c/s模式 (C#)下Ftp的多文件上传及其上传进度

因为项目要求，制作的一个多文件上传，并显示进度条一段代码(vs2005环境)。

(只为粗略的实现，代码并不规范)

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);         }     }