c/s(C#)下Ftp的多文件上传及其上传进度

当多个文件上传的时候，需要依次队列形式一个个上传，当上传某个文件的时候，锁定进程，上传完毕再开启锁。

在主类中的上传按钮事件代码: 

//获取openFileDialog控件选择的文件名数组(openFileDialog可多个文件选择)
        private void button1_Click(object sender, EventArgs e)
        {
            label1.Text = "";
            try
            {
                this.openFileDialog1.ShowDialog();
                path = this.openFileDialog1.FileNames;  //获取openFileDialog控件选择的文件名数组
                string strpath = "";
                for (int y = 0; y < path.Length; y++)
                {
                    strpath += path[y];
                }
                textBox1.Text = strpath;
            }
            catch
            {
                this.lbl_ftpStakt.Text = "请选择文件!";
            }
        }  //上传按钮事件
        private void button2_Click(object sender, EventArgs e)
        {
            this.lbl_ftpStakt.Visible = true;   //设置上传信息标签可见
            this.lbl_ftpStakt.Text = "连接服务器...";            
            
            try
            {  
                for (i = 0; i < path.Length; i++)
                {
                    filename = path[i].ToString();

                    //实例化事件类
                    myTest fo = new myTest(filename);
                    fo.startUpEvent+=new myTest.myUpEventsHandler(this.RunsOnWorkerThread); //注册事件
                    fo.mythreadStart(); //调用类的方法
                   
                    FileInfo p = new FileInfo(path[i].ToString());
                    uploadSQL(p.Name);  //上传到库
                }
                //label1.Text = "上传成功";
            }
            catch
            {
                string s="";
                for (int x = i; x < path.Length; x++)
                {
                    FileInfo file = new FileInfo(path[i].ToString());
                    s += file.Name + " ";
                }
                    this.lbl_ftpStakt.Text = "上传失败";
                MessageBox.Show(s.ToString()+" 上传失败","提示");
            }
        } //连接ftp上传
        public void RunsOnWorkerThread(string _filename)
        {
            //阻塞线程
            mt.WaitOne();
            Interlocked.Increment(ref flag);    //状态值+1

            this.lbl_ftpStakt.Text = "连接服务器中...";
            FileInfo fileInf = new FileInfo(_filename);
            FtpWebRequest reqFTP;
            // 根据uri创建FtpWebRequest对象 
            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://210.82.***.***/" + fileInf.Name));
            // ftp用户名和密码
            reqFTP.Credentials = new NetworkCredential("record", "files");
            // 默认为true，连接不会被关闭
            // 在一个命令之后被执行
            reqFTP.KeepAlive = false;
            // 指定执行什么命令
            reqFTP.Method = WebRequestMethods.Ftp.UploadFile;
            // 指定数据传输类型
            reqFTP.UseBinary = true;
            // 上传文件时通知服务器文件的大小
            reqFTP.ContentLength = fileInf.Length;
            //long _length = fileInf.Length;  /////////
            // 缓冲大小设置为2kb
            int buffLength = 2048;  ////
            byte[] buff = new byte[buffLength];
            int contentLen;
            // 打开一个文件流 (System.IO.FileStream) 去读上传的文件
            FileStream fs = fileInf.OpenRead();

 

try
            {
                 //  把上传的文件写入流
                Stream strm  =  reqFTP.GetRequestStream();
                 //  每次读文件流的2kb
                contentLen  =  fs.Read(buff,  0 , buffLength);
                 int  allbye  =  ( int )fileInf.Length;
                 int  startbye  =   0 ;
                 this .myProgressControl.Maximum  =  allbye;
                 this .myProgressControl.Minimum  =   0 ;
                 this .myProgressControl.Visible  =   true ;
                 this .lbl_ftpStakt.Visible  =   true ;
                 this .lbl_ftpStakt.Text  =   " 服务器连接中 " ;
                 //  流内容没有结束
                 while  (contentLen  !=   0 )
                {
                     //  把内容从file stream 写入 upload stream
                    strm.Write(buff,  0 , contentLen);
                    contentLen  =  fs.Read(buff,  0 , buffLength);
                    startbye  +=  contentLen;
                     this .lbl_ftpStakt.Text  =   " 已上传: "   +  ( int )(startbye  /   1024 )  +   " KB/ "   +   " 总长度: "   +  ( int )(allbye  /   1024 )  +   " KB "   +   "   "   +   "  文件名: "   +  fileInf.Name;
                    myProgressControl.Value  =  startbye;
                }
                 //  关闭两个流
                strm.Close();
                fs.Close();
                 this .myProgressControl.Visible  =   false ;
                 this .lbl_ftpStakt.Text  =   " 上传成功! " ;
            }
             catch  (Exception ex)
            {
                MessageBox.Show(ex.Message,  " Upload Error " );
            }
            Interlocked.Decrement( ref  flag);
            mt.ReleaseMutex(); // 释放线程
        } 

处理上传线程的委托事件类



///   <summary>
     ///  委托事件类
     ///   </summary>
     class  myTest
    {
         public   string  filename;
         public   delegate   void  myUpEventsHandler( string  _filename);
         public   event  myUpEventsHandler startUpEvent;

         public  myTest()
        {
        }

         ///   <summary>
         ///  
         ///   </summary>
         ///   <param name="_filename"> 上传的文件名 </param>
         public  myTest( string  _filename)
        {
             this .filename  =  _filename;
        }

         ///   <summary>
         ///  开始一个线程，执行事件
         ///   </summary>
         public   void  mythreadStart()
        {
            Thread thr  =   new  Thread( new  ThreadStart( this .mystart));
            thr.Start();
        }

         ///   <summary>
         ///  开始事件
         ///   </summary>
         public   void  mystart()
        {
            startUpEvent( this .filename);
        }
    }