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 - 2] + "\" + filePath.Split('\')[filePath.Split('\').Length - 1];
                    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("
","").Split('
');
            foreach (string data in datas)
            {
                if (string.IsNullOrEmpty(data))
                {
                    continue;
                }
                try
                {
                    string[] dataarr = data.Split('=');
                    if (dataarr.Length == 2)
                    {
                        
                        dicres.Add(dataarr[0], dataarr[1]);
                    }
                    else
                    {
                        dicres.Add(dataarr[0], "");
                    }
                }
                catch
                {

                }
            }
            return dicres;
        }
        private string GetFileNameFromPath(string path)
        {
            return path.Split('\')[path.Split('\').Length - 1];
        }
        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(0, 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(".") + 1);//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(1000);
                }
                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;
        }  

    }