C# 使用C关闭打开的文件#

我的情况是，人们连接到共享上的文件，它阻止我覆盖该文件。我正在尝试编写一个方法，查看我提供的文件路径当前是否以这种方式锁定，并关闭此资源的网络会话

我查看了ADSI Winnt提供程序，但没有实现Resources.Remove成员。然后我查看了Win32_ServerSession，虽然我可以使用Delete member，但它会杀死给定用户的所有资源。我需要弄清楚如何更加具体

---

<> P>我一直在寻找关系和财产，但现在我只是被难住了。

很难考虑这么做的所有后果，因为你不一定预测当前文件锁定的应用程序的行为。 还有别的办法吗？例如，您是否必须立即覆盖该文件，或者是否可以让某个外部进程每隔几分钟不断尝试覆盖该文件，直到覆盖成功？

我也遇到了同样的问题。 到目前为止，我知道的唯一方法是使用Win32API：

[DllImport("Netapi32.dll", SetLastError=true, CharSet = CharSet.Unicode)] public static extern int NetFileClose(string servername, int id); [DllImport（“Netapi32.dll”，SetLastError=true，CharSet=CharSet.Unicode）] 公共静态外部intnetfileclose（字符串servername，intid）； 我做了一个简短的尝试来实现这一点，我可以正确地枚举文件， 但是在我的代码中——我只是查看了一下——关闭一个文件的代码 设置为注释。如果您愿意尝试一下，我可以告诉您发送了一个库[wrapper around NetFileXXX]和一个简短的演示，但是，正如我所说的：我从未关闭过一个文件。但这可能是实现这一目标的捷径

我不知道，现在如何在stackoverflow上交换文件：-（

---

br--mabra

您可以使用提供完整文件路径的代码，它将返回锁定该文件的任何内容的

列表：

using System.Runtime.InteropServices;
using System.Diagnostics;

static public class FileUtil
{
    [StructLayout(LayoutKind.Sequential)]
    struct RM_UNIQUE_PROCESS
    {
        public int dwProcessId;
        public System.Runtime.InteropServices.ComTypes.FILETIME ProcessStartTime;
    }

    const int RmRebootReasonNone = 0;
    const int CCH_RM_MAX_APP_NAME = 255;
    const int CCH_RM_MAX_SVC_NAME = 63;

    enum RM_APP_TYPE
    {
        RmUnknownApp = 0,
        RmMainWindow = 1,
        RmOtherWindow = 2,
        RmService = 3,
        RmExplorer = 4,
        RmConsole = 5,
        RmCritical = 1000
    }

    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    struct RM_PROCESS_INFO
    {
        public RM_UNIQUE_PROCESS Process;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCH_RM_MAX_APP_NAME + 1)]
        public string strAppName;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = CCH_RM_MAX_SVC_NAME + 1)]
        public string strServiceShortName;

        public RM_APP_TYPE ApplicationType;
        public uint AppStatus;
        public uint TSSessionId;
        [MarshalAs(UnmanagedType.Bool)]
        public bool bRestartable;
    }

    [DllImport("rstrtmgr.dll", CharSet = CharSet.Unicode)]
    static extern int RmRegisterResources(uint pSessionHandle,
                                          UInt32 nFiles,
                                          string[] rgsFilenames,
                                          UInt32 nApplications,
                                          [In] RM_UNIQUE_PROCESS[] rgApplications,
                                          UInt32 nServices,
                                          string[] rgsServiceNames);

    [DllImport("rstrtmgr.dll", CharSet = CharSet.Auto)]
    static extern int RmStartSession(out uint pSessionHandle, int dwSessionFlags, string strSessionKey);

    [DllImport("rstrtmgr.dll")]
    static extern int RmEndSession(uint pSessionHandle);

    [DllImport("rstrtmgr.dll")]
    static extern int RmGetList(uint dwSessionHandle,
                                out uint pnProcInfoNeeded,
                                ref uint pnProcInfo,
                                [In, Out] RM_PROCESS_INFO[] rgAffectedApps,
                                ref uint lpdwRebootReasons);

    /// <summary>
    /// Find out what process(es) have a lock on the specified file.
    /// </summary>
    /// <param name="path">Path of the file.</param>
    /// <returns>Processes locking the file</returns>
    /// <remarks>See also:
    /// http://msdn.microsoft.com/en-us/library/windows/desktop/aa373661(v=vs.85).aspx
    /// http://wyupdate.googlecode.com/svn-history/r401/trunk/frmFilesInUse.cs (no copyright in code at time of viewing)
    /// 
    /// </remarks>
    static public List<Process> WhoIsLocking(string path)
    {
        uint handle;
        string key = Guid.NewGuid().ToString();
        List<Process> processes = new List<Process>();

        int res = RmStartSession(out handle, 0, key);
        if (res != 0) throw new Exception("Could not begin restart session.  Unable to determine file locker.");

        try
        {
            const int ERROR_MORE_DATA = 234;
            uint pnProcInfoNeeded = 0,
                 pnProcInfo = 0,
                 lpdwRebootReasons = RmRebootReasonNone;

            string[] resources = new string[] { path }; // Just checking on one resource.

            res = RmRegisterResources(handle, (uint)resources.Length, resources, 0, null, 0, null);

            if (res != 0) throw new Exception("Could not register resource.");                                    

            //Note: there's a race condition here -- the first call to RmGetList() returns
            //      the total number of process. However, when we call RmGetList() again to get
            //      the actual processes this number may have increased.
            res = RmGetList(handle, out pnProcInfoNeeded, ref pnProcInfo, null, ref lpdwRebootReasons);

            if (res == ERROR_MORE_DATA)
            {
                // Create an array to store the process results
                RM_PROCESS_INFO[] processInfo = new RM_PROCESS_INFO[pnProcInfoNeeded];
                pnProcInfo = pnProcInfoNeeded;

                // Get the list
                res = RmGetList(handle, out pnProcInfoNeeded, ref pnProcInfo, processInfo, ref lpdwRebootReasons);
                if (res == 0)
                {
                    processes = new List<Process>((int)pnProcInfo);

                    // Enumerate all of the results and add them to the 
                    // list to be returned
                    for (int i = 0; i < pnProcInfo; i++)
                    {
                        try
                        {
                            processes.Add(Process.GetProcessById(processInfo[i].Process.dwProcessId));
                        }
                        // catch the error -- in case the process is no longer running
                        catch (ArgumentException) { }
                    }
                }
                else throw new Exception("Could not list processes locking resource.");                    
            }
            else if (res != 0) throw new Exception("Could not list processes locking resource. Failed to get size of result.");                    
        }
        finally
        {
            RmEndSession(handle);
        }

        return processes;
    }
}

或网络计算机：

public static void localProcessKill(string processName)
{
    foreach (Process p in Process.GetProcessesByName(processName))
    {
        p.Kill();
    }
}

public static void remoteProcessKill(string computerName, string fullUserName, string pword, string processName)
{
    var connectoptions = new ConnectionOptions();
    connectoptions.Username = fullUserName;  // @"YourDomainName\UserName";
    connectoptions.Password = pword;

    ManagementScope scope = new ManagementScope(@"\\" + computerName + @"\root\cimv2", connectoptions);

    // WMI query
    var query = new SelectQuery("select * from Win32_process where name = '" + processName + "'");

    using (var searcher = new ManagementObjectSearcher(scope, query))
    {
        foreach (ManagementObject process in searcher.Get()) 
        {
            process.InvokeMethod("Terminate", null);
            process.Dispose();
        }
    }
}

参考文献：


我会给你一个“不要那样做”的答案：-）我知道我没有给出我为什么需要这样做的原因，但它们是真实的。幸运的是，我把任务交给了其他人。：-）我不知道你是否能做到——如果你能做到，这明智吗？备选方案-你可以通过电子邮件、应用程序等方式向用户发送消息吗？嗨，克里斯。在我看来，在网络上自动部署读/写资源文件总是错误的。我唯一会这样做的情况是，如果文件本身都是只读的设计-但再次作为安装开发人员，我们总是面临“只做它”的心态。我使用C#和FileSystemWatcher实现了一个网络共享文件写入检查器。它从未起作用，因为引发的事件因基线硬件而异。下面是一些细节：实际上这个问题与部署/设置无关。在这种情况下，一个自动构建试图归档到一个已知的文件夹，但有一些被锁定的文件挡住了去路。
public static void remoteProcessKill(string computerName, string fullUserName, string pword, string processName)
{
    var connectoptions = new ConnectionOptions();
    connectoptions.Username = fullUserName;  // @"YourDomainName\UserName";
    connectoptions.Password = pword;

    ManagementScope scope = new ManagementScope(@"\\" + computerName + @"\root\cimv2", connectoptions);

    // WMI query
    var query = new SelectQuery("select * from Win32_process where name = '" + processName + "'");

    using (var searcher = new ManagementObjectSearcher(scope, query))
    {
        foreach (ManagementObject process in searcher.Get()) 
        {
            process.InvokeMethod("Terminate", null);
            process.Dispose();
        }
    }
}