C#访问网络共享文件夹的方法

本文实例为大家分享了C#访问网络共享文件夹的具体代码，供大家参考，具体内容如下

using System.Runtime.InteropServices; 

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
 } 

 [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 WNetAddConnection2A(NETRESOURCE[] lpNetResource, string lpPassword, string lpUserName, int dwFlags); 

  [DllImport("mpr.dll")]
  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[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 = WNetAddConnection2A(share_driver, password, username, 1); 

   return ret;
  } 

  public static int Disconnect(string localpath)
  {
   return WNetCancelConnection2A(localpath, 1, 1);
  } 

} 

测试方法：

public void TestNetWorkConnection()
  {
   string localpath = "X:";
   //int status = NetworkConnection.Connect(@"//192.168.0.2/test", localpath, @"test", "test");
   int status = NetworkConnection.Connect("////192.168.0.2//test", localpath, @"test", "test");
   if (status == (int)ERROR_ID.ERROR_SUCCESS)
   {
    FileStream fs = new FileStream(localpath + @"//123.txt", FileMode.OpenOrCreate);
    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);
  }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持我们。