C# 访问网络路径共享目录
C#实现访问网络共享文件夹，使用 WNetAddConnection2A 和 WNetCancelConnection2A。在目标服务器建立共享文件夹，建立访问账号test;
public enum ERROR_ID { ERROR_SUCCESS = 0,// Success ERROR_BUSY = 170, ERROR_MORE_DATA = 234, ERROR_NO_BROWSER_SERVERS_FOUND = 6118, ERROR_INVALID_LEVEL = 124, ERROR_ACCESS_DENIED = 5, ERROR_INVALID_PASSWORD = 86, ERROR_INVALID_PARAMETER = 87, ERROR_BAD_DEV_TYPE = 66, ERROR_NOT_ENOUGH_MEMORY = 8, ERROR_NETWORK_BUSY = 54, ERROR_BAD_NETPATH = 53, 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 } 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 } public struct NETRESOURCE { public RESOURCE_SCOPE dwScope; public RESOURCE_TYPE dwType; public RESOURCE_DISPLAYTYPE dwDisplayType; public RESOURCE_USAGE dwUsage; public string lpLocalName; public string lpRemoteName; public string lpComment; public string lpProvider; } public class NetworkConnection { public static extern int WNetAddConnection2A (NETRESOURCE[] lpNetResource, string lpPassword, string lpUserName, int dwFlags); public static extern int WNetCancelConnection2A (string sharename, int dwFlags, int fForce); public static int Connect (string remotePath, string localPath, string username, string password) { NETRESOURCE[] share_driver = new NETRESOURCE; share_driver.dwScope = RESOURCE_SCOPE.RESOURCE_GLOBALNET; share_driver.dwType = RESOURCE_TYPE.RESOURCETYPE_DISK; share_driver.dwDisplayType = RESOURCE_DISPLAYTYPE.RESOURCEDISPLAYTYPE_SHARE; share_driver.dwUsage = RESOURCE_USAGE.RESOURCEUSAGE_CONNECTABLE; share_driver.lpLocalName = localPath; share_driver.lpRemoteName = remotePath; Disconnect(localPath); int ret = WNetAddConnection2A(share_driver, password, username, 1); return ret; } public static int Disconnect (string localpath) { return WNetCancelConnection2A(localpath, 1, 1); }//调用方式： public static void TestNetWorkConnection() { string localpath = "X:"; int status = NetworkConnection.Connect(@"\\192.168.0.2\test", localpath, @"test", "test"); //int status = NetworkConnection.Connect(@"\\tyb\TempImages", localpath, @"tyb", "0."); if (status == (int)ERROR_ID.ERROR_SUCCESS) { FileStream fs = File.Open(localpath + @"\\1.txt", FileMode.Open,FileAccess.Read); //using (StreamWriter stream = new StreamWriter(fs)) //{ // stream.WriteLine("你好呀，成功了"); // stream.Flush(); // stream.Close(); //} fs.Close(); } else { Console.WriteLine(status); } NetworkConnection.Disconnect(localpath); }}
参考文档：
http://support.microsoft.com/kb/173011
http://support.microsoft.com/kb/842789
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