C# 非静态字段、方法或属性“HttpContext.Request"需要对象引用 [英] C# An object reference is required for the non-static field, method, or property 'HttpContext.Request'

问题描述

我正在尝试创建一个通用工厂类来调用 WCF 并注入一些标头.在这个类中，我试图读取 HTTP 标头属性.

I am trying create a common factory class to call WCF and to inject some headers. In this class I am trying to read the HTTP Header properties.

    using System.ServiceModel;
    using System.ServiceModel.Channels;
    using ServiceReference;
    using Microsoft.AspNetCore.Http;
namespace Service
{
     public class ServiceFactory
        {

            public static ServiceClient Create()
            {
                ServiceProxy service = new ServiceProxy();
                string userName = HttpContext.Request.Headers["AUTH_USERNAME"];
                string authenricationType = HttpContext.Request.Headers["AUTH_TYPE"];

                using (new System.ServiceModel.OperationContextScope((System.ServiceModel.IClientChannel)service.InnerChannel))
                {          
                    HttpRequestMessageProperty requestMessage = new HttpRequestMessageProperty();
                    requestMessage.Headers["AUTH_USERNAME"] = userName;
                    OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = requestMessage;

                    requestMessage.Headers["AUTH_TYPE"] = authenricationType;
                    OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = requestMessage;
                }
                return service;
            }       
        }
}

但是我收到一个编译错误 非静态字段、方法或属性 'HttpContext.Request' 需要一个对象引用.因为我不是从静态方法或一堂课这是怎么发生的.任何帮助将不胜感激.

But I get a compile error as "An object reference is required for the non-static field, method, or property 'HttpContext.Request'. Since I am not calling from a Static method or a class how this could happen. Any help would be highly appreciated.

谢谢.

推荐答案

HttpContext.Request 不起作用，因为它试图访问实例属性，就像它是静态属性一样.HttpContext.Current.Request 应该可以工作，假设到那时上下文已经与线程相关联

HttpContext.Request won't work, because that's trying to access an instance property as if it were a static property. HttpContext.Current.Request should work, assuming the context has been associated with the thread by that point

HttpContext.Request 和 Request 的区别

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