c#如何检查局域网内服务器是否连通

netboygg 2006-01-19 09:04:17

可用ping方法吧?
但是主机设置防ping之后该怎么测试连通?

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superfishmanweb 2006-01-23

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用 udp 做广播, try 出错的话就是没有连通

netboygg 2006-01-21

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2种都可行哈不过还是第一种简便些

singlepine 2006-01-21

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http://community.csdn.net/Expert/topic/4528/4528575.xml?temp=.1684992

showmetoyou 2006-01-20

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学习！

Snowdust 2006-01-19

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using System.Diagnostics;
public static string CmdPing(string _strHost)
{
string m_strHost = _strHost;

Process process = new Process();
process.StartInfo.FileName = "cmd.exe";
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.RedirectStandardOutput = true;
process.StartInfo.RedirectStandardError = true;
process.StartInfo.CreateNoWindow = true;
string pingrst = string.Empty;
process.StartInfo.Arguments = "ping " + m_strHost + " -n 1";
process.Start();
process.StandardInput.AutoFlush = true;
string temp = "ping " + m_strHost + " -n 1" ;
process.StandardInput.WriteLine(temp);
process.StandardInput.WriteLine("exit");
string strRst = process.StandardOutput.ReadToEnd();
if(strRst.IndexOf("(0% loss)")!=-1)
pingrst = "连接";
else if( strRst.IndexOf("Destination host unreachable.")!=-1)
pingrst = "无法到达目的主机";
else if(strRst.IndexOf("Request timed out.")!=-1)
pingrst = "超时";
else if(strRst.IndexOf("Unknown host")!=-1)
pingrst = "无法解析主机";
else
pingrst = strRst;
process.Close();
return pingrst ;
}

private void button1_Click(object sender, System.EventArgs e)
{
string str = CmdPing("192.168.1.100");
MessageBox.Show(str);
}