Windows 服务托管 WCF 不接受 GET 请求

Question

我的 Windows 服务中有以下内容：

protected override void OnStart(string[] args)
{
    if (m_svcHost != null) 
        m_svcHost.Close();

    string strAdrHTTP = "http://localhost:9001/CalcService";
    //string strAdrTCP = "net.tcp://localhost:9002/CalcService";

    Uri[] adrbase = { new Uri(strAdrHTTP) };
    m_svcHost = new ServiceHost(typeof(WCFCalcLib.CalcService), adrbase);
    ServiceEndpoint ep = m_svcHost.AddServiceEndpoint(typeof(ICalcService), new WebHttpBinding(), strAdrHTTP);

/*
ServiceMetadataBehavior mBehave = new ServiceMetadataBehavior();
m_svcHost.Description.Behaviors.Add(mBehave);


BasicHttpBinding httpb = new BasicHttpBinding();
m_svcHost.AddServiceEndpoint(typeof(WCFCalcLib.ICalcService), httpb, strAdrHTTP);
m_svcHost.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexHttpBinding(), "mex");
*
* */
/*
WebHttpBinding webHttpBinding = new WebHttpBinding();
webHttpBinding.MaxReceivedMessageSize = 65536 * 2;
webHttpBinding.MaxBufferPoolSize = 2147483647L;
webHttpBinding.MaxBufferSize = 2147483647;
webHttpBinding.MaxReceivedMessageSize = 2147483647L;

m_svcHost.AddServiceEndpoint(typeof(WCFCalcLib.ICalcService), webHttpBinding, strAdrHTTP);
*/

    m_svcHost.Open();
}

当我尝试从浏览器或邮递员应用程序发出GET 请求时，我总是收到以下错误消息：

由于 EndpointDispatcher 的 ContractFilter 不匹配，接收方无法处理带有 Action '' 的消息。这可能是因为合约不匹配（发送方和接收方之间的操作不匹配）或发送方和接收方之间的绑定/安全不匹配。检查发送方和接收方是否具有相同的合同和相同的绑定（包括安全要求，例如消息、传输、无）。

我不确定如何让它接受GET 请求。

如果我通过 Visual Studio 启动项目，我可以发出 GET 请求就好了，问题是如果我尝试在它托管在 Windows 服务中时这样做。

没有app.config - 也许这就是问题发生的原因？

如何让托管在 Windows 服务中的 WCF 接受 GET 请求？

这是我得到的错误：

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<Fault xmlns="http://schemas.microsoft.com/ws/2005/05/envelope/none">
<Code>
<Value>Sender</Value>
<Subcode>
<Value 
xmlns:a="http://schemas.microsoft.com/ws/2005/05/addressing/none">a:ActionNotSupported</Value>
</Subcode>
</Code>
<Reason>
<Text xml:lang="en-US">
The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).
</Text>
</Reason>
</Fault>

我现在改成这样了：

    Uri httpBaseAddress = new Uri("http://localhost:9001/CalcService");
    m_svcHost = new ServiceHost(typeof(WCFCalcLib.CalcService), httpBaseAddress);
    //Add Endpoint to Host
    m_svcHost.AddServiceEndpoint(typeof(WCFCalcLib.ICalcService), new WSHttpBinding(), "");
    //Metadata Exchange
    ServiceMetadataBehavior serviceBehavior = new ServiceMetadataBehavior();
    serviceBehavior.HttpGetEnabled = true;
    m_svcHost.Description.Behaviors.Add(serviceBehavior);
    //Open
    m_svcHost.Open();

现在我可以点击它，但仍然不能通过 GET 请求。它显示 wsdl。

谢谢。

Answer 1

我按照这里的示例找到了答案，看起来我的 app.config 在其他一些东西中完全丢失了。

https://www.codeproject.com/Tips/1009004/WCF-RESTful-on-Windows-Service-Host