关于C#编写的服务中使用了WNetAddConnection2出现错误的问题

[laoshuxiaodidi]

大家好，最近做一个Windows服务是监听某光驱，一旦光驱有光盘时自动读取内容，并通过共享文件的方式传输到服务器上。

于是在网上找到了WNetAddConnection2的Windows API函数，通过此函数建立磁盘映射，例如：

将\\192.168.0.1\Share 文件夹映射成本地磁盘的 P：

在控制台程序中没有发生问题，映射磁盘 和 断开映射都非常成功。


但是将程序整理到 C#写的Windows服务时，在调用WNetAddConnection2 总是返回1312值（正常是返回0表示创建成功）
不明白为什么发生这种情况，请教版里的各位大神，这是为什么？

是因为Windows服务的权限问题吗？

还是WNetAddConnection2还依赖别的服务？

[B360749456]

有没有人来回答下，我正好也碰到这个问题，求助下

[B360749456]

public static class Drived
    {
        public enum ERROR_ID
        {
            ERROR_SUCCESS = 0,  // Success 
            ERROR_ACCESS_DENIED = 5,
            ERROR_NOT_ENOUGH_MEMORY = 8,
            ERROR_READ_FAULT = 30,
            Windows_cannot_find_the_network_path=51,
            ERROR_BAD_NETPATH = 53,
            ERROR_NETWORK_BUSY = 54,
            ERROR_NETWORK_ACCESS_DENIED = 65,
            ERROR_BAD_DEV_TYPE = 66,
            ERROR_BAD_NET_NAME = 67,
            ERROR_REQ_NOT_ACCEP = 71,
            ERROR_ALREADY_ASSIGNED = 85,
            ERROR_INVALID_PASSWORD = 86,
            ERROR_INVALID_PARAMETER = 87,
            ERROR_OPEN_FAILED = 110,
            ERROR_INVALID_LEVEL = 124,
            ERROR_BUSY = 170,
            ERROR_MORE_DATA = 234,
            ERROR_NO_BROWSER_SERVERS_FOUND = 6118,
            ERROR_NO_NETWORK = 1222,
            ERROR_INVALID_HANDLE_STATE = 1609,
            ERROR_EXTENDED_ERROR = 1208,
            ERROR_DEVICE_ALREADY_REMEMBERED = 1202,
            ERROR_NO_NET_OR_BAD_PATH = 1203,
            the_user_has_not_been_granted_the_requested_logon_type_at_this_computer = 1385,
            unknown_user_name_or_bad_password= 1326,
            ERROR_ACCOUNT_RESTRICTION =1327,
            ERROR_INVALID_WORKSTATION = 1329,
            logon_request_contained_an_invalid_logon_type_value = 1367,
        }

        public enum RESOURCE_SCOPE
        {
            RESOURCE_CONNECTED = 1,
            RESOURCE_GLOBALNET = 2,
            RESOURCE_REMEMBERED = 3,
            RESOURCE_RECENT = 4,
            RESOURCE_CONTEXT = 5
        }

        public enum RESOURCE_TYPE
        {
            RESOURCETYPE_ANY = 0,
            RESOURCETYPE_DISK = 1,
            RESOURCETYPE_PRINT = 2,
            RESOURCETYPE_RESERVED = 8,
        }

        public enum RESOURCE_USAGE
        {
            RESOURCEUSAGE_CONNECTABLE = 1,
            RESOURCEUSAGE_CONTAINER = 2,
            RESOURCEUSAGE_NOLOCALDEVICE = 4,
            RESOURCEUSAGE_SIBLING = 8,
            RESOURCEUSAGE_ATTACHED = 16,
            RESOURCEUSAGE_ALL = (RESOURCEUSAGE_CONNECTABLE | RESOURCEUSAGE_CONTAINER | RESOURCEUSAGE_ATTACHED),
        }

        public enum RESOURCE_DISPLAYTYPE
        {
            RESOURCEDISPLAYTYPE_GENERIC = 0,
            RESOURCEDISPLAYTYPE_DOMAIN = 1,
            RESOURCEDISPLAYTYPE_SERVER = 2,
            RESOURCEDISPLAYTYPE_SHARE = 3,
            RESOURCEDISPLAYTYPE_FILE = 4,
            RESOURCEDISPLAYTYPE_GROUP = 5,
            RESOURCEDISPLAYTYPE_NETWORK = 6,
            RESOURCEDISPLAYTYPE_ROOT = 7,
            RESOURCEDISPLAYTYPE_SHAREADMIN = 8,
            RESOURCEDISPLAYTYPE_DIRECTORY = 9,
            RESOURCEDISPLAYTYPE_TREE = 10,
            RESOURCEDISPLAYTYPE_NDSCONTAINER = 11
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct NETRESOURCE
        {
            public RESOURCE_SCOPE dwScope;
            public RESOURCE_TYPE dwType;
            public RESOURCE_DISPLAYTYPE dwDisplayType;
            public RESOURCE_USAGE dwUsage;

            [MarshalAs(UnmanagedType.LPStr)]
            public string lpLocalName;

            [MarshalAs(UnmanagedType.LPStr)]
            public string lpRemoteName;

            [MarshalAs(UnmanagedType.LPStr)]
            public string lpComment;

            [MarshalAs(UnmanagedType.LPStr)]
            public string lpProvider;
        }

        public class NetworkConnection
        {

            [DllImport("mpr.dll")]
            public static extern int WNetAddConnection2(NETRESOURCE[] lpNetResource, string lpPassword, string lpUserName, int dwFlags);

            [DllImport("mpr.dll")]
            public static extern int WNetCancelConnection2(string sharename, int dwFlags, int fForce);


            public static int Connect(string remotePath, string localPath, string username, string password)
            {
                NETRESOURCE[] share_driver = new NETRESOURCE[1];
                share_driver[0].dwScope = RESOURCE_SCOPE.RESOURCE_GLOBALNET;
                share_driver[0].dwType = RESOURCE_TYPE.RESOURCETYPE_DISK;
                share_driver[0].dwDisplayType = RESOURCE_DISPLAYTYPE.RESOURCEDISPLAYTYPE_SHARE;
                share_driver[0].dwUsage = RESOURCE_USAGE.RESOURCEUSAGE_CONNECTABLE;
                share_driver[0].lpLocalName = localPath;
                share_driver[0].lpRemoteName = remotePath;

                Disconnect(localPath);
                int ret = WNetAddConnection2(share_driver, password, username, 1);

                return ret;
            }

            public static int Disconnect(string localpath)
            {
                return WNetCancelConnection2(localpath, 1, 1);
            }
        }
    }

我用这段，可以映射成功