WCF 发现根本不起作用 [英] WCF Discovery simply doesn't work

问题描述

我正在尝试将临时发现添加到简单的 WCF 服务客户端设置(目前通过控制台应用程序中的自托管实现).在 Windows 7 上使用 VS2010 进行调试，并执行我在在线教程中可以找到的任何内容，但仍然 - 发现客户端根本找不到任何东西.不用说，如果我打开一个客户端到正确的服务端点，我可以从客户端访问该服务.

I'm trying to add ad-hoc discovery to a simple WCF service-client setup (currently implemented by self hosting in a console app). Debugging using VS2010 on windows 7, and doing whatever I can find in online tutorial, but still - the discovery client simply finds nothing. Needless to say if I open a client to the correct service endpoint I can access the service from the client.

服务代码:

using (var selfHost = new ServiceHost(typeof(Renderer)))
{
    try
    {
        selfHost.Open();
        ...
        selfHost.Close();

服务 app.config:

service app.config:

<?xml version="1.0"?>
<configuration>
  <system.serviceModel>
    <services>
      <service name="TestApp.Renderer">
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:9000" />
          </baseAddresses>
        </host>
        <endpoint address="ws" binding="wsHttpBinding" contract="TestApp.IRenderer"/>
        <endpoint kind="udpDiscoveryEndpoint"/>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceDiscovery/>
          <serviceMetadata httpGetEnabled="True"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

客户端发现代码:

DiscoveryClient discoveryClient = new DiscoveryClient(new UdpDiscoveryEndpoint());
var criteria = new FindCriteria(typeof(IRenderer)) { Duration = TimeSpan.FromSeconds(5) };
var endpoints = discoveryClient.Find(criteria).Endpoints;

端点"集合总是空的.我已经尝试从调试器、命令行、管理命令行运行服务和客户端 - 一切，但无济于事(当然，所有这些都在本地机器上，不是说我需要它运行我的整个子网最终)

The 'endpoints' collection always comes out empty. I've tried running the service and client from the debugger, from a command line, from an admin command line - everything, but to no avail (all on the local machine, of course, not to mantion I'll need it running on my entire subnet eventually)

任何帮助将不胜感激:-)

Any help would be appreciated :-)

推荐答案

该死！是防火墙...出于某种原因，所有 UDP 通信都被阻止了 - 禁用防火墙解决了问题.现在我只需要弄清楚正确的防火墙配置...

Damn! it was the firewall... for some reason all UDP communication was blocked - disabling the firewall solved the problem. Now I only need to figure out the correct firewall configuration...

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