连接尝试失败，因为连接方未正确响应 [英] A connection attempt failed because the connected party did not properly respond

问题描述

我在1and1上有一个共享服务器.在我的MVC站点中，当我尝试连接到外部的其他服务器时，出现此错误:

I have a shared server on 1and1. In my MVC site, when I try to connect to another server outside I get this error:

发送请求时发生错误.无法连接到 远程服务器连接尝试失败，因为连接方 一段时间后未正确响应，或已建立 连接失败，因为连接的主机无法响应 23.xxx.xxx.xxx:80

An error occurred while sending the request. Unable to connect to the remote server A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 23.xxx.xxx.xxx:80

当我在本地开发计算机上运行它时，它可以正常工作，但是当我通过FTP将其上传到服务器时，它会显示该错误.

When I run it on my development machine locally it works fine, but when I upload it to server by FTP, it shows that error.

这是我的代码:

HttpClient client = new HttpClient();
client.BaseAddress = new Uri("http://OutsideServer.com", UriKind.Absolute);

var url = "GetData";
var stringContent = string.Format("\"id\":12");
StringContent content = new StringContent(stringContent);

var result = await client.PostAsync(url, content);

var jsondata = await result.Content.ReadAsStringAsync();

在

in another question I found this answer:

<configuration>
   <system.net>
      <defaultProxy>
         <proxy
            usesystemdefault = "false"
            proxyaddress="http://proxyserver"
            bypassonlocal="true"
         />
      </defaultProxy>
   </system.net>
</configuration>

但是我不知道应该使用什么代理地址.

But I don't know what proxy address should be.

推荐答案

5年后，我试图将它与asp.net core 3.1 mvc应用程序一起使用时遇到了相同的问题.我在他们的网站

I ran into the same issue after 5 years when trying to use it with asp.net core 3.1 mvc app. I used the following proxy setting as mentioned in their site https://www.ionos.co.uk/help/hosting/net/script-examples-for-establishing-external-http-connections-windows/

<proxy  proxyaddress="http://winproxy.server.lan:3128"
                bypassonlocal="true"
        />

httpclient现在看起来像这样，并且可以正常工作.希望它能对某人有所帮助.

The httpclient now looks like this and it works. Hope it might help someone.

services.AddHttpClient<MyNamedClient>()
                    .ConfigureHttpClient((provider, httpClient) =>
                    {

                    })
                    .ConfigurePrimaryHttpMessageHandler((handler) => new HttpClientHandler { 
                        UseDefaultCredentials=true,
                        Proxy = new WebProxy("http://winproxy.server.lan:3128",true)
                    });

这篇关于连接尝试失败，因为连接方未正确响应的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！