C# 如何检查网站是否在线

如何使用C#检查网站是否在线

csharp
using System;
using System.Net;
class Program
{
    static void Main()
    {
        string url = "https://www.example.com";
        bool isOnline = CheckWebsite(url);
        
        if (isOnline)
        {
            Console.WriteLine("网站 {0} 在线", url);
        }
        else
        {
            Console.WriteLine("网站 {0} 不在线", url);
        }
    }
    static bool CheckWebsite(string url)
    {
        try
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Timeout = 5000; // 设置超时时间，单位为毫秒
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                return response.StatusCode == HttpStatusCode.OK;
            }
        }
        catch (WebException)
        {
            return false;
        }
    }
}