根据用户名/密码Copy局域网中指定文件夹里的文件

代码如下:

        public static void OpenDirectory(string str_Directory,string to_Directory, string str_UserName, string str_Password)
        {
            string str_LogoOn = "net use " + str_Directory + " /user:" + str_UserName + " \"" + str_Password + "\"";
            string str_OpenDirectory = "start " + str_Directory;

            Process p_Tmp = new Process();
            p_Tmp.StartInfo.RedirectStandardError = true;
            p_Tmp.StartInfo.RedirectStandardInput = true;
            p_Tmp.StartInfo.RedirectStandardOutput = true;
            p_Tmp.StartInfo.UseShellExecute = false;
            p_Tmp.StartInfo.CreateNoWindow = true;
            p_Tmp.StartInfo.FileName = "cmd.exe";
            p_Tmp.Start();
            p_Tmp.StandardInput.WriteLine(str_LogoOn);
            p_Tmp.StandardInput.WriteLine(str_OpenDirectory);
            p_Tmp.StandardInput.WriteLine("exit");
            p_Tmp.Close();
            p_Tmp.Dispose();

            string[] files = Directory.GetFiles(fromDirectory);
            if (files.Length > 0)
            {
                foreach (string s in files)
                {
                    FileInfo objFI = new System.IO.FileInfo(s);
                    File.Copy(str_Directory + "\\" + objFI.Name.ToString(), to_Directory + "\\" + objFI.Name.ToString());
                }
            }
        }

加入以下namespace:
using System.Diagnostics;
还可以通过using System.Management;实现具体代码还未完成
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以上方法做成服务在本机运行正常,可放在服务器怎么也执行不了,没发了,换招.
用WNetAddConnection2函数
using System.Runtime.InteropServices;

        [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;
        }

調用方法：

            NETRESOURCE myNetResource = new NETRESOURCE();        
            myNetResource.dwScope = 2;       //2:RESOURCE_GLOBALNET            
            myNetResource.dwType = 1 ;       //1:RESOURCETYPE_ANY             
            myNetResource.dwDisplayType = 3; //3:RESOURCEDISPLAYTYPE_GENERIC           
            myNetResource.dwUsage = 1;       //1: RESOURCEUSAGE_CONNECTABLE     
            myNetResource.LocalName = "T:";
            myNetResource.RemoteName = @"\\172.16.20.12\e$\CCL_Development\ProExcelTest\Engg_Index_DFS\Report";        
            myNetResource.Provider = null;
            WNetAddConnection2(myNetResource, "jinseyd00", "cclsjpdc1\\wusf",0);
            WNetCancelConnection2("T:",1, true);

映射为本机,然后再操作,完成后删除.
参考:愚翁专栏