远程服务器上共享文件夹的上传与下载

环境配置

1.远程服务器上选择需要共享的文件夹，右键——属性——共享，设置为共享，并把只读去掉
详情可参考https://blog.youkuaiyun.com/btt2013/article/details/51142507

代码实现

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Diagnostics;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
 
            bool status = false;
 
            //连接共享文件夹
            status = connectState(@"\\192.168.2.144\Test2", "Admin", "123");
            if (status)
            {
                //共享文件夹的目录
                DirectoryInfo theFolder = new DirectoryInfo(@"\\192.168.2.144\Test2\");
                //获取保存文件的路径
                string PathName = theFolder.ToString();
                //执行方法
                Transport(@"D:\Test.txt", PathName, "4.txt");  //上传文件到另一台电脑的共享文件夹，需要设置共享文件夹的权限，共享文件夹不要设在桌面
                TransportRemoteToLocal(@"D:\Test2.txt", PathName, "2.txt");  //从另一电脑的共享文件夹下载文件到本机
            }
            else
            {
               
            }
            Console.ReadKey();
        }
 
        public static bool connectState(string path)
        {
            return connectState(path, "", "");
        }
        /// <summary>
        /// 连接远程共享文件夹
        /// </summary>
        /// <param name="path">远程共享文件夹的路径</param>
        /// <param name="userName">用户名</param>
        /// <param name="passWord">密码</param>
        /// <returns></returns>
        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 + " " + passWord + " /user:" + userName;
                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;
        }
 
        /// <summary>
        /// 向远程文件夹保存本地内容，或者从远程文件夹下载文件到本地
        /// </summary>
        /// <param name="src">要保存的文件的路径，如果保存文件到共享文件夹，这个路径就是本地文件路径如：@"D:\1.avi"</param>
        /// <param name="dst">保存文件的路径，不含名称及扩展名</param>
        /// <param name="fileName">保存文件的名称以及扩展名</param>
        public static void Transport(string src, string dst, string fileName)
        {
 
            FileStream inFileStream = new FileStream(src, FileMode.Open);
            if (!Directory.Exists(dst))
            {
                Directory.CreateDirectory(dst);
            }
            dst = dst + fileName;
 
            if (!File.Exists(dst))
            {
                FileStream outFileStream = new FileStream(dst, FileMode.Create, FileAccess.Write);
 
 
                byte[] buf = new byte[inFileStream.Length];
 
                int byteCount;
 
                while ((byteCount = inFileStream.Read(buf, 0, buf.Length)) > 0)
                {
 
                    outFileStream.Write(buf, 0, byteCount);
 
                }
 
                inFileStream.Flush();
 
                inFileStream.Close();
 
                outFileStream.Flush();
 
                outFileStream.Close();
            }
        }
 
        /// <summary>
        /// 从远程服务器下载文件到本地
        /// </summary>
        /// <param name="src">下载到本地后的文件路径，包含文件的扩展名</param>
        /// <param name="dst">远程服务器路径（共享文件夹路径）</param>
        /// <param name="fileName">远程服务器（共享文件夹）中的文件名称，包含扩展名</param>
        public static void TransportRemoteToLocal(string src, string dst, string fileName)   //src：下载到本地后的文件路径  dst：远程服务器路径 fileName:远程服务器dst路径下的文件名
        {
            if (!Directory.Exists(dst))
            {
                Directory.CreateDirectory(dst);
            }
            dst = dst + fileName;
            FileStream inFileStream = new FileStream(dst, FileMode.Open);    //远程服务器文件  此处假定远程服务器共享文件夹下确实包含本文件，否则程序报错
 
            FileStream outFileStream = new FileStream(src, FileMode.OpenOrCreate);   //从远程服务器下载到本地的文件
 
            byte[] buf = new byte[inFileStream.Length];
 
            int byteCount;
 
            while ((byteCount = inFileStream.Read(buf, 0, buf.Length)) > 0)
            {
 
                outFileStream.Write(buf, 0, byteCount);
 
            }
 
            inFileStream.Flush();
 
            inFileStream.Close();
 
            outFileStream.Flush();
 
            outFileStream.Close();
 
        }
 
    }
}