Question

所以我对C＃真的很生气。我正在尝试执行GET http请求，但我的响应总是空白/ null。这是我的代码

    class ServerUtil
{
    String status = "";
    public String serverMessage(String query)
    {
        serverMessageHelper(query);
        return status;
    }

    private async void serverMessageHelper(String query)
    {
        UriBuilder baseUri = new UriBuilder("http://darksync-anarchysystems.rhcloud.com/ServletExample/ServletExample?");
        baseUri.Query = baseUri.Query.Substring(1) + query;
        string url = baseUri.Uri.ToString();
        var httpClient = new HttpClient(new HttpClientHandler());
        HttpResponseMessage response = await httpClient.GetAsync(url);

        try
        {
            response.EnsureSuccessStatusCode();
            status = await response.Content.ReadAsStringAsync();
        }
        catch
        {
            status = "505";
        }
    }


}

我创建一个ServerUtil对象，并在代码

中进行服务器调用

ServerUtil s = new ServerUtil();
string resp = s.serverMessage("action=login&user=" + username + "&password=" + password);

奇怪的是它在我的服务器上进行了更改，但没有响应..

Answer 1

我测试了以下内容并正确获得状态响应。

import time
import os

# turn off the default trigger of the green LED
os.system("sudo bash -c \"echo none > /sys/class/leds/led0/trigger\"")

# turn on the green LED
os.system("sudo bash -c \"echo 1 > /sys/class/leds/led0/brightness\"")

# keep it on 5 seconds
time.sleep(5)

# turn off the green LED on PI
os.system("sudo bash -c \"echo 0 > /sys/class/leds/led0/brightness\"")

未能获得请求的响应

1 个答案: