C# HttpWebRequest抛出System.Net.WebException节=ResponseStatusLine

我编写了一个简单的httpserver，我计划与HttpRequest/Response进行交互。服务器得到请求，解析也很好，但当我写回请求时，会出现异常

System.Net.WebException: Der Server hat eine Protokollverletzung ausgeführt. Section=ResponseStatusLine
   bei System.Net.HttpWebRequest.GetResponse()

我的服务器代码写回

TcpClient client = ...;
_stream = _client.GetStream();


// make sure "\r\n" is used as line ending, because it may be different on different OS
_output = new StreamWriter(_stream, Encoding.UTF8) { NewLine = "\r\n" };

length = 0;
code = 200;
message = "OK";
_output.WriteLine("HTTP/1.1 " + code + " " + message);
_output.WriteLine("Server: My Server");
_output.WriteLine("ContentLength: " + length);
_output.WriteLine("Connection: " + (_keepAlive ? "Keep-Alive" : "Close"));
_output.WriteLine();
_output.Flush();

客户端代码

var request = (HttpWebRequest)WebRequest.Create("http://127.0.0.1:8080/foo");
request.KeepAlive = false;
request.ServicePoint.Expect100Continue = false;

using (var res = request.GetResponse())   // throws here
{
}

using (var client = new TcpClient())
{
    client.Connect(new IPEndPoint(IPAddress.Loopback, 8080));
    using (var stream = client.GetStream())
    {
        var writer = new StreamWriter(stream);
        writer.WriteLine("GET /foo HTTP/1.1");
        writer.WriteLine("HOST:127.0.0.1");
        writer.WriteLine("Connection:Close");
        writer.WriteLine();
        writer.Flush();

        var response = new StreamReader(stream).ReadToEnd();
        foreach (var c in response)
        {
            if (char.IsControl(c))
                Console.Write("'{0}'" , (int)c);
            else
                Console.Write(c);
        }
    }
}

有什么想法吗

更新：正如Jon提到的，第一个bug被删除了，但仍然不起作用

备用客户端代码

var request = (HttpWebRequest)WebRequest.Create("http://127.0.0.1:8080/foo");
request.KeepAlive = false;
request.ServicePoint.Expect100Continue = false;

using (var res = request.GetResponse())   // throws here
{
}

using (var client = new TcpClient())
{
    client.Connect(new IPEndPoint(IPAddress.Loopback, 8080));
    using (var stream = client.GetStream())
    {
        var writer = new StreamWriter(stream);
        writer.WriteLine("GET /foo HTTP/1.1");
        writer.WriteLine("HOST:127.0.0.1");
        writer.WriteLine("Connection:Close");
        writer.WriteLine();
        writer.Flush();

        var response = new StreamReader(stream).ReadToEnd();
        foreach (var c in response)
        {
            if (char.IsControl(c))
                Console.Write("'{0}'" , (int)c);
            else
                Console.Write(c);
        }
    }
}

返回

HTTP/1.1 200 OK'13''10'Server: My custom Server'13''10'ContentLength: 0'13''10'Connection: Close'13''10''13''10'

---

首先，这很可疑：

_output = new StreamWriter(_stream, Encoding.UTF8) { NewLine = "\n\r" };

---

我想你的意思是

\r\n

而不是

\n\r

你说得对，我没听清楚。但它仍然给了我机会exception@Firo：您能为服务器和客户端提供一个简短但完整的程序吗？出于兴趣，您是否有任何理由不使用

HttpListener

？1）我计划在托管linux上运行它，担心HttpListener没有得到很好的支持，或者需要一些额外的安全功能。2） 如何创建自己的http服务器的基本示例看起来非常简单（2页代码），并且具有

ProcessGETRequest（…）

具有可用属性，而不是HttpListenerRequest具有大量仅适用于某些特殊情况的属性。它与httplistener一起工作返回

HTTP/1.1 200 OK'13''10'内容长度：0'13''10'服务器：Microsoft HTTPAPI/1.0'13''10'日期：周二，2012年1月24日12:22:04 GMT'13''10'连接：关闭'13''10''13''10'

仍然不确定为什么我自己的服务器导致httprequest中的协议错误