FTP下载文件问题，急！！！！

鬼五拾柒 2015-04-09 05:07:28

       

private void button3_Click(object sender, EventArgs e)

        {

            string KSSJ = dtpKSSJ.Value.ToString("yyyy-MM-dd");

            string SavePath = this.textBox1.Text;

            string ftpUrl = "";

            if (this.textBox1.Text.Trim() != "")

            {

                if (dataGridView1.Rows.Count > 0)

                {

                    for (int i = 0; i < dataGridView1.Rows.Count; i++)

                    {

                        if (bool.Parse(dataGridView1.Rows[i].Cells[9].Value.ToString()) == false)

                        {

                            string FileName = this.dataGridView1.Rows[i].Cells[0].Value.ToString();//获取FTP文件名

                            string FilePath1 = this.dataGridView1.Rows[i].Cells[4].Value.ToString();//获取FTP文件路径

                            string FilePath2 = FilePath1.Substring(0, FilePath1.Length - 1);

                            ftpUrl = FilePath2.Substring(1);

                            string Model_No = this.dataGridView1.Rows[i].Cells[5].Value.ToString();//获取型号

                            string Type_Work = this.dataGridView1.Rows[i].Cells[6].Value.ToString();//获取工种

                            int FileSize = Convert.ToInt32(this.dataGridView1.Rows[i].Cells[2].Value.ToString());

                            string path = string.Format(@"{0}\{1}\{2}\{3}\", SavePath, KSSJ, Model_No, Type_Work);

                            string url = "ftp://15.5.240.15/" + ftpUrl;

                            // DownLoad(FileName, ftpUrl, SavePath, KSSJ, Model_No, Type_Work);

                            Download(FileName, url, path,FileSize);

                            //MessageBox.Show("可以保存！");





                        }

                    }

                }

                else

                {

                    MessageBox.Show("没有指定数据！");

                }

            }

            else

            {

                MessageBox.Show("请指定存放目录！", "提示");

            }

        }



        /// <summary>

        /// 下载

        /// </summary>

        /// <param name="FileName"></param>

        /// <param name="ftpUrl"></param>

        /// <param name="path"></param>

        public void Download(string FileName, string ftpUrl, string path,int FileSize)

        {

            FtpWebRequest reqFTP;

            try

            {

                FileStream outputStream = new FileStream(path + "\\" + FileName, FileMode.Create);

                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftpUrl + FileName));

                reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;

                reqFTP.KeepAlive = false;

                reqFTP.UseBinary = true;

                reqFTP.Credentials = new NetworkCredential("bft1", "Aa149608");

                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();

                Stream ftpStream = response.GetResponseStream();

                long cl = response.ContentLength;

                int bufferSize = FileSize;

                int readCount;

                byte[] buffer = new byte[bufferSize];

                readCount = ftpStream.Read(buffer, 0, bufferSize);

                while (readCount > 0)

                {

                    outputStream.Write(buffer, 0, readCount);

                    readCount = ftpStream.Read(buffer, 0, bufferSize);

                }

                ftpStream.Close();

                outputStream.Close();

                response.Close();

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

        }