.把同样的WCF服务，在多个端口上"启动"(即同时运行多个wcf的实例，但每个实例都监听不同的端口)

2.用svcutil.exe生成的代理类，里面有N多构造函数的重载版本，观察一下类似下面的这个版本  
public AstroServiceClient(string endpointConfigurationName) :  
            base(endpointConfigurationName)  
    \{  
    \}

即传入配置名生与代码类的实例,我们在web.config中的wcf配置节，做如下处理:  
<client>  
            <endpoint address="http://localhost:8001/Astro/" binding="wsHttpBinding"  
                bindingConfiguration="WSHttpBinding\_IAstroService" contract="IAstroService"  
                name="1">  
                <identity>  
                    <dns value="localhost" />  
                </identity>  
            </endpoint>  
          <endpoint address="http://localhost:8002/Astro/" binding="wsHttpBinding"  
                bindingConfiguration="WSHttpBinding\_IAstroService" contract="IAstroService"  
                name="2">  
            <identity>  
              <dns value="localhost" />  
            </identity>  
          </endpoint>  
          <endpoint address="http://localhost:8003/Astro/" binding="wsHttpBinding"  
                bindingConfiguration="WSHttpBinding\_IAstroService" contract="IAstroService"  
                name="3">  
            <identity>  
              <dns value="localhost" />  
            </identity>  
          </endpoint>  
        </client>

即对应多个wcf服务端的实例，配置多个name的endpoint节点

3.修改客户端的调用代码

把原来类似这样的代码:  
using (AstroServiceClient \_client = new AstroServiceClient())

改成

using (AstroServiceClient \_client = new AstroServiceClient(new Random().Next(1, 4).ToString()))

即客户端随机从多个wcf服务端的host中挑一个，生成代码类实例

大功告成，说白了就是把一个wcf的host分身成了3个，并且客户端随机调用3者之一