c#下载共享文件夹下的文件并记录错误日志

 public void Run()
         {
             //获取目标文件列表
             string _ErrorMessage = "";
             string _ErrorMessageFile = "errorLog.txt";
             FileHelper fh = new FileHelper();
             string servername = "";//服务器地址
             string username = "";//用户名
             string password = "";//用户密码
             string filePath = "";//源文件目录
             string targetFilePath = "";//目标目录

             string _configtxt = "configtxt.txt";//配置文件
             string _foldertxt = "foldertxt.txt";//源文件及目标目录列表

             try
             {
                 //获取配置文件
                 string configRes = GetFileString(_configtxt);

                 if (configRes == "读取配置文件失败")
                 {
                     Console.WriteLine("读取配置文件失败");
                     _ErrorMessage = "读取配置文件失败";
                     WriteLog(_ErrorMessage, _ErrorMessageFile);
                     return;
                 }
                 //登录
                 Dictionary<string, string> dicconfig = GetDicFromStr(configRes);
                 try
                 {
                     servername = dicconfig["servername"];
                     username = dicconfig["username"];
                     password = dicconfig["password"];
                 }
                 catch
                 {
                     Console.WriteLine("配置文件错误");
                     _ErrorMessage = "配置文件错误";
                     WriteLog(_ErrorMessage, _ErrorMessageFile);
                     return;
                 }
                 //开始读取源文件数据
                 string folderRes = GetFileString(_foldertxt);
                 Dictionary<string, string> dicFolders = GetDicFromStr(folderRes);
                 string _defaultfolder = "";//默认拷贝目录
                 foreach (var folderdata in dicFolders)
                 {
                     if (folderdata.Key == "defaultfolder")
                     {
                         _defaultfolder = folderdata.Value;
                         continue;
                     }
                     filePath = folderdata.Key;//源文件目录

                     string temptargetFilePath = folderdata.Value == "" ? _defaultfolder : folderdata.Value;
                     //获取源文件后2个目录名
                     string toFilePath = filePath.Split('\\')[filePath.Split('\\').Length - ] + "\\" + filePath.Split('\\')[filePath.Split('\\').Length - ];
                     targetFilePath = temptargetFilePath.Trim('\\') + "\\" + toFilePath;//目标文件目录
                     if (!Directory.Exists(targetFilePath))
                     {
                         Directory.CreateDirectory(targetFilePath);
                     }

                     //建立连接并且下载
                     if (FileHelper.connectState(servername, username, password))
                     {
                         string[] fileArr = fh.readlist(filePath);
                         //剪切所有文件
                         foreach (string filename in fileArr)
                         {
                             try
                             {
                                 fh.FileMove(filename, targetFilePath.Trim('\\') + "\\" + GetFileNameFromPath(filename));
                             }
                             catch
                             {
                                 Console.WriteLine(filename + " 文件下载失败"+DateTime.Now.ToString());
                             }
                         }
                     }

                 }

             }
             catch(Exception ex)
             {
                 Console.WriteLine(ex.Message + ex.Source + ex.TargetSite);
                 _ErrorMessage = ex.Message + ex.Source + ex.TargetSite;
             }
             if (_ErrorMessage != "")
             {
                 WriteLog(_ErrorMessage, _ErrorMessageFile);
             }

         }
         //写错误日志
         private void WriteLog(string data,string logname)
         {
             try
             {
                 FileMode fm = FileMode.Append;
                 if (!File.Exists(System.AppDomain.CurrentDomain.BaseDirectory+logname))
                 {
                     fm = FileMode.CreateNew;
                 }
                 string configfilename = System.AppDomain.CurrentDomain.BaseDirectory + logname;
                 //读取文本文件
                 FileStream fs = new FileStream(configfilename, fm);
                 StreamWriter sw = new StreamWriter(fs, Encoding.Default);

                 sw.Write(DateTime.Now.ToString()+"---------"+ data);

                 //释放占用
                 sw.Close();
                 sw.Dispose();
                 fs.Close();
                 fs.Dispose();
             }
             catch
             {
             }

         }

         private Dictionary<string, string> GetDicFromStr(string sourcestr)
         {
             Dictionary<string, string> dicres = new Dictionary<string, string>();
             string[] datas = sourcestr.Replace("\r","").Split('\n');
             foreach (string data in datas)
             {
                 if (string.IsNullOrEmpty(data))
                 {
                     continue;
                 }
                 try
                 {
                     string[] dataarr = data.Split('=');
                     if (dataarr.Length == )
                     {

                         dicres.Add(dataarr[], dataarr[]);
                     }
                     else
                     {
                         dicres.Add(dataarr[], "");
                     }
                 }
                 catch
                 {

                 }
             }
             return dicres;
         }
         private string GetFileNameFromPath(string path)
         {
             return path.Split('\\')[path.Split('\\').Length - ];
         }
         private string GetFileString(string configname)
         {
             try
             {
                 string configfilename = System.AppDomain.CurrentDomain.BaseDirectory + configname;
                 //读取文本文件
                 FileStream fs = new FileStream(configfilename, FileMode.Open);
                 StreamReader m_streamReader = new StreamReader(fs, Encoding.Default);
                 m_streamReader.BaseStream.Seek(, SeekOrigin.Begin);
                 //获取数据
                 string myFileStr = m_streamReader.ReadToEnd();

                 //释放占用
                 m_streamReader.Close();
                 m_streamReader.Dispose();
                 fs.Close();
                 fs.Dispose();

                 return myFileStr;
             }
             catch
             {
                 return "读取配置文件失败";
             }
         }

Filehelper.cs内容

 public class FileHelper
     {

         System.Collections.ArrayList alst;

         //得到路径下所有文件(包括子文件夹下的文件)
         public string[] readlist(string path)
         {
             alst = new System.Collections.ArrayList();//建立ArrayList对象
             GetDirs(path);//得到文件夹
             return (string[])alst.ToArray(typeof(string));//把ArrayList转化为string[]
         }

         public void GetFiles(string dir)
         {
             try
             {
                 string[] files = Directory.GetFiles(dir);//得到文件
                 foreach (string file in files)//循环文件
                 {
                     string exname = file.Substring(file.LastIndexOf(".") + );//得到后缀名
                     // if (".txt|.aspx".IndexOf(file.Substring(file.LastIndexOf(".") + 1)) > -1)//查找.txt .aspx结尾的文件
                     //if (".txt".IndexOf(file.ToLower().Substring(file.LastIndexOf(".") + 1)) > -1)//如果后缀名为.txt文件
                     //{
                     //    FileInfo fi = new FileInfo(file);//建立FileInfo对象
                     //    alst.Add(fi.FullName);//把.txt文件全名加人到FileInfo对象
                     //}
                     FileInfo fi = new FileInfo(file);//建立FileInfo对象
                     alst.Add(fi.FullName);
                 }
             }
             catch
             {

             }
         }

         public void GetDirs(string d)//得到所有文件夹
         {
             GetFiles(d);//得到所有文件夹里面的文件
             try
             {
                 string[] dirs = Directory.GetDirectories(d);
                 foreach (string dir in dirs)
                 {
                     GetDirs(dir);//递归
                 }
             }
             catch
             {
             }
         }

         //文件剪切
         public void FileMove(string filePath, string toFilePath)
         {
             string dirPath = filePath;
             string sourcePath = toFilePath;
             FileInfo file = new FileInfo(dirPath);
             file.MoveTo(sourcePath);
         }
         //建立共享文件连接
         public static bool connectState(string path, string userName, string passWord)
         {
             bool Flag = false;
             Process proc = new Process();
             try
             {
                 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;
                 proc.Start();
                 string dosLine = @"net use " + path + " /user:" + userName + " " + passWord ;
                 proc.StandardInput.WriteLine(dosLine);
                 proc.StandardInput.WriteLine("exit");
                 while (!proc.HasExited)
                 {
                     proc.WaitForExit();
                 }
                 string errormsg = proc.StandardError.ReadToEnd();
                 proc.StandardError.Close();
                 if (string.IsNullOrEmpty(errormsg))
                 {
                     Flag = true;
                 }
                 else
                 {
                     throw new Exception(errormsg);
                 }
             }
             catch (Exception ex)
             {
                 throw ex;
             }
             finally
             {
                 proc.Close();
                 proc.Dispose();
             }
             return Flag;
         }  

     }