獲取遠程PC的日期時間？

Question

是否有任何類可以在.net中獲取遠程PC的日期時間？爲了做到這一點，我可以使用計算機名稱或時區。對於每種情況，是否有不同的方式來獲取當前的日期時間？我使用Visual Studio 2005

Answer 1

您可以使用遠程WMI和Win32_TimeZone class。您確實需要具有在該計算機上執行WMI查詢的權限。通過使用UTC而不是當地時間避免這樣的麻煩。

Answer 2

我給你一個解決方案，它使用WMI。您可能會或可能不會需要域名和安全信息：在Windows機器上

try 
{ 
    string pc = "pcname"; 
    //string domain = "yourdomain"; 
    //ConnectionOptions connection = new ConnectionOptions(); 
    //connection.Username = some username; 
    //connection.Password = somepassword; 
    //connection.Authority = "ntlmdomain:" + domain; 

    string wmipath = string.Format("\\\\{0}\\root\\CIMV2", pc); 
    //ManagementScope scope = new ManagementScope(
    // string.Format("\\\\{0}\\root\\CIMV2", pc), connection); 
    ManagementScope scope = new ManagementScope(wmipath); 
    scope.Connect(); 

    ObjectQuery query = new ObjectQuery(
     "SELECT * FROM Win32_LocalTime"); 

    ManagementObjectSearcher searcher = 
     new ManagementObjectSearcher(scope, query); 

    foreach (ManagementObject queryObj in searcher.Get()) 
    { 
     Console.WriteLine("-----------------------------------"); 
     Console.WriteLine("Win32_LocalTime instance"); 
     Console.WriteLine("-----------------------------------"); 

     Console.WriteLine("Date: {0}-{1}-{2}", queryObj["Year"], queryObj["Month"], queryObj["Day"]); 
     Console.WriteLine("Time: {0}:{1}:{2}", queryObj["Hour"], queryObj["Minute"], queryObj["Second"]); 
    } 
} 
catch (ManagementException err) 
{ 
    Console.WriteLine("An error occurred while querying for WMI data: " + err.Message); 
} 
catch (System.UnauthorizedAccessException unauthorizedErr) 
{ 
    Console.WriteLine("Connection error (user name or password might be incorrect): " + unauthorizedErr.Message); 
} 

Answer 3

有net time \\<remote-ip address>得到一個遠程計算機的時間。你可以使用它來查找遠程系統時間，如果你想要代碼，你可以把它包裝在函數中來執行C＃中的shell（DOS）函數。

Answer 4

由於WMI代碼將是非常緩慢的，你可以用下面的代碼來獲得更快的結果

  string machineName = "vista-pc"; 

      System.Diagnostics.Process proc = new System.Diagnostics.Process(); 
      proc.StartInfo.UseShellExecute = false; 
      proc.StartInfo.RedirectStandardOutput = true; 
      proc.StartInfo.FileName = "net"; 
      proc.StartInfo.Arguments = @"time \\" + machineName; 
      proc.Start(); 
      proc.WaitForExit(); 

      List<string> results = new List<string>(); 
      while (!proc.StandardOutput.EndOfStream) 
      { 
       string currentline = proc.StandardOutput.ReadLine(); 
       if (!string.IsNullOrEmpty(currentline)) 
       { 
        results.Add(currentline); 
       } 
      } 

      string currentTime = string.Empty; 
      if (results.Count > 0 && results[0].ToLower().StartsWith(@"current time at \\" +            machineName.ToLower() + " is ")) 
      { 
       currentTime = results[0].Substring((@"current time at \\" + machineName.ToLower() + " is        ").Length); 

       Console.WriteLine(DateTime.Parse(currentTime)); 
       Console.ReadLine(); 
      }