ZIP壓縮指定路徑

using Common;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Quartz;
using Quartz.Impl;
using StarbucksMessageService.Common; 
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Topshelf; 
using System.IO;
using ICSharpCode.SharpZipLib.Zip;
using System.Web;
using ICSharpCode.SharpZipLib.Checksums; 
namespace StarbucksMessageService
{
    class Program
    {
        static void Main(string[] args)
        {
            DAL dal = new DAL();
            service ser=new service();
            Console.WriteLine("輸入須要導出的分類code");
            //分類Code
            string code = Console.ReadLine();
            if (code == "1")
            {
                code = "491dc61d999a414f86a4fe16933ce1df";
            }
            DataTable dt = dal.getDataSetfile(code).Tables[0];
            Console.WriteLine("當前文件總數："+dt.Rows.Count);
            ////導出數量
            //int classifyCount = int.Parse(Console.ReadLine());
            Console.WriteLine("按多少份分別導出？（輸入0則導出所有）");
            //部分區間
            int part = int.Parse(Console.ReadLine());
            //獲取數據庫數據

          
            //總數
            int DtCount = dt.Rows.Count;
            //須要分的次數
              int times =0;
            if (part != 0)
            {
                  times = (DtCount + part - 1) / part;
            }
            string ZipedFile = "/測試ZIP.zip";// "C:\\ExportFolder\\測試ZIP.zip";
            string path= Path.GetFullPath("../ExportFolder");
            string ZipName = string.Empty;
            var crc = new Crc32();
            MemoryStream ms = new MemoryStream();
            Encoding gb2312 = Encoding.GetEncoding("gb2312"); //對方英文服務器   進行轉碼
            ICSharpCode.SharpZipLib.Zip.ZipConstants.DefaultCodePage = gb2312.CodePage;
            ZipOutputStream zos = null;
            FileStream fs = null;
            //  byte[] buffer = null;
            System.IO.BinaryReader br = null;

            try
            {

                if (dt.Rows.Count > 0)
                {
                    ////測試數據
                    //DataRow dr1 = dt.NewRow();
                    //for (int d = 0; d < 5000; d++)
                    //{
                    //    dr1["number"] = dt.Rows[5][0].ToString();
                    //    dr1["Emp_Code"] = dt.Rows[5][1].ToString();
                    //    dr1["applicantDeptName"] = dt.Rows[5][2].ToString();
                    //    dr1["serialNumber"] = dt.Rows[5][3].ToString();
                    //    dr1["fileName"] = dt.Rows[5][4].ToString();
                    //    dr1["filePath"] = dt.Rows[5][5].ToString();
                    //    dt.Rows.Add(dr1.ItemArray);

                    //}
                  
                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        string title = dt.Rows[i]["fileName"].ToString();
                        string houzhui = Path.GetExtension(title);
                        title = Path.GetFileNameWithoutExtension(title);
                        //上海咖啡店_s57155_SJ201904160001(1).jpg
                        string NewName = dt.Rows[i]["applicantDeptName"].ToString() + "_" + dt.Rows[i]["Emp_Code"].ToString() + "_" + dt.Rows[i]["serialNumber"].ToString() + "(" + (i + 1) + ")" + houzhui;
                        dt.Rows[i]["fileName"] = NewName;
                    }

                    Logger.Log.Debug("datable總數" + dt.Rows.Count);
                   
                    //part 等於0則直接導出所有
                    if (part == 0)
                    {
                        //判斷文件是否存在
                        if (!Directory.Exists(path))
                        {
                            Directory.CreateDirectory(path);
                        }
                        //判斷文件是否存在
                        if (File.Exists((path + ZipedFile)))
                        {
                            File.Delete((path + ZipedFile));
                        }
                        zos = new ZipOutputStream(File.Create((path + ZipedFile)));
                        int row = 1;
                        int a = 1;
                        //List<USP_getZIPlist> list = service.ListConvertToModel(dt);
                        ////重命名  店名+店號+單號+流水號
                        //Parallel.ForEach(list, (i) =>
                        //{
                        //    try
                        //    {
                        //        i
                        //        Logger.Log.Debug(i["filePath"].ToString());
                        //        _error = i["fileName"].ToString();
                        //        fs = new FileStream(dr["filePath"].ToString(), System.IO.FileMode.Open);//文件地址、
                        //        // fs = new FileStream(filepath, System.IO.FileMode.Open);//文件地址
                        //        br = new BinaryReader((Stream)fs);
                        //        int size = 1024;
                        //        byte[] buffer = br.ReadBytes(size);
                        //        fs.Seek(size * (row - 1), System.IO.SeekOrigin.Begin);
                        //        ZipEntry entry = new ZipEntry(dr["fileName"].ToString());//文件名
                        //        //ZipEntry entry = new ZipEntry(filename);//文件名
                        //        zos.PutNextEntry(entry);//UTF-8 
                        //        int extractCount = 0;
                        //        while (true)
                        //        {
                        //            size = fs.Read(buffer, 0, buffer.Length);
                        //            if (size > 0)
                        //            {

                        //                zos.Write(buffer, 0, size);
                        //                zos.Flush();
                        //            }
                        //            else
                        //            {
                        //                break;
                        //            }
                        //            extractCount += size;
                        //        }
                        //        // zos.Write(buffer, 0, buffer.Length);
                        //    }
                        //    catch (Exception ex)
                        //    {
                        //        throw;
                        //    }
                        //    finally
                        //    {
                        //        if (fs != null) fs.Close();
                        //    }
                        //    Console.WriteLine(a++);
                        //    //row++;

                        //});
                        foreach (DataRow dr in dt.Rows)
                        {
                            try
                            {
                                Logger.Log.Debug(dr["filePath"].ToString());
                                _error = dr["fileName"].ToString();
                                if (File.Exists(dr["filePath"].ToString()))
                                {
                                    fs = new FileStream(dr["filePath"].ToString(), System.IO.FileMode.Open);//文件地址、

                                    // fs = new FileStream(filepath, System.IO.FileMode.Open);//文件地址
                                    br = new BinaryReader((Stream)fs);
                                    int size = 1024;
                                    byte[] buffer = br.ReadBytes(size);
                                    fs.Seek(size * (row - 1), System.IO.SeekOrigin.Begin);
                                    ZipEntry entry = new ZipEntry(dr["fileName"].ToString());//文件名
                                    //ZipEntry entry = new ZipEntry(filename);//文件名
                                    zos.PutNextEntry(entry);//UTF-8 
                                    int extractCount = 0;
                                    while (true)
                                    {
                                        size = fs.Read(buffer, 0, buffer.Length);
                                        if (size > 0)
                                        {

                                            zos.Write(buffer, 0, size);
                                            zos.Flush();
                                        }
                                        else
                                        {
                                            break;
                                        }
                                        extractCount += size;
                                    }
                                }
                                else
                                {
                                    Console.WriteLine("單號：" + dr["serialNumber"].ToString() + "，文件:" + dr["filePath"].ToString() + ",不存在");
                                }
                               // zos.Write(buffer, 0, buffer.Length);
                            }
                            catch (Exception ex)
                            {
                                throw;
                            }
                            finally
                            {
                                if (fs != null) fs.Close();
                            }
                            Console.WriteLine("序號："+a++);
                            //row++;
                        }
                         
                        if (zos != null) zos.Close();
                        
                        //HttpContext.Current.Response.ContentType = "application/octet-stream";
                        //HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;  filename=" + HttpUtility.UrlEncode(ZipName + ".zip", System.Text.Encoding.UTF8));
                        //HttpContext.Current.Response.AddHeader("Content-Length", ms.ToArray().Length.ToString());
                        //HttpContext.Current.Response.BinaryWrite(ms.ToArray());
                        //HttpContext.Current.Response.Flush();
                        // HttpContext.Current.Response.End();
                    }
                    else
                    { 
                        int begin=0;
                        int end=part;
                        int row = 1;
                        int a = 1;
                        //根據次數分別導出ZIP
                        for (int item = 1; item <= times; item++)
                        { 
                            ZipedFile = "/測試ZIP(" + item + ").zip";// "C:\\ExportFolder\\測試ZIP(" + item + ").zip";
                            //判斷文件是否存在
                            if (!Directory.Exists(path))
                            {
                                Directory.CreateDirectory(path);
                            }
                            //判斷文件是否存在
                            if (File.Exists((path + ZipedFile)))
                            {
                                File.Delete((path + ZipedFile));
                            }
                            zos = new ZipOutputStream(File.Create((path + ZipedFile))); 
                            //每次循環根據固定份數打包 part
                            DataRow [] dRow = dt.Select("number>" + begin + " and number<=" + end + "");
                            foreach (DataRow dr in dRow)
                            {
                                try
                                {
                                    Logger.Log.Debug(dr["filePath"].ToString());
                                    _error = dr["fileName"].ToString();
                                    if (File.Exists(dr["filePath"].ToString()))
                                    {
                                        fs = new FileStream(dr["filePath"].ToString(), System.IO.FileMode.Open);//文件地址、
                                        // fs = new FileStream(filepath, System.IO.FileMode.Open);//文件地址
                                        br = new BinaryReader((Stream)fs);
                                        int size = 1024;
                                        byte[] buffer = br.ReadBytes(size);
                                        fs.Seek(size * (row - 1), System.IO.SeekOrigin.Begin);
                                        //byte[] buffer = br.ReadBytes((Int32)fs.Length);
                                        ZipEntry entry = new ZipEntry(dr["fileName"].ToString());//文件名
                                        //ZipEntry entry = new ZipEntry(filename);//文件名
                                        zos.PutNextEntry(entry);//UTF-8 
                                        zos.Write(buffer, 0, buffer.Length);
                                    }
                                    else
                                    {
                                        Console.WriteLine("單號：" + dr["serialNumber"].ToString() + "，文件:" + dr["filePath"].ToString() + ",不存在");
                                    }
                                }

                                catch (Exception ex)
                                {
                                    Console.WriteLine("ZIP打包錯誤" + ex);
                                }
                                finally
                                {
                                    if (fs != null) fs.Close();
                                }
                                Console.WriteLine("序號：" + a++);
                            }
                          
                            if (zos != null) zos.Close();
                            
                            //每次循環 加上份數
                            begin=begin+part;
                            end=end+part;
                            
                        }
                    }
                }

            }
            catch (Exception ex)
            {
                //  context.Response.Write("<script>alert('" + _error + "文件不存在或被另外一進程佔用,文件下載終止')</script>");
                Console.WriteLine("ZIP打包錯誤" + ex);

            }
            finally
            {

                if (zos != null) zos.Close();
                ms.Dispose();
            }
            Console.ReadKey();
        }

        public static string _error { get; set; }
    }
}