.net如何实现ping
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代码如下:
class ServicePinger
{
private static readonly ILog log = LogManager.GetLogger(typeof(ServicePinger));
public ServicePinger(string siteName, string siteUrl, string serviceUrl)
{
if (siteName == null)
throw new ArgumentException("siteName can't be null");
if (siteUrl == null)
throw new ArgumentException("siteUrl can't be null");
if (serviceUrl == null)
throw new ArgumentException("serviceUrl can't be null");
if (siteName.Length == 0)
throw new ArgumentException("siteName can't be empty");
if (siteUrl.Length == 0)
throw new ArgumentException("siteUrl can't be empty");
if (serviceUrl.Length == 0)
throw new ArgumentException("serviceUrl can't be empty");
pingingSiteName = siteName;
pingingSiteUrl = siteUrl;
serviceUrlToPing = serviceUrl;
}
private string pingingSiteName = string.Empty;
private string pingingSiteUrl = string.Empty;
private string serviceUrlToPing = string.Empty;
private int timeoutInMilliseconds = 3000;
///
/// Does the actual pinging of the service
///
public void Ping()
{
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serviceUrlToPing);
request.Method = "POST";
request.ContentType = "text/xml";
request.Timeout = timeoutInMilliseconds;
request.Credentials = CredentialCache.DefaultNetworkCredentials;
Stream stream = (Stream)request.GetRequestStream();
using (XmlTextWriter writer = new XmlTextWriter(stream, Encoding.ASCII))
{
writer.WriteStartDocument();
writer.WriteStartElement("methodCall");
writer.WriteElementString("methodName", "weblogUpdates.ping");
writer.WriteStartElement("params");
writer.WriteStartElement("param");
writer.WriteElementString("value", pingingSiteName);
writer.WriteEndElement();
writer.WriteStartElement("param");
writer.WriteElementString("value", pingingSiteUrl);
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndElement();
}
request.GetResponse();
}
catch (InvalidOperationException ex)
{
log.Error(ex);
}
catch (NotSupportedException ex)
{
log.Error(ex);
}
}
}
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