【基础巩固】文件流读写、大文件移动 FileStream StreamWriter File Path Directory/ ,m资料管理器（递归）

C#获取文件名扩展名

string fullPath = @"d:\test\default.avi";

string filename  = Path.GetFileName(fullPath);//返回带扩展名的文件名 "default.avi"

string extension = Path.GetExtension(fullPath);//扩展名 ".aspx"

string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fullPath);// 没有扩展名的文件名 "default"

string dirPath = Path.GetDirectoryName(filePath) //返回文件所在目录 "d:\test"

string fullPath1 = Path.Combine(@"d:\test", "default.avi")  //返回 "d:\test\default.avi"

string fullPath2 = Path.GetFullPath("config.ini");//返回指定路径字符串的绝对路径

测试图片

文件流
FileStream 可读可写大文件释放
StreamReader 读取释放
StreamWriter 写入释放
using 中释放
File 可读可写小文件

Path类针对字符串（路径）进行操作

Directory 操作文件夹

文件流读写

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace _09文件流

{

    class Program

    {

        static void Main(string[] args)

        {

            //string msg = "飞流直下三千尺";

            ////字符串转字节数组

            //byte[] buffer = System.Text.Encoding.UTF8.GetBytes(msg);

            ////字节数组转字符串

            //string str= System.Text.Encoding.UTF8.GetString(buffer);

            //把字符串写入到文件中,以流的方式写内容

            //using ( FileStream fs = new FileStream("1.txt", FileMode.Create, FileAccess.Write))

            //{

            //    string msg = "文能提笔控萝莉";

            //    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(msg);

            //    fs.Write(buffer, 0, buffer.Length);

            //}//Console.ReadKey();

            //fs.Close();//关闭流

            //fs.Flush();//清除缓冲区

            //fs.Dispose();//释放占用的资源 （这三个必须一起写，用using方式就不用这三个释放资源了）

            //以流的方式读数据

            using (FileStream fs = new FileStream("1.txt", FileMode.Open, FileAccess.Read))

            {

                byte[] buffer = new byte[fs.Length];

                fs.Read(buffer, , buffer.Length);

                string msg = System.Text.Encoding.UTF8.GetString(buffer);

                Console.WriteLine(msg);

            }

            Console.ReadKey();

        }

    }

}

大文件移动

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace _10大文件移动

{

    class Program

    {

        static void Main(string[] args)

        {

            //读的流

            using (FileStream fsRead=new FileStream(@"G:\视频\海盗.mkv",FileMode.Open, FileAccess.Read))

            {

                //写的流

                using (FileStream fsWrite=new FileStream(@"G:\电影\海盗.mkv", FileMode.Create, FileAccess.Write))

                {

                    //每次读取的大小是5M

                    byte[]buffer=new byte[**];

                    //实际(真正读取到的大小)

                   int r= fsRead.Read(buffer, , buffer.Length);

                   while (r>)

                   {

                       //写入

                       fsWrite.Write(buffer, , r);

                       Console.WriteLine("**");

                       //再读取

                       r = fsRead.Read(buffer, , buffer.Length);

                   }

                }

            }

            Console.WriteLine("ok了");

            Console.ReadKey();

        }

    }

}

另一种方式的读写

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace _11另一种方式的读和写

{

    class Program

    {

        static void Main(string[] args)

        {

            #region 读取数据

            //using (StreamReader reader = new StreamReader("1.txt",Encoding.Default))

            //{

            //只读取了一行

            //string msg= reader.ReadLine();

            //string msg;

            //要循环读取

            //while ((msg=reader.ReadLine())!=null)

            //{

            //    Console.WriteLine(msg);

            //}

            //一直读取到流的末尾

            //  string msg= reader.ReadToEnd();

            // Console.WriteLine(msg);

            //while (!reader.EndOfStream)

            //{

            //    Console.WriteLine(reader.ReadLine());

            //}

            // }

            #endregion

            #region 写入数据

            //using (StreamWriter write=new StreamWriter("one.txt"))

            //{

            //    write.Write("原来这也可以啊");

            //}

            #endregion

           // Console.ReadKey();

        }

    }

}

File(文件) 、Path（路径）类

File:

            //复制

            File.Copy(path1, path2); //path1现在有文件路径（带上文件E:\test\test.txt），path2目标文件路径

            //创建文件

            //File.Create("1.txt");

            // File.Delete();//删除

            //File.Exists();//判断该路径下的文件是否存在

            //File.Move();//移动

            //File.WriteAllLines();//

            //File.WriteAllText();

            // File.ReadAllLines();//

            //File.ReadAllText();

Path:

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace FilePath

{

    class Program

    {

        static void Main(string[] args)

        {

            string lujing = @"D:\Program Files (x86)\EditPlus 中文版\1.txt";

            //主要是更改后缀名

            string msg = Path.ChangeExtension(lujing, ".rar");

            Console.WriteLine(msg);

            string str1 = @"C:\Program Files (x86)\Microsoft\";

            string str2 = @"Exchange\Web Services\2.0\GettingStarted.doc";

            //合并路径的方法

            string msg = Path.Combine(str1, str2);

            Console.WriteLine(msg);

            string str = @"C:\Program Files (x86)\Microsoft\Exchange\Web Services\2.0\GettingStarted.doc";

            //查找某个文件所在的路径.

            string msg = Path.GetDirectoryName(str);

            Console.WriteLine(msg);

            Path.GetExtension();//返回扩展名

            //返回的是文件名和扩展名

            string msg = Path.GetFileName(str);

            Path.GetFileNameWithoutExtension();//只返回文件名

            //绝对路径

            string msg = Path.GetFullPath("1.txt");

            Console.WriteLine(msg);

            Console.ReadKey();

        }

    }

}

Directoty 文件夹类

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace _01文件夹类

{

    class Program

    {

        static void Main(string[] args)

        {

            //创建一个文件夹(目录),在指定的路径

            Directory.CreateDirectory("新文件夹");

            //如果想要删除该目录中所有的内容则采用这个方法的第二个重载,true即可

            Directory.Delete("新文件夹");

            Directory.Delete("新文件夹",true);

            //判断该路径下是否有这个文件夹

            Directory.Exists("新文件夹");

            //获取该目录中所有文件的路径(包含文件名)

            string[]path= Directory.GetFiles("新文件夹");

            //获取该目录中所有的文本文件

            string[]path= Directory.GetFiles("新文件夹","*.txt");

            Console.ReadKey();

        }

    }

}

资料管理器（递归）

CS后台代码（源码附件在图片里）

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO;

namespace _03资料管理器

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void Form1_Load(object sender, EventArgs e)

        {

            //窗体加载事件

            string path = "demo";

            LoadDirectory(path,tv.Nodes);

        }

        private void LoadDirectory(string path, TreeNodeCollection tnc)

        {

            //加载所有的目录

            string[] dires = Directory.GetDirectories(path);

            for (int i = ; i < dires.Length; i++)

            {

               string name= Path.GetFileNameWithoutExtension(dires[i]);

               TreeNode tn= tnc.Add(name);

                //递归

               LoadDirectory(dires[i],tn.Nodes);

            }

            //加载每个目录中的文件

           string[]files= Directory.GetFiles(path);

           for (int i = ; i < files.Length; i++)

           {

              string fileName= Path.GetFileNameWithoutExtension(files[i]);

             TreeNode tn1= tnc.Add(fileName);

             tn1.Tag = files[i];

               //要想读取文件就要找到这个文件的路径

           }

        }

        private void tv_DoubleClick(object sender, EventArgs e)

        {

            if (tv.SelectedNode.Tag!=null)

            {

               txt.Text= File.ReadAllText(tv.SelectedNode.Tag.ToString(),Encoding.Default);

            }

        }

    }

}

用户导出工具：

Export.ashx.cs

using DFS.Consumer.Cms.Sitecore_Modules.Shell.ExpUsers;

using DFS.Consumer.DataLayer;

using Newtonsoft.Json.Linq;

using System;

using System.Collections.Generic;

using System.Data;

using System.Data.SqlClient;

using System.Diagnostics;

using System.IO;

using System.Linq;

using System.Text;

using System.Web;

using System.Web.Configuration;

using System.Web.Script.Serialization;

namespace DFS.Consumer.Cms.Sitecore_Modules.Shell.UserExp

{

    /// <summary>

    /// Export 的摘要说明

    /// </summary>

    public class Export : IHttpHandler

    {

        string temp = string.Empty;

        public void ProcessRequest(HttpContext context)

        {

            context.Response.ContentType = "text/plain";

            Stopwatch watch = new Stopwatch();

            watch.Start();

            //CacheHelper.SetCache("tempvalue", System.DateTime.Now.ToShortTimeString());

            var tab = context.Request["tab"].ToString();

            switch (tab)

            {

                case "expcsv":

                    CacheHelper.SetCache("progressCount", "{'status':801,'msg':" +  + "}");

                    int num = string.IsNullOrEmpty(context.Request.Form["num"].ToString()) ?  : Convert.ToInt32(context.Request.Form["num"].ToString());

                    if (ButtonDownloadCsv_OnClick(num))

                    {

                        context.Response.Write("{'status':200,'msg':'complete'}");

                        CacheHelper.SetCache("progressCount", "{'status':700,'msg':" +  + "}");

                    }

                    else

                    {

                        context.Response.Write("{'status':500,'msg':'Export fails, please contact your administrator'}");

                    }

                    MyLog("总用时：" + watch.Elapsed + "\r\n ----------------------------------------\n");

                    break;

                case "getnum":

                    context.Response.Write(CacheHelper.GetCache("progressCount"));

                    //context.Response.Write("{'status':200,'msg':'" + CacheHelper.GetCache("progressCount") + "'}");

                    break;

                case "expdb":

                    CacheHelper.SetCache("progressCount", "{'status':801,'msg':" +  + "}");

                    int numdb = string.IsNullOrEmpty(context.Request.Form["num"].ToString()) ?  : Convert.ToInt32(context.Request.Form["num"].ToString());

                    if (ButtonDownloadDB_OnClick(numdb))

                    {

                        context.Response.Write("{'status':200,'msg':'complete'}");

                        CacheHelper.SetCache("progressCount", "{'status':700,'msg':" +  + "}");

                    }

                    else

                    {

                        context.Response.Write("{'status':500,'msg':'Export fails, please contact your administrator'}");

                    }

                    MyLog("总用时：" + watch.Elapsed + "\r\n ----------------------------------------\n");

                    break;

                case "del":

                    if (ClearDB_OnClick())

                    {

                        context.Response.Write("{'status':200,'msg':'Completed!'}");

                    }

                    else

                    {

                        context.Response.Write("{'status':500,'msg':'failure!'}");

                    }

                    break;

                case "download":

                    if (File.Exists(WebConfigurationManager.AppSettings["ExpUserData"] + "DFS_User_Accounts.csv"))

                    {

                        context.Response.ContentType = "application/octet-stream";

                        context.Response.AddHeader("content-disposition", "attachment;filename=DFS_User_Accounts.csv");

                        context.Response.WriteFile(WebConfigurationManager.AppSettings["ExpUserData"] + "DFS_User_Accounts.csv");

                    }

                    else

                    {

                        context.Response.Write("{'status':500,'msg':'no file!'}");

                    }

                    break;

                case "downloadstatus":

                    if (File.Exists(WebConfigurationManager.AppSettings["ExpUserData"] + "DFS_User_Accounts.csv"))

                    {

                        context.Response.Write("{'status':200,'msg':'exist'}");

                    }

                    else

                    {

                        context.Response.Write("{'status':500,'msg':'no file!'}");

                    }

                    break;

                case "getstatus":

                    if (CacheHelper.GetCache("progressCount")!=null)

                    {

                        int currentStatus = Convert.ToInt32(JObject.Parse(CacheHelper.GetCache("progressCount").ToString())["status"]);

                        if (currentStatus ==  || currentStatus == )

                        {

                            context.Response.Write("{'status':900,'msg':'Someone is exporting data to CSV, please wait until exportation is completed. Or you can click ‘Download CSV’ button to get last version of extraction data.'}");

                            break;

                        }

                    }

                    break;

            }

        }

        /// <summary>

        /// 插入到数据库

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        protected bool ButtonDownloadDB_OnClick(int num)

        {

            Stopwatch sw_sql = new Stopwatch();

            sw_sql.Start();

            //MemberShip SqlHelper.CreateInstance("corelive").run //(new SqlCommand("SELECT * FROM dbo.aspnet_Membership"));//

            Stopwatch watch_ship = new Stopwatch();

            watch_ship.Start();

            var list_mUser = GetListMemberShip();//GetActiveEmail();//

            MyLog("GetListMemberShip：" + watch_ship.Elapsed + "\n");

            Stopwatch watch_active = new Stopwatch();

            watch_active.Start();

            var list_Active = SqlHelper.CreateInstance("dfs").RunDynamicList("SELECT [Email] FROM [dbo].[CRMActivate]");

            MyLog("是否激活用时：" + watch_active.Elapsed + "\n");

            var builder = new StringBuilder();

            //var streamWriter = new StreamWriter();

            builder.AppendLine(@"""Account Name"",""Password"",""salt"",""Title"",""First Name"",""Surname"",""Country"",""Email"",""Gender"",""Address"",""Primary Area Code"",""Primary Contact Number"",""Secondary Area Code"",""Secondary Contact Number"",""Age Range"",""Preferred Language"",""Social Type"",""Social ID"",""Receive Newsletter"",""Receive Member Updates"",""Preferred DFS Location"",""Register Location"",""Register Language"",""ID"",""Social Email"",""Loyal T Number"",""Active Or Not"",""Register Date"",""Last Login Date"",""First Name On Passport"",""Last Name On Passport"",""Passport Number"",""Date Of Birth"",""Prefered Method Of Contact""");

            var listtemp = GetUserList(num, );

            int progressCount = ;

            Stopwatch watch_sql = new Stopwatch();

            watch_sql.Start();

            var sb = new StringBuilder();

            foreach (var user in listtemp)

            {

                if (progressCount %  == )

                {

                    CacheHelper.SetCache("progressCount", "{'status':200,'msg':" + progressCount + "}");//progressCount);

                    //progress.Text += System.DateTime.Now.ToShortTimeString() + ":" + "已导出数据：" + progressCount + "条\n";

                }

                var usertemp = list_mUser.Where(o => o.UserId == user.ID).FirstOrDefault();

                var password = string.Empty;

                var passwordSalt = string.Empty;

                if (list_mUser.Where(o => o.UserId == user.ID).FirstOrDefault() != null)

                {

                    password = usertemp.Password;

                    passwordSalt = usertemp.PasswordSalt;

                }

                else

                {

                    continue;

                }

                sb.Append(string.Format(@"

                INSERT INTO [UserExp].[dbo].[UserInfo]

                       ([AccountName]

                       ,[Password]

                       ,[Salt]

                       ,[Title]

                       ,[FirstName]

                       ,[Surname]

                       ,[Country]

                       ,[Email]

                       ,[Gender]

                       ,[Address]

                       ,[PrimaryAreaCode]

                       ,[PrimaryContactNumber]

                       ,[SecondaryAreaCode]

                       ,[SecondaryContactNumber]

                       ,[AgeRange]

                       ,[PreferredLanguage]

                       ,[SocialType]

                       ,[SocialID]

                       ,[ReceiveNewsletter]

                       ,[ReceiveMemberUpdates]

                       ,[PreferredDFSLocation]

                       ,[RegisterLocation]

                       ,[RegisterLanguage]

                       ,[ID]

                       ,[SocialEmail]

                       ,[LoyalTNumber]

                       ,[ActiveOrNot]

                       ,[RegisterDate]

                       ,[LastLoginDate]

                       ,[FirstNameOnPassport]

                       ,[LastNameOnPassport]

                       ,[PassportNumber]

                       ,[DateOfBirth]

                       ,[PreferedMethodOfContact])

                VALUES('{0}','{1}','{2}','{3}','{4}','{5}','{6}','{7}','{8}','{9}','{10}','{11}','{12}','{13}','{14}','{15}','{16}','{17}','{18}','{19}','{20}','{21}','{22}','{23}','{24}','{25}','{26}','{27}','{28}','{29}','{30}','{31}','{32}','{33}');",

                    HttpUtility.UrlEncode(user.AccountName),//解码：System.Web.HttpUtility.UrlDecode(s);

                    password,

                    passwordSalt,

                    HttpUtility.UrlEncode(user.UserTitle),

                    HttpUtility.UrlEncode(user.FirstName),

                    HttpUtility.UrlEncode(user.Surname),

                    HttpUtility.UrlEncode(user.Country),

                    HttpUtility.UrlEncode(user.Email),

                    HttpUtility.UrlEncode(user.Gender),

                     HttpUtility.UrlEncode(user.Address),

                    user.PrimaryAreaCode,//"Primary Area Code"),

                    user.PrimaryContactNumber,

                    user.SecondaryAreaCode,//"Secondary Area Code"),

                    user.SecondaryContactNumber,

                    HttpUtility.UrlEncode(user.AgeRange),

                    HttpUtility.UrlEncode(user.PreferredLanguage),

                    HttpUtility.UrlEncode(user.SocialType),

                    user.SocialID,

                    user.ReceiveNewsletter == "Yes" ?  : ,//"Receive Newsletter"),

                    user.ReceiveMemberUpdates == "Yes" ?  : ,//"Receive Member Updates"),

                    HttpUtility.UrlEncode(user.PreferredDFSLocation),//"Preferred DFS Location"),

                    HttpUtility.UrlEncode(user.RegLocation),

                    HttpUtility.UrlEncode(user.RegLanguage),

                    user.ID,

                    HttpUtility.UrlEncode(user.SocialEmail),

                    HttpUtility.UrlEncode(user.LoyalTNumber),

                    list_Active.Where(o => o.Email == user.Email).Count() >  ?  : ,

                    user.RegisterDate.ToString(),

                    user.LastLoginDate.ToString(),

                    HttpUtility.UrlEncode(user.FirstNameonPassport),//"First Name On Passport"),

                    HttpUtility.UrlEncode(user.LastNameonPassport),//"Last Name On Passport"),

                    user.PassportNumber,//"assport Number"),

                    user.DateOfBirth,

                    HttpUtility.UrlEncode(user.PreferredMethodofContact)));

                progressCount++;

            }

            MyLog("拼接SQL用时：" + watch_sql.Elapsed + "\r\n共：" + progressCount + "条");

            Stopwatch watch_io = new Stopwatch();

            watch_io.Start();

            var cmd = new SqlCommand(sb.ToString());

            SqlHelper.CreateInstance("userexp").RunNoneQuery(cmd);

            MyLog("执行SQL：" + watch_io.Elapsed + "\n");

            return true;

        }

        /// <summary>

        /// 清空数据库

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        protected bool ClearDB_OnClick()

        {

            var helper = SqlHelper.CreateInstance("userexp");

            const string insertQuery = @"delete UserInfo where 1=1;";

            var cmd = new SqlCommand(insertQuery);

            helper.RunNoneQuery(cmd);

            return true;

        }

        /// <summary>

        /// 插入到CSV 3.5万条1分钟左右

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="e"></param>

        protected bool ButtonDownloadCsv_OnClick(int num)

        {

            //MemberShip SqlHelper.CreateInstance("corelive").run //(new SqlCommand("SELECT * FROM dbo.aspnet_Membership"));//

            Stopwatch watch_ship = new Stopwatch();

            watch_ship.Start();

            var list_mUser = GetListMemberShip();//GetActiveEmail();//

            MyLog("GetListMemberShip：" + watch_ship.Elapsed + "\n");

            Stopwatch watch_active = new Stopwatch();

            watch_active.Start();

            var list_Active = SqlHelper.CreateInstance("dfs").RunDynamicList("SELECT [Email],[LoyalTNo] FROM [dbo].[CRMActivate]");

            MyLog("是否激活用时：" + watch_active.Elapsed + "\n");

            var builder = new StringBuilder();

            //var streamWriter = new StreamWriter();

            builder.AppendLine(@"""Account Name"",""Password"",""salt"",""Title"",""First Name"",""Surname"",""Country"",""Email"",""Gender"",""Address"",""Primary Area Code"",""Primary Contact Number"",""Secondary Area Code"",""Secondary Contact Number"",""Age Range"",""Preferred Language"",""Social Type"",""Social ID"",""Receive Newsletter"",""Receive Member Updates"",""Preferred DFS Location"",""Register Location"",""Register Language"",""ID"",""Social Email"",""Loyal T Number"",""Active Or Not"",""Register Date"",""Last Login Date"",""First Name On Passport"",""Last Name On Passport"",""Passport Number"",""Date Of Birth"",""Prefered Method Of Contact""");

            var listtemp = GetUserList(num, );

            int progressCount = ;

            Stopwatch watch_sql = new Stopwatch();

            watch_sql.Start();

            foreach (var user in listtemp)

            {

                if (progressCount %  == )

                {

                    CacheHelper.SetCache("progressCount", "{'status':200,'msg':" + progressCount + "}");//progressCount);

                    //progress.Text += System.DateTime.Now.ToShortTimeString() + ":" + "已导出数据：" + progressCount + "条\n";

                }

                if (string.IsNullOrEmpty(user.ID) || user.AccountName.StartsWith("sitecore"))

                {

                    continue;

                }

                var usertemp = list_mUser.Where(o => o.UserId == user.ID).FirstOrDefault();

                var password = string.Empty;

                var passwordSalt = string.Empty;

                if (list_mUser.Where(o => o.UserId == user.ID).FirstOrDefault() != null)

                {

                    password = usertemp.Password;

                    passwordSalt = usertemp.PasswordSalt;

                }

                //if (list_Active.Where(o=>o.Email==user.Email).FirstOrDefault()==null)

                //{

                //    continue;

                //}

                //MyLog(list_mUser.Where(o => o.UserId == user.ID).FirstOrDefault().Password);

                //password = String.Format(list_mUser.Where(o => o.UserId == new Guid(user.ID)).FirstOrDefault().Password);

                // password=string.IsNullOrEmpty( list_mUser.Where(o => o.UserId == new Guid(user.ID)).FirstOrDefault().Password)?"",list_mUser.Where(o => o.UserId == new Guid(user.ID)).FirstOrDefault().Password;

                if (!DFS.Consumer.Security.UserManager.IsEmail(user.Email))

                    continue;

                var fullName = ContainsChinese(user.Surname + user.FirstName)

                    ? user.Surname + user.FirstName

                    : user.FirstName + " " + user.Surname;

                builder.AppendLine(string.Format(@"""{0}"",""{1}"",""{2}"",""{3}"",""{4}"",""{5}"",""{6}"",""{7}"",""{8}"",""{9}"",""{10}"",""{11}"",""{12}"",""{13}"",""{14}"",""{15}"",""{16}"",""{17}"",""{18}"",""{19}"",""{20}"",""{21}"",""{22}"",""{23}"",""{24}"",""{25}"",""{26}"",""{27}"",""{28}"",""{29}"",""{30}"",""{31}"",""{32}"",""{33}""",

                    user.AccountName,

                    password,//DFSConsumer_CoreLive].[dbo].[aspnet_Membership]  根据ID可以获取

                    passwordSalt,

                    user.UserTitle.Replace("\"", ""),

                    user.FirstName.Replace("\"", ""),

                    user.Surname.Replace("\"", ""),

                    user.Country.Replace("\"", ""),

                    user.Email.Replace("\"", ""),

                    user.Gender.Replace("\"", ""),

                    user.Address.Replace("\"", ""),

                    user.PrimaryAreaCode.Replace("\"", ""),//"Primary Area Code",

                    user.PrimaryContactNumber.Replace("\"", ""),

                    user.SecondaryAreaCode.Replace("\"", ""), //"Secondary Area Code",

                    user.SecondaryContactNumber.Replace("\"", ""),

                    user.AgeRange.Replace("\"", ""),

                    user.PreferredLanguage.Replace("\"", ""),

                    user.SocialType.Replace("\"", ""),

                    user.SocialID.Replace("\"", ""),

                    user.ReceiveNewsletter.Replace("\"", ""),//"Receive Newsletter",

                    user.RecMemberUpdate.Replace("\"", ""),//"Receive Member Updates",

                    user.PreferredDFSLocation.Replace("\"", ""), //"Preferred DFS Location",

                    user.RegLocation.Replace("\"", ""),

                    user.RegLanguage.Replace("\"", ""),

                    user.ID.Replace("\"", ""),

                    user.SocialEmail.Replace("\"", ""),

                    list_Active.Where(o => o.Email == user.Email).FirstOrDefault()!=null?list_Active.Where(o => o.Email == user.Email).FirstOrDefault().LoyalTNo:"",//user.LoyalTNumber.Replace("\"", ""),

                    list_Active.Where(o => o.Email == user.Email).Count() >  ? "Yes" : "No",//user.Email).FirstOrDefault().Email,//Count()>0  ? "Yes" : "No",//"Active Or Not",// [DFSConsumer_DFS].[dbo].[CRMActivate]

                    user.RegisterDate,

                    user.LastLoginDate,

                    user.FirstNameonPassport.Replace("\"", ""),//"First Name On Passport",

                    user.LastNameonPassport.Replace("\"", ""),//"Last Name On Passport",

                    user.PassportNumber.Replace("\"", ""),//"assport Number",

                    user.DateOfBirth.Replace("\"", ""),//"Date Of Birth",

                    user.PreferredMethodofContact.Replace("\"", "")));//"Prefered Method Of Contact"));

                progressCount++;

            }

            MyLog("创建表格用时：" + watch_sql.Elapsed + "\r\n共：" + progressCount + "条");

            Stopwatch watch_io = new Stopwatch();

            watch_io.Start();

            using (StreamWriter streamWriter = new StreamWriter(WebConfigurationManager.AppSettings["ExpUserData"] + "DFS_User_Accounts.csv", false, Encoding.GetEncoding("UTF-8"))) //GB2312

            {

                streamWriter.Write(builder.ToString());

            }

            MyLog("写入流用时：" + watch_io.Elapsed + "\n");

            return true;

        }

        #region tool

        private static bool ContainsChinese(string src)

        {

            var reg = new System.Text.RegularExpressions.Regex(@"[\u4e00-\u9fbf]{1,}");

            return reg.IsMatch(src);

        }

        private List<MemberShip> GetListMemberShip()

        {

            List<MemberShip> list_mUser = new List<MemberShip>();

            var tb_mUser = DFS.Consumer.DataLayer.SqlHelper.CreateInstance("corelive").RunSelectQuery(new SqlCommand("SELECT * FROM dbo.aspnet_Membership"));

            //var list_Active = SqlHelper.CreateInstance("dfs").RunDynamicList("SELECT [Email] FROM [dbo].[CRMActivate]");

            //foreach (var item in lis_Active)

            //{

            //    MyLog(item.Email);

            //}

            foreach (DataRow dr in tb_mUser.Rows)

            {

                list_mUser.Add(new MemberShip

                {

                    Password = dr["Password"].ToString(),

                    UserId = string.IsNullOrEmpty(dr["UserId"].ToString()) ? "" : dr["UserId"].ToString(),

                    PasswordSalt = dr["PasswordSalt"].ToString()

                    //ActiveOrNot=list_Active.Contains("")?"":""

                });

                //MyLog(dr["Password"].ToString() + " | " + dr["UserId"].ToString() + " | " + dr["PasswordSalt"].ToString());

            }

            return list_mUser;

        }

        /// <summary>

        /// 获取用户列表 分页

        /// </summary>

        /// <param name="pageSize"></param>

        /// <param name="pageIndex"></param>

        /// <returns></returns>

        private List<UserInfo> GetUserList(int pageSize, int pageIndex)

        {

            var userInfoList = new List<UserInfo>();

            Stopwatch watch1 = new Stopwatch();

            watch1.Start();

            var users = Sitecore.Security.Accounts.RolesInRolesManager.GetUsersInRole(Sitecore.Security.Accounts.Role.FromName("dfs\\Business User"), false);

            users = pageSize >  ? users.Take(pageSize) : users;

            MyLog("Sitecore查询用时：" + watch1.Elapsed + "\n");

            Stopwatch watch2 = new Stopwatch();

            watch2.Start();

            var businessUserRole = DFS.Consumer.Security.UserRoles.BusinessUserRole;

            userInfoList = businessUserRole == null || users == null

                ? new List<UserInfo>()

                : (from user in users

                   let membershipUser = System.Web.Security.Membership.GetUser(user.Profile.UserName)

                   where membershipUser != null && !membershipUser.IsLockedOut

                   where !string.IsNullOrEmpty(user.Profile.UserName)

                       && !string.IsNullOrEmpty(user.Profile.Email)

                       && user.Profile.Comment != "Disabled"

                   select UserInfo.Get(user)).ToList();

            MyLog("linq查询用时：" + watch2.Elapsed + "\n");

            return userInfoList;

        }

        /// <summary>

        /// 写日志

        /// </summary>

        /// <param name="msg"></param>

        private void MyLog(string msg)

        {

            //using (FileStream fs = new FileStream("c:/test/log.txt", FileMode.Create, FileAccess.Write))

            //{

            //    //string msg = "总用时：" + watch.Elapsed + "\n";

            //    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(msg);

            //    fs.Write(buffer, 0, buffer.Length);

            //}

            try

            {

                using (FileStream fs = new FileStream(WebConfigurationManager.AppSettings["ExpUserData"] + "log.txt", FileMode.Append, FileAccess.Write))

                {

                    msg = "\r\n" + System.DateTime.Now.ToString() + ":\r\n" + msg;

                    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(msg);

                    fs.Write(buffer, , buffer.Length);

                }

            }

            catch (Exception e)

            {

                MyLog(e.Message.ToString());

            }

        }

        #endregion

        public bool IsReusable

        {

            get

            {

                return false;

            }

        }

    }

}

                using (FileStream fs = new FileStream(ConfigurationManager.AppSettings["LogDirectory"] + DateTime.Now.ToString("yyyy-MM-dd") + "log.txt", FileMode.Append, FileAccess.Write))

                {

                    //msg = "\r\n" + System.DateTime.Now.ToString() + ":\r\n" + msg;

                    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(message);

                    fs.Write(buffer, , buffer.Length);

                }

 <add key="LogDirectory" value="E:\inetpub\wwwroot\authoring1.dfs.com\Data\ServiceLog\Flight\"/>

Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="DFS.Consumer.Cms.Sitecore_Modules.Shell.ExpUsers.Default" %>

<!DOCTYPE html>

<html lang="en">

<head>

    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <meta name="viewport" content="width=device-width, initial-scale=1">

    <meta name="description" content="">

    <meta name="author" content="">

    <link rel="icon" href="Resources/DFS-favicon.ico">

    <title>User Extraction</title>

    <!-- Bootstrap core CSS -->

    <link href="./Resources/bootstrap.min.css" rel="stylesheet">

    <!-- Custom styles for this template -->

    <link href="./Resources/dashboard.css" rel="stylesheet">

    <!-- Just for debugging purposes. Don't actually copy these 2 lines! -->

    <!--[if lt IE ]><script src="../../assets/js/ie8-responsive-file-warning.js"></script><![endif]-->

    <script src="./Resources/ie-emulation-modes-warning.js"></script>

    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->

    <!--[if lt IE ]>

      <script src="http://cdn.bootcss.com/html5shiv/3.7.0/html5shiv.js"></script>

      <script src="http://cdn.bootcss.com/respond.js/1.4.2/respond.min.js"></script>

    <![endif]-->

</head>

<body>

    <nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">

        <div class="container-fluid">

            <div class="navbar-header">

                <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">

                    <span class="sr-only">User Extraction</span>

                    <span class="icon-bar"></span>

                    <span class="icon-bar"></span>

                    <span class="icon-bar"></span>

                </button>

                <a class="navbar-brand" href="JavaScript:;">User Extraction</a>

            </div>

            <%--            <div id="navbar" class="navbar-collapse collapse">

                <ul class="nav navbar-nav navbar-right">

                    <li><a href="JavaScript:;">Dashboard</a></li>

                    <li><a href="JavaScript:;">Settings</a></li>

                    <li><a href="JavaScript:;">Profile</a></li>

                    <li><a href="JavaScript:;">Help</a></li>

                </ul>

                <form class="navbar-form navbar-right">

                    <input type="text" class="form-control" placeholder="Search...">

                </form>

            </div>--%>

        </div>

    </nav>

    <div class="container-fluid">

        <div class="row">

            <div class="col-sm-3 col-md-2 sidebar">

                <ul class="nav nav-sidebar">

                    <li class="active"><a href="JavaScript:;">Export Users</a></li>

                    <!--<li><a href="http://v3.bootcss.com/examples/dashboard/#">Reports</a></li>

            <li><a href="http://v3.bootcss.com/examples/dashboard/#">Analytics</a></li>

            <li><a href="http://v3.bootcss.com/examples/dashboard/#">Export</a></li>-->

                </ul>

            </div>

            <div class="col-sm-9 col-sm-offset-3 col-md-10 col-md-offset-2 main">

                <%-- <form id="form2" runat="server">--%>

                <button class="btn btn-primary" id="expcsv">Export To CSV</button>

                <button class="btn btn-primary" id="downloadcsv">Download CSV</button>

                <%--                <button class="btn btn-primary" id="expdb">Export To DataBase</button>

                <button class="btn btn-danger" id="cleardb">Clear DataBase</button>--%>

                <%--<asp:Button ID="ButtonDownloadCsv" runat="server" Text="Export To CSV" OnClick="ButtonDownloadCsv_OnClick" CssClass="btn btn-primary" />

                    <asp:Button ID="ButtonDownloadDB" runat="server" Text="Export To DataBase" OnClick="ButtonDownloadDB_OnClick" CssClass="btn btn-primary" />

                    <asp:Button ID="ClearDB" runat="server" Text="Clear DataBase" OnClick="ClearDB_OnClick" CssClass="btn btn-danger" /><br />--%>

                <br />

                <%--                Export Quantity( or not  input is all):--%>

                <input id="num" placeholder="Number" class="form-control" style="display: none" value="" />

                <%--<asp:TextBox ID="TextBox1" runat="server" CssClass="form-control"></asp:TextBox>--%>

                <br />

                <%--<p style="color: red">View the data path C:\inetpub\wwwroot\DFS\Data\UserExp\</p>--%>

                <div>

                    <h3>Export the progress:</h3>

                    <%--                    <asp:Label ID="progress" runat="server" Text=""></asp:Label>

                    <p id=""></p>--%>

                    <div id="proinfo"></div>

                </div>

                <div style="display: none" class="table-responsive">

                    <table class="table table-striped">

                        <thead>

                            <tr>

                                <th>Account Name</th>

                                <th>UserTitle</th>

                                <th>FirstName</th>

                                <th>Surname</th>

                                <th>Country</th>

                            </tr>

                        </thead>

                        <tbody>

                            <%--                            <%foreach (var item in UserInfoList10)

                              {

                            %>

                            <tr>

                                <td><%=item.AccountName %></td>

                                <td><%=item.UserTitle %></td>

                                <td><%=item.FirstName %></td>

                                <td><%=item.Surname %></td>

                                <td><%=item.Country %></td>

                            </tr>

                            <%} %>--%>

                        </tbody>

                    </table>

                    <%--                    总条数：<%=UserCount %>--%>

                </div>

                <%--</form>--%>

            </div>

        </div>

    </div>

    <!-- Bootstrap core JavaScript

    ================================================== -->

    <!-- Placed at the end of the document so the pages load faster -->

    <script src="./Resources/jquery.min.js"></script>

    <script src="./Resources/bootstrap.min.js"></script>

    <script src="./Resources/docs.min.js"></script>

    <!-- IE10 viewport hack for Surface/desktop Windows  bug -->

    <script src="./Resources/ie10-viewport-bug-workaround.js"></script>

    <div id="global-zeroclipboard-html-bridge" class="global-zeroclipboard-container" title="" style="position: absolute; left: 0px; top: -9999px; width: 15px; height: 15px; z-index: 999999999;" data-original-title="Copy to clipboard">

        <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" id="global-zeroclipboard-flash-bridge" width="100%" height="100%">

            <param name="movie" value="/assets/flash/ZeroClipboard.swf?noCache=1479180476023">

            <param name="allowScriptAccess" value="sameDomain">

            <param name="scale" value="exactfit">

            <param name="loop" value="false">

            <param name="menu" value="false">

            <param name="quality" value="best">

            <param name="bgcolor" value="#ffffff">

            <param name="wmode" value="transparent">

            <param name="flashvars" value="trustedOrigins=v3.bootcss.com%2C%2F%2Fv3.bootcss.com%2Chttp%3A%2F%2Fv3.bootcss.com">

            <embed src="/assets/flash/ZeroClipboard.swf?noCache=1479180476023" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="100%" height="100%" name="global-zeroclipboard-flash-bridge" allowscriptaccess="sameDomain" allowfullscreen="false" type="application/x-shockwave-flash" wmode="transparent" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="trustedOrigins=v3.bootcss.com%2C%2F%2Fv3.bootcss.com%2Chttp%3A%2F%2Fv3.bootcss.com" scale="exactfit">

        </object>

    </div>

    <svg xmlns="http://www.w3.org/2000/svg" width="" height="" viewBox="0 0 200 200" preserveAspectRatio="none" style="visibility: hidden; position: absolute; top: -100%; left: -100%;">

        <defs></defs><text x="" y="" style="font-weight: bold; font-size: 10pt; font-family: Arial, Helvetica, Open Sans, sans-serif; dominant-baseline: middle">200x200</text>

    </svg>

    <script type="text/javascript">

        //下载csv download

        $('#downloadcsv').click(function () {

            //location.href = 'Export.ashx?tab=download'

            $.post("Export.ashx", { tab: "downloadstatus" }, function (result) {

                if (result != null && result != "" && result != undefined) {

                    var rejson = eval('(' + result + ')');

                    if (rejson.status == ) {

                        location.href = 'Export.ashx?tab=download';

                        //window.clearInterval(intv);

                    } else {

                        alert(rejson.msg);

                    }

                } else {

                    location.href = 'Export.ashx?tab=download';

                }

            });

            // $("#proinfo").html(getNowFormatDate() + infoHtml);

        });

        var temp = ;

        //导出CSV

        $('#expcsv').click(function () {

            $.post("Export.ashx", { tab: "getstatus" }, function (result) {

                if (result != null && result != "" && result != undefined) {

                    var rejson = eval('(' + result + ')');

                    if (rejson.status == ) {

                        //window.clearInterval(intv);

                        alert(rejson.msg);

                    } else {

                        startExp();

                    }

                } else {

                    startExp();

                }

            });

            //$("#proinfo").html("<p>" + getNowFormatDate() + ":Started");

        });

        function startExp() {

            alert("start");//Started'

            $("#expcsv").attr("disabled", true);

            $("#downloadcsv").attr("disabled", true);

            setintv();

            $.post("Export.ashx", { tab: "expcsv", num: $("#num").val() }, function (result) {

                var rejson = eval('(' + result + ')');

                $("#expcsv").attr("disabled", false);

                $("#downloadcsv").attr("disabled", false);

                if (rejson.status != ) {

                    window.clearInterval(intv);

                    alert(rejson.msg);

                    return;

                }

            });

            $("#proinfo").html("<p>" + getNowFormatDate() + ":Started");

        }

        ////导出db

        //$('#expdb').click(function () {

        //    //alert("start");

        //    //$.post("Export.ashx", { tab: "expdb" }, function (result) {

        //    alert("start");//Started'

        //    //$("#proinfo").html("<p>" + getNowFormatDate() + ":Started");

        //    $.post("Export.ashx", { tab: "expdb", num: $("#num").val() }, function (result) {

        //        var rejson = eval('(' + result + ')');

        //        if (rejson.status == 200) {

        //            //alert(rejson.msg);

        //        }

        //    });

        //    setintv();

        //    $("#proinfo").html("<p>" + getNowFormatDate() + ":Started");

        //});

        ////清空数据库

        //$('#cleardb').click(function () {

        //    if (confirm("Sure to delete?")) {

        //        $.post("Export.ashx", { tab: "del" }, function (result) {

        //            var rejson = eval('(' + result + ')');

        //            if (rejson.status == 200) {

        //                alert(rejson.msg);

        //            }

        //        });

        //    }

        //});

        var infoHtml = "<p>" + getNowFormatDate() + ":Started";

        var tempCount = ;//已导出数量

        var counter = ;//循环秒数

        //var completed = 0;//表及输入完成次数

        function setintv() {

            var intv = setInterval(function (event) {

                $.post("Export.ashx", { tab: "getnum", num: $("#num").val() }, function (result) {

                    if (result != null && result != "" && result != undefined) {

                        var rejson = eval('(' + result + ')'); //eval(result);

                        switch (rejson.status) {

                            case :

                                if (tempCount != rejson.msg && rejson.msg > ) {

                                    infoHtml = "<p>" + getNowFormatDate() + ":Exported  " + rejson.msg + " data</p>" + $("#proinfo").html();

                                    tempCount = rejson.msg;

                                }

                                break;

                            case :

                                if (counter >= ) {

                                    infoHtml = "<p>" + getNowFormatDate() + ":Data being queried, please wait a moment.</p>" + $("#proinfo").html();

                                    counter = ;

                                } else {

                                    counter++;

                                }

                                break

                            case :

                                //alert("进入700");

                                //if (completed == 0) {

                                infoHtml = "<p>" + getNowFormatDate() + ":Completed！</p>" + $("#proinfo").html();

                                //completed++;

                                window.clearInterval(intv);

                                // }

                                break;

                        }

                        $("#proinfo").html(infoHtml);

                    }

                });

            }, );

        }

        function getNowFormatDate() {

            var date = new Date();

            var seperator1 = "-";

            var seperator2 = ":";

            var month = date.getMonth() + ;

            var strDate = date.getDate();

            if (month >=  && month <= ) {

                month = "" + month;

            }

            if (strDate >=  && strDate <= ) {

                strDate = "" + strDate;

            }

            var currentdate = date.getFullYear() + seperator1 + month + seperator1 + strDate

                    + " " + date.getHours() + seperator2 + date.getMinutes()

                    + seperator2 + date.getSeconds();

            return currentdate;

        }

    </script>

</body>

</html>

调试写日志

            //bool append = true;

            System.IO.TextWriter textWriter = new System.IO.StreamWriter("c://test002.log",true);

            textWriter.Write("\n这是测试写文件002");

            textWriter.Close();

读取文件

        public void MyLog(string msg)

        {

            System.IO.TextWriter textWriter = new System.IO.StreamWriter("mylog.log", true);//这个不是网站根目录，可能是运行时根目录

            msg = "\r\n" + System.DateTime.Now.ToString() + ":\r\n" + msg;

            textWriter.Write(msg + "\nm");

            textWriter.Close();

        }

            System.IO.StreamReader reader = new System.IO.StreamReader("c://test002.log");

            string contents = reader.ReadToEnd();

            reader.Close();

            Console.Write(contents);

            Console.Read();

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