监控给定的域名，一旦域名连续30秒(这是默认值，可以在源码中修改)无法Ping通，立刻发邮件到指定邮箱，并发短信给站长




	
原理：



　　用后台线程循环每隔5秒钟Ping结定的域名，如果连接5次Ping不通则发送邮件到给定邮箱。发短信是通过其他途径实现的，现在最常用的有两种方式：



　　一是利用QQ邮箱的手机绑定功能实现收到邮件短信提示



　　二是用www.ifttt.com提供的gmail跟sms服务实现收到邮件发短信提示



　　本工具用的是第一种。

主要程序： 

　　主要是后台线程ping域名的应用，界面上显示记录的是一个richtextbox控件，其他几个就不说了，代码如下：

　　窗体后台程序：


	复制代码 代码如下:

	

	public partial class FormMain : Form, IFormWorkThread

	{

	private delegate void ControlDelegate(string record);

	private WorkThread wtObj;

	ControlDelegate cdObj;

	public FormMain()

	{

	InitializeComponent();

	cdObj = SetRecord;

	}

	private void FormMain_Load(object sender, EventArgs e)

	{

	}

	private void btnBegin_Click(object sender, EventArgs e)

	{

	if (txtDomain.Text.Trim() == "")

	{

	MessageBox.Show("Domain(IP) can not be empty!");

	return;

	}

	if (txtEmail.Text.Trim() == "")

	{

	MessageBox.Show("Email address can not be empty!");

	return;

	}

	Regex regex = new Regex(@"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*");

	if (!regex.IsMatch(txtEmail.Text.Trim()))

	{

	MessageBox.Show("Email address error!");

	return;

	}

	wtObj = new WorkThread(this, 0, 3, txtDomain.Text.Trim(), txtEmail.Text.Trim());

	wtObj.StartShowResult();

	}

	private void SetRecord(string record)

	{

	rtxtRecord.AppendText(record);

	if (rtxtRecord.Lines.Length > 5 * 60 * 24 * 7)

	{

	rtxtRecord.Clear();

	}

	}

	public void ShowResult(string record)

	{

	if (rtxtRecord.InvokeRequired)

	{

	Invoke(cdObj, record);

	}

	else

	{

	SetRecord(record);

	}

	}

	private void btnEnd_Click(object sender, EventArgs e)

	{

	if (wtObj != null)

	{

	wtObj.EndShowResult();

	}

	}

	private void FormMain_FormClosing(object sender, FormClosingEventArgs e)

	{

	if (wtObj != null)

	{

	wtObj.EndShowResult();

	}

	}

	private void tslblName_Click(object sender, EventArgs e)

	{

	OpenMyBlog();

	}

	private void OpenMyBlog()

	{

	var Info = new System.Diagnostics.ProcessStartInfo("http://artwl.cnblogs.com");

	System.Diagnostics.Process.Start(Info);

	}

	}


IFormWorkThread接口：


	复制代码 代码如下:

	

	public interface IFormWorkThread

	{

	void ShowResult(string record);

	}


WorkThread代码：


	复制代码 代码如下:

	

	public class WorkThread

	{

	private IFormWorkThread _formWorkThread;

	private Thread thread;

	private int count = 0, maxcount = 5;

	private string domain = "";

	private string emailaddress = "";

	public WorkThread(IFormWorkThread formWorkThread,int count,int maxcount,string domain,string email)

	{

	this.count = count;

	this.maxcount = maxcount;

	this.domain = domain;

	this.emailaddress = email;

	_formWorkThread = formWorkThread;

	}

	private string Ping(string domainname)

	{

	Ping ping = new Ping();

	PingReply pr = ping.Send(domainname);

	if (pr.Status == IPStatus.Success)

	{

	count = count > 0 ? count - 1 : 0;

	}

	else

	{

	count++;

	if (count > maxcount)

	{

	EmailHelp.SendEmail(emailaddress,

	string.Format("【 {0} 】不能访问啦！",domainname),

	string.Format("【 {0} 】不能访问啦！<br/><br/>【时间】{1}<br/><br/>【Ping】当前ping的结果为：{2}", domainname,DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"), pr.Status),

	true);

	count = 0;

	}

	}

	return "【Time】:" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "\t【Domain】:" + domainname + "\t【Status】:" + pr.Status.ToString() + "\t【RoundtripTime】:" + pr.RoundtripTime.ToString() + "\n";

	}

	public void Deal()

	{

	while (true)

	{

	Thread.Sleep(5000);

	string result = Ping(domain);

	_formWorkThread.ShowResult(result);

	}

	}

	public void StartShowResult()

	{

	thread = new Thread(new ThreadStart(Deal));

	thread.Name = "TimeThread";

	thread.Start();

	}

	public void EndShowResult()

	{

	thread.Abort();

	}

	}


发邮件代码：


	复制代码 代码如下:

	

	public class EmailHelp

	{

	public static void SendEmail(string[] emailAddress, string subject, string body, bool ishtml)

	{

	MailMessage msg = new MailMessage();

	foreach (string o in emailAddress)

	{

	msg.To.Add(o);

	}

	msg.Subject = subject;//邮件标题

	msg.Body = body;//邮件内容

	msg.IsBodyHtml = ishtml;//是否是HTML邮件

	Thread sendemail = new Thread(SendReplyEmail);

	sendemail.Start(msg);

	}

	public static void SendEmail(string to, string subject, string body, bool ishtml)

	{

	SendEmail(new string[] { to }, subject, body, ishtml);

	}

	private static void SendEmail(MailMessage mailMessage)

	{

	mailMessage.From = new MailAddress("emailaddress", "网站检测邮件", System.Text.Encoding.UTF8);

	mailMessage.SubjectEncoding = System.Text.Encoding.UTF8;//邮件标题编码

	mailMessage.BodyEncoding = System.Text.Encoding.UTF8;//邮件内容编码

	mailMessage.Priority = MailPriority.Normal;//邮件优先级

	SmtpClient client = new SmtpClient();

	//注册的邮箱和密码

	client.Credentials = new System.Net.NetworkCredential("emailaddress", "password");

	client.Port = 25;

	client.Host = "smtp.qq.com";

	client.EnableSsl = false;

	try

	{

	client.Send(mailMessage);

	}

	catch (System.Net.Mail.SmtpException ex)

	{

	//log.Error(ex.Message);

	}

	}

	private static void SendReplyEmail(object model)

	{

	SendEmail((MailMessage)model);

	}

	}


注：发邮件的代码中emailaddress跟password要换成你自己的邮件地址跟密码。另外下载的exe文件为保证可用，我用的邮箱地址跟密码没有去掉，请大家也不要反编译后查看（这只是一个coding时的测试邮箱，没什么价值，赚不到钱的）。