WCF在REST状态下，传递和获取Header

WCF REST Pass and Get Header Field.cs

// 传递Header
using (WebChannelFactory<IService> wcf = new WebChannelFactory<IService>(new Uri("http://localhost:"+port+"/Web")))
{
    IService channel = wcf.CreateChannel();
    
    // 首先创建OperationContextScope
    // ** 注意OperationContextScope只能使用在单个调用内，不能跨调用包裹 ** 
    using ( OperationContextScope scope = new OperationContextScope((IContextChannel)channel))
    {
        // 传递Header
        WebOperationContext.Current.OutgoingRequest.Headers.Add("X-MyHeaderName", "1234");

        // ... 调用
    }
}

// 使用Header
public class Service : IService
{
    public string EchoWithPost(string s)
    {
        string token = WebOperationContext.Current.IncomingRequest.Headers["X-MyHeaderName"];
        return token + " ** You said " + s;
    }
}

// 列出所有Header Field

using System.ServiceModel.Web;

protected override IEnumerable<KeyValuePair<string, SampleItem>> OnGetItems() {
    WebHeaderCollection headers = WebOperationContext.Current.IncomingRequest.Headers;
    foreach (string key in headers.Keys) {
        logger.Debug("header " + key + "=" + headers[key]);
    }
}