我試圖找出如何以編程方式（我使用C＃）確定我的工作站有當前地圖的服務器的名稱（或i.p.）。換句話說，在Windows資源管理器中的某個點，我將網絡驅動器映射爲驅動器號（或者使用「net use w：」來映射它）。我知道如何在系統上的網絡驅動器：如何以編程方式發現系統上的映射網絡驅動器及其服務器名稱？
DriveInfo[] allDrives = DriveInfo.GetDrives();
foreach (DriveInfo d in allDrives)
{
if (d.IsReady && d.DriveType == DriveType.Network)
{
}
}
但DriveInfo類沒有告訴我什麼服務器和共享文件夾映射驅動器與關聯的屬性。有什麼地方我應該看？
您是否嘗試過使用WMI來做到這一點？
using System;
using System.Management;
using System.Windows.Forms;
public static void Main()
{
try
{
var searcher = new ManagementObjectSearcher(
"root\\CIMV2",
"SELECT * FROM Win32_MappedLogicalDisk");
foreach (ManagementObject queryObj in searcher.Get())
{
Console.WriteLine("-----------------------------------");
Console.WriteLine("Win32_MappedLogicalDisk instance");
Console.WriteLine("-----------------------------------");
Console.WriteLine("Access: {0}", queryObj["Access"]);
Console.WriteLine("Availability: {0}", queryObj["Availability"]);
Console.WriteLine("BlockSize: {0}", queryObj["BlockSize"]);
Console.WriteLine("Caption: {0}", queryObj["Caption"]);
Console.WriteLine("Compressed: {0}", queryObj["Compressed"]);
Console.WriteLine("ConfigManagerErrorCode: {0}", queryObj["ConfigManagerErrorCode"]);
Console.WriteLine("ConfigManagerUserConfig: {0}", queryObj["ConfigManagerUserConfig"]);
Console.WriteLine("CreationClassName: {0}", queryObj["CreationClassName"]);
Console.WriteLine("Description: {0}", queryObj["Description"]);
Console.WriteLine("DeviceID: {0}", queryObj["DeviceID"]);
Console.WriteLine("ErrorCleared: {0}", queryObj["ErrorCleared"]);
Console.WriteLine("ErrorDescription: {0}", queryObj["ErrorDescription"]);
Console.WriteLine("ErrorMethodology: {0}", queryObj["ErrorMethodology"]);
Console.WriteLine("FileSystem: {0}", queryObj["FileSystem"]);
Console.WriteLine("FreeSpace: {0}", queryObj["FreeSpace"]);
Console.WriteLine("InstallDate: {0}", queryObj["InstallDate"]);
Console.WriteLine("LastErrorCode: {0}", queryObj["LastErrorCode"]);
Console.WriteLine("MaximumComponentLength: {0}", queryObj["MaximumComponentLength"]);
Console.WriteLine("Name: {0}", queryObj["Name"]);
Console.WriteLine("NumberOfBlocks: {0}", queryObj["NumberOfBlocks"]);
Console.WriteLine("PNPDeviceID: {0}", queryObj["PNPDeviceID"]);
if(queryObj["PowerManagementCapabilities"] == null)
Console.WriteLine("PowerManagementCapabilities: {0}", queryObj["PowerManagementCapabilities"]);
else
{
UInt16[] arrPowerManagementCapabilities = (UInt16[])(queryObj["PowerManagementCapabilities"]);
foreach (UInt16 arrValue in arrPowerManagementCapabilities)
{
Console.WriteLine("PowerManagementCapabilities: {0}", arrValue);
}
}
Console.WriteLine("PowerManagementSupported: {0}", queryObj["PowerManagementSupported"]);
Console.WriteLine("ProviderName: {0}", queryObj["ProviderName"]);
Console.WriteLine("Purpose: {0}", queryObj["Purpose"]);
Console.WriteLine("QuotasDisabled: {0}", queryObj["QuotasDisabled"]);
Console.WriteLine("QuotasIncomplete: {0}", queryObj["QuotasIncomplete"]);
Console.WriteLine("QuotasRebuilding: {0}", queryObj["QuotasRebuilding"]);
Console.WriteLine("SessionID: {0}", queryObj["SessionID"]);
Console.WriteLine("Size: {0}", queryObj["Size"]);
Console.WriteLine("Status: {0}", queryObj["Status"]);
Console.WriteLine("StatusInfo: {0}", queryObj["StatusInfo"]);
Console.WriteLine("SupportsDiskQuotas: {0}", queryObj["SupportsDiskQuotas"]);
Console.WriteLine("SupportsFileBasedCompression: {0}", queryObj["SupportsFileBasedCompression"]);
Console.WriteLine("SystemCreationClassName: {0}", queryObj["SystemCreationClassName"]);
Console.WriteLine("SystemName: {0}", queryObj["SystemName"]);
Console.WriteLine("VolumeName: {0}", queryObj["VolumeName"]);
Console.WriteLine("VolumeSerialNumber: {0}", queryObj["VolumeSerialNumber"]);
}
}
catch (ManagementException ex)
{
MessageBox.Show("An error occurred while querying for WMI data: " + ex.Message);
}
}
，使之變得更輕鬆上手下載WMI Code Creater
您是否知道是否有方法確定它們是否設置爲在登錄時重新連接？ – 2010-08-30 17:08:11
您不幸的是必須通過P/Invoke使用WinAPI。它將需要使用WNetGetUniversalName和UNIVERSAL_NAME_INFO結構。您檢查如果使用GetFullPath擴展路徑不等於擴展路徑的通用名稱，那麼您知道它已被映射。基本的僞代碼如下（0錯誤校驗，最低限度）：
var nfo = new UNIVERSAL_NAME_INFO();
var size = Marshal.SizeOf(nfo);
if (ERROR_MORE_DATA == WNetGetUniversalName(path, InfoLevel.UniversalName,
ref nfo, ref size)
{
var buffer = Marshal.AllocHGlobal(size);
if (NO_ERROR == WNetGetUniversalName(path, InfoLevel.UniversalName,
buffer, ref size))
{
nfo = (UNIVERSAL_NAME_INFO)Marshal.PtrToStructure(buffer,
typeof(UNIVERSAL_NAME_INFO));
}
}
下面是在P/Invoke的聲明，它應該幫助你走好人生路：
internal class NativeMethods
{
/// <summary>
/// The type of structure that the function stores in the buffer.
/// </summary>
public enum InfoLevel
{
/// <summary>
/// The function stores a <see cref="UNIVERSAL_NAME_INFO"/> structure in the
/// buffer.
/// </summary>
UniversalName = 1,
/// <summary>
/// The function stores a <c>REMOTE_NAME_INFO</c> structure in the buffer.
/// </summary>
/// <remarks>
/// Using this level will throw an <see cref="NotSupportedException"/>.
/// </remarks>
RemoteName = 2
}
/// <summary>
/// The <see cref="WNetGetUniversalName(string,int,UNIVERSAL_NAME_INFO,int)"/> function
/// takes a drive-based path for a network resource and returns an information
/// structure that contains a more universal form of the name.
/// </summary>
/// <param name="lpLocalPath">A pointer to a constant null-terminated string that
/// is a drive-based path for a network resource.</param>
/// <param name="dwInfoLevel">The type of structure that the function stores in
/// the buffer pointed to by the <paramref name="lpBuffer"/> parameter.</param>
/// <param name="lpBuffer">A pointer to a buffer that receives the structure
/// specified by the <paramref name="dwInfoLevel"/> parameter.</param>
/// <param name="lpBufferSize">A pointer to a variable that specifies the size,
/// in bytes, of the buffer pointed to by the <paramref name="lpBuffer"/> parameter.</param>
/// <returns>If the function succeeds, the return value is <see cref="NO_ERROR"/>.</returns>
[DllImport("mpr.dll", CharSet = CharSet.Auto)]
public static extern int WNetGetUniversalName(
string lpLocalPath,
InfoLevel dwInfoLevel,
ref UNIVERSAL_NAME_INFO lpBuffer,
ref int lpBufferSize);
/// <summary>
/// The <see cref="WNetGetUniversalName(string,int,IntPtr,int)"/> function
/// takes a drive-based path for a network resource and returns an information
/// structure that contains a more universal form of the name.
/// </summary>
/// <param name="lpLocalPath">A pointer to a constant null-terminated string that
/// is a drive-based path for a network resource.</param>
/// <param name="dwInfoLevel">The type of structure that the function stores in
/// the buffer pointed to by the <paramref name="lpBuffer"/> parameter.</param>
/// <param name="lpBuffer">A pointer to a buffer that receives the structure
/// specified by the <paramref name="dwInfoLevel"/> parameter.</param>
/// <param name="lpBufferSize">A pointer to a variable that specifies the size,
/// in bytes, of the buffer pointed to by the <paramref name="lpBuffer"/> parameter.</param>
/// <returns>If the function succeeds, the return value is <see cref="NO_ERROR"/>.</returns>
[DllImport("mpr.dll", CharSet = CharSet.Auto)]
public static extern int WNetGetUniversalName(
string lpLocalPath,
InfoLevel dwInfoLevel,
IntPtr lpBuffer,
ref int lpBufferSize);
/// <summary>
/// The <see cref="UNIVERSAL_NAME_INFO"/> structure contains a pointer to a
/// Universal Naming Convention (UNC) name string for a network resource.
/// </summary>
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public struct UNIVERSAL_NAME_INFO
{
/// <summary>
/// Pointer to the null-terminated UNC name string that identifies a
/// network resource.
/// </summary>
[MarshalAs(UnmanagedType.LPTStr)]
public string lpUniversalName;
}
}
你可以使用WMI枚舉和查詢映射的驅動器。以下代碼枚舉映射的驅動器，提取服務器名稱部分並打印出來。
using System;
using System.Text.RegularExpressions;
using System.Management;
namespace ConsoleApplication1 {
class Program {
static void Main(string[] args) {
ManagementObjectSearcher searcher = new ManagementObjectSearcher(
"select * from Win32_MappedLogicalDisk");
foreach (ManagementObject drive in searcher.Get()) {
Console.WriteLine(Regex.Match(
drive["ProviderName"].ToString(),
@"\\\\([^\\]+)").Groups[1]);
}
}
}
}
}
你知道是否有辦法確定它們是否設置爲在登錄時重新連接？ – 2010-08-30 17:08:38
我想出瞭如何確定它是否會在登錄時重新連接（涉及註冊表訪問，發佈爲下面的答案） – 2010-08-30 17:56:13
我發現這樣做的另一種方式，它採用貼技術sixlettervariables的一部分。我喜歡關於各種技術的利弊的一些反饋。例如，我的方式是否有缺點，例如它不起作用的情況？
[DllImport("mpr.dll")]
static extern uint WNetGetConnection(string lpLocalName, StringBuilder lpRemoteName, ref int lpnLength);
internal static bool IsLocalDrive(String driveName)
{
bool isLocal = true; // assume local until disproved
// strip trailing backslashes from driveName
driveName = driveName.Substring(0, 2);
int length = 256; // to be on safe side
StringBuilder networkShare = new StringBuilder(length);
uint status = WNetGetConnection(driveName, networkShare, ref length);
// does a network share exist for this drive?
if (networkShare.Length != 0)
{
// now networkShare contains a UNC path in format \\MachineName\ShareName
// retrieve the MachineName portion
String shareName = networkShare.ToString();
string[] splitShares = shareName.Split('\\');
// the 3rd array element now contains the machine name
if (Environment.MachineName == splitShares[2])
isLocal = true;
else
isLocal = false;
}
return isLocal;
}
這是從該代碼調用：
DriveInfo[] drives = DriveInfo.GetDrives();
foreach (DriveInfo drive in drives)
{
bool isLocal = IsLocalDrive(drive.Name);
if (isLocal)
{
// do whatever
}
}
的WMI方法不會告訴你的驅動器是否被設置爲重新連接上登錄。當您將驅動器設置爲在登錄時重新連接時，Windows將在HKCU \ Network \下創建一個密鑰。以下方法可用於確定驅動器是否設置爲在登錄時重新映射。
private static bool DriveSetForReconnect(string ComputerName, string DriveLetter)
{
RegistryKey key = RegistryKey.OpenRemoteBaseKey(RegistryHive.CurrentUser, ComputerName);
key = key.OpenSubKey("Network\\" + DriveLetter);
return key != null;
}
HTH！
編輯： 爲了使WMI解決方案適用於任何任意機器，您需要像下面的代碼一樣更改範圍參數。您顯然必須在遠程計算機上擁有管理員權限。
string scope = string.Format(@"\\{0}\root\CIMV2", ComputerName);
ManagementObjectSearcher searcher =
new ManagementObjectSearcher(scope,
"SELECT * FROM Win32_MappedLogicalDisk");
我們還可以使用net use找到映射網絡驅動器
通過map network drive path in C#啓發的IP地址或計算機名稱這裏是另一種簡單的方法，使用腳本對象：
private static IDictionary<DriveInfo, string> GetMappedNetworkDrives()
{
var rawDrives = new IWshRuntimeLibrary.IWshNetwork_Class()
.EnumNetworkDrives();
var result = new Dictionary<DriveInfo, string>(
rawDrives.length/2);
for (int i = 0; i < rawDrives.length; i += 2)
{
result.Add(
new DriveInfo(rawDrives.Item(i)),
rawDrives.Item(i + 1));
}
return result;
}
見https://msdn.microsoft.com/en-us/library/t9zt39at(v=vs.84).aspx爲有關IWshNetwork_Class的詳細信息。
天哪，我喜歡這個地方！提出一個問題，幾乎立即有人檢查一個很好的答案 - 在這種情況下，三個包含令人難以置信的有用材料的詳盡答覆。我希望我可以將它們全部標記爲已接受。周圍贊成，壽！謝謝！ – Cyberherbalist 2009-07-06 20:26:38