最近要实现访问远程主机的共享目录中的一个文件。遇到了权限问题。google了一下，找到了几种解决方法，记录如下：
一、调用Net use命令
// 使用方法：
//if (Connect("192.168.1.48", "用户名", "密码"))
//{
//    File.Copy(@"\192.168.1.48共享目录 est.txt",   @"e:\test.txt",   true);
//}
public bool Connect(string remoteHost, string userName, string passWord)
{
bool Flag = true;
Process proc = new Process();
proc.StartInfo.FileName = "cmd.exe";
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.RedirectStandardInput = true;
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardError = true;
proc.StartInfo.CreateNoWindow = true;
try
{
proc.Start();
string command = @"net  use  \" + remoteHost + "  " + passWord + "  " + "  /user:" + userName + ">NUL";
proc.StandardInput.WriteLine(command);
command = "exit";
proc.StandardInput.WriteLine(command);
while (proc.HasExited == false)
{
proc.WaitForExit(1000);
}
string errormsg = proc.StandardError.ReadToEnd();
if (errormsg != "")
Flag = false;
proc.StandardError.Close();
}
catch (Exception ex)
{
Flag = false;
}
finally
{
proc.Close();
proc.Dispose();
}
return Flag;
}
二、调用WNetAddConnection2、WNetAddConnection3或者NetUseAdd函数，进行磁盘映射。
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
namespace WindowsApplication1
{
public class MyMap
{
[DllImport("mpr.dll", EntryPoint = "WNetAddConnection2")]
public static extern uint WNetAddConnection2(
[In] NETRESOURCE lpNetResource,
string lpPassword,
string lpUsername,
uint dwFlags);
[DllImport("Mpr.dll")]
public static extern uint WNetCancelConnection2(
string lpName,
uint dwFlags,
bool fForce);
[StructLayout(LayoutKind.Sequential)]
public class NETRESOURCE
{
public int dwScope;
public int dwType;
public int dwDisplayType;
public int dwUsage;
public string LocalName;
public string RemoteName;
public string Comment;
public string Provider;
}
// remoteNetworkPath format:  @"\192.168.1.48sharefolder"
// localDriveName format:     @"E:"
public static bool CreateMap(string userName, string password, string remoteNetworkPath, string localDriveName)
{
NETRESOURCE myNetResource = new NETRESOURCE();
myNetResource.dwScope = 2;       //2:RESOURCE_GLOBALNET
myNetResource.dwType = 1;   &