using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.ServiceProcess;
using System.Threading;
namespace frey
{
    class Program
    {
        static void Main(string[] args)
        {
            string pageUrl = "http://localhost/";
            bool istrue = false;
            while (true)
            {
                HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(pageUrl);
                HttpWebResponse myHttpWebResponse; //=无法连接到远程服务器
                try
                {
                    myHttpWebResponse =  (HttpWebResponse)myHttpWebRequest.GetResponse();
                    /*
                     HttpStatusCode.OK              等效于 HTTP 状态 200。OK 指示请求成功，且请求的信息包含在响应中。这是最常接收的状态代码。 
                     HttpStatusCode.BadGateway      等效于 HTTP 状态 502。BadGateway 指示中间代理服务器从另一代理或原始服务器接收到错误响应。
                     HttpStatusCode.NotFound        等效于 HTTP 状态 404。NotFound 指示请求的资源不在服务器上。 
                     */
                    if (myHttpWebResponse.StatusCode == HttpStatusCode.OK)
                    {
                        istrue = true;
                    }
                    else
                    {
                        istrue = false;
                    }
                    myHttpWebResponse.Close();
                }
                catch (WebException ex)
                {
                    istrue = false;
                    Console.WriteLine(ex.Status); //ConnectFailure
                }
                //判断网站是否正常
                Console.WriteLine(istrue.ToString());
                //不正常重启APACHE服务
                if (istrue == false)
                {
                    ServiceController sc = new ServiceController();
                    sc.ServiceName = "apache2.2";
                    if (sc.CanStop)
                    {
                        if (sc.Status == ServiceControllerStatus.Running)
                        {
                            sc.Stop();
                            Console.WriteLine("停止apahe服务器");
                        }
                    }
                    Console.WriteLine(sc.Status);
                    if (sc.Status == ServiceControllerStatus.Stopped)
                    {
                        try
                        {
                            sc.Start();
                            Console.WriteLine("时间：{0}", DateTime.Now.ToString());//时间
                            Console.WriteLine("启动apahe服务器");
                        }
                        catch { }
                    }
                    sc.Close();
                }
                Thread.Sleep(6000);
                Console.WriteLine("6秒");   //每6秒检测一次，实际环境可设为60秒或更多
            }
        }
    }
}