c# - Windows 服务中托管的 WCF 数据服务中的 HttpContext.Current 为空

Question

我在 Windows 服务中创建了一个 WCF 数据服务并尝试访问 HttpContext。

我将其添加到我的配置文件中:

 <system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />   
 </system.serviceModel>

但是，当我尝试访问它时，它是空的。

protected override void OnStartProcessingRequest(ProcessRequestArgs args)
    {
      base.OnStartProcessingRequest(args);   
      HttpContext httpContext = HttpContext.Current;
      File.AppendAllText(@"c:\Temp\ERROR.log",
      httpContext != null
       ?"HTTPCONTEXT IS NOT NULL"
       :"HTTPCONTEXT IS NULL");
    }

我还应该设置什么？

Answer 1

我找到了答案，恐怕是这样:

The disabled ASP.NET HTTP features are:

HttpContext.Current: This is always null in this mode. For ASMX services, this is a ThreadStatic property that is stored in the Thread Local Store (TLS). WCF provides a counterpart to this feature: OperationContext.Current.

来源:http://blogs.msdn.com/b/wenlong/archive/2006/01/23/516041.aspx