C#通过用户名与密码访问共享目录
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices; namespace FileTools
{
public class NetworkShareConnect
{ #region WNetUseConnection枚举参数
//dwScope
const int RESOURCE_CONNECTED = 0x00000001;
const int RESOURCE_GLOBALNET = 0x00000002;
const int RESOURCE_REMEMBERED = 0x00000003; //dwType
const int RESOURCETYPE_ANY = 0x00000000;
const int RESOURCETYPE_DISK = 0x00000001;
const int RESOURCETYPE_PRINT = 0x00000002; //dwDisplayType
const int RESOURCEDISPLAYTYPE_GENERIC = 0x00000000;
const int RESOURCEDISPLAYTYPE_DOMAIN = 0x00000001;
const int RESOURCEDISPLAYTYPE_SERVER = 0x00000002;
const int RESOURCEDISPLAYTYPE_SHARE = 0x00000003;
const int RESOURCEDISPLAYTYPE_FILE = 0x00000004;
const int RESOURCEDISPLAYTYPE_GROUP = 0x00000005; //dwUsage
const int RESOURCEUSAGE_CONNECTABLE = 0x00000001;
const int RESOURCEUSAGE_CONTAINER = 0x00000002; //dwFlags
const int CONNECT_INTERACTIVE = 0x00000008;
const int CONNECT_PROMPT = 0x00000010;
const int CONNECT_REDIRECT = 0x00000080;
const int CONNECT_UPDATE_PROFILE = 0x00000001;
const int CONNECT_COMMANDLINE = 0x00000800;
const int CONNECT_CMD_SAVECRED = 0x00001000; const int CONNECT_LOCALDRIVE = 0x00000100;
#endregion #region Errors参数
const int NO_ERROR = ; const int ERROR_ACCESS_DENIED = ;
const int ERROR_ALREADY_ASSIGNED = ;
const int ERROR_BAD_DEVICE = ;
const int ERROR_BAD_NET_NAME = ;
const int ERROR_BAD_PROVIDER = ;
const int ERROR_CANCELLED = ;
const int ERROR_EXTENDED_ERROR = ;
const int ERROR_INVALID_ADDRESS = ;
const int ERROR_INVALID_PARAMETER = ;
const int ERROR_INVALID_PASSWORD = ;
const int ERROR_MORE_DATA = ;
const int ERROR_NO_MORE_ITEMS = ;
const int ERROR_NO_NET_OR_BAD_PATH = ;
const int ERROR_NO_NETWORK = ; const int ERROR_BAD_PROFILE = ;
const int ERROR_CANNOT_OPEN_PROFILE = ;
const int ERROR_DEVICE_IN_USE = ;
const int ERROR_NOT_CONNECTED = ;
const int ERROR_OPEN_FILES = ; private struct ErrorClass
{
//定义错误类结构体
public int num;
public string message;
public ErrorClass(int num, string message)
{
this.num = num;
this.message = message;
}
} //连接失败信息汇总
private static ErrorClass[] ERROR_LIST = new ErrorClass[] {
new ErrorClass(ERROR_ACCESS_DENIED, "Error: Access Denied"),
new ErrorClass(ERROR_ALREADY_ASSIGNED, "Error: Already Assigned"),
new ErrorClass(ERROR_BAD_DEVICE, "Error: Bad Device"),
new ErrorClass(ERROR_BAD_NET_NAME, "Error: Bad Net Name"),
new ErrorClass(ERROR_BAD_PROVIDER, "Error: Bad Provider"),
new ErrorClass(ERROR_CANCELLED, "Error: Cancelled"),
new ErrorClass(ERROR_EXTENDED_ERROR, "Error: Extended Error"),
new ErrorClass(ERROR_INVALID_ADDRESS, "Error: Invalid Address"),
new ErrorClass(ERROR_INVALID_PARAMETER, "Error: Invalid Parameter"),
new ErrorClass(ERROR_INVALID_PASSWORD, "Error: Invalid Password"),
new ErrorClass(ERROR_MORE_DATA, "Error: More Data"),
new ErrorClass(ERROR_NO_MORE_ITEMS, "Error: No More Items"),
new ErrorClass(ERROR_NO_NET_OR_BAD_PATH, "Error: No Net Or Bad Path"),
new ErrorClass(ERROR_NO_NETWORK, "Error: No Network"),
new ErrorClass(ERROR_BAD_PROFILE, "Error: Bad Profile"),
new ErrorClass(ERROR_CANNOT_OPEN_PROFILE, "Error: Cannot Open Profile"),
new ErrorClass(ERROR_DEVICE_IN_USE, "Error: Device In Use"),
new ErrorClass(ERROR_EXTENDED_ERROR, "Error: Extended Error"),
new ErrorClass(ERROR_NOT_CONNECTED, "Error: Not Connected"),
new ErrorClass(ERROR_OPEN_FILES, "Error: Open Files"),
}; private static string getErrorForNumber(int errNum)
{
//遍历获得错误代码
foreach (ErrorClass er in ERROR_LIST)
{
if (er.num == errNum) return er.message;
}
return "Error: Unknown, " + errNum;
}
#endregion //调用系统函数WNetUseConnection
//用于连接共享
[DllImport("Mpr.dll")]
private static extern int WNetUseConnection(
IntPtr hwndOwner,
NETRESOURCE lpNetResource,
string lpPassword,
string lpUserID,
int dwFlags,
string lpAccessName,
string lpBufferSize,
string lpResult
);
//用于删除连接
[DllImport("Mpr.dll")]
private static extern int WNetCancelConnection2(
string lpName,
int dwFlags,
bool fForce
); [StructLayout(LayoutKind.Sequential)]
private class NETRESOURCE
{
public int dwScope = ;
public int dwType = ;
public int dwDisplayType = ;
public int dwUsage = ;
public string lpLocalName = "";//映射到本地的盘符，如"Z:"。不做驱动器映射，可为空
public string lpRemoteName = "";//共享的网络路径
public string lpComment = "";
public string lpProvider = "";
} /// <summary>
/// 连接共享
/// </summary>
/// <param name="remoteUNC">共享网络路径</param>
/// <param name="username">登录用户名</param>
/// <param name="password">密码</param>
/// <returns></returns>
public static string connectToShare(string remoteUNC, string username, string password)
{
return connectToRemote(remoteUNC, username, password, false);
} /// <summary>
/// 没用户密码连接
/// </summary>
/// <param name="remoteUNC">共享网络路径</param>
/// <returns></returns>
public static string connectToShare(string remoteUNC)
{
return connectToRemote(remoteUNC, "", "", true);
} private static string connectToRemote(string remoteUNC, string username, string password, bool promptUser)
{
NETRESOURCE nr = new NETRESOURCE
{
dwType = RESOURCETYPE_DISK,
lpRemoteName = remoteUNC
}; int ret;
if (promptUser)
ret = WNetUseConnection(IntPtr.Zero, nr, "", "", CONNECT_INTERACTIVE | CONNECT_PROMPT, null, null, null);
else
ret = WNetUseConnection(IntPtr.Zero, nr, password, username, , null, null, null); if (ret == NO_ERROR) return null;
return getErrorForNumber(ret);
} public static string disconnectRemote(string remoteUNC)
{
int ret = WNetCancelConnection2(remoteUNC, CONNECT_UPDATE_PROFILE, false);
if (ret == NO_ERROR) return null;
return getErrorForNumber(ret);
} }
}
测试：
string _Server=this.txtServer.Text.Trim();
string _ID=this.txtID.Text.Trim();
string _Password=this.txtPassword.Text.Trim(); string _ConnMsg = NetworkShareConnect.connectToShare(_Server, _ID, _Password);
if (_ConnMsg == null)
{ this.myGroupBox_Green1.BackColor = Color.FromName("Green");
this.lblMessage.Text = "连接成功,正在上传文件至服务器...";
FileHelper.MoveFiles(this.txtPath.Text, _Server, true, true);
}
else
{
this.myGroupBox_Green1.BackColor = Color.FromName("Red");
this.lblMessage.Text = "错误:检测到无法连接至服务器."; this.timer1.Enabled = false;
this.btnStart.Enabled = true;
this.btnStart.Text = "Start";
}