ftp技术多线程上传图片

ljjhw320 2011-07-23 07:28:40

我现在想做一个winfrom ,想利用ftp技术进行多线程的上传图片，而且还有进度条显示！请哪个大侠能指点一下，给个例子，谢谢!

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zhguojiang 2012-10-30

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不错不错不错不错

绿色夹克衫 2011-07-25

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比如用webclient



        WebClient wc = new WebClient();

        byte[] data = new byte[10];

        wc.UploadDataCompleted += new UploadDataCompletedEventHandler(wc_UploadDataCompleted);

        wc.UploadDataAsync(new Uri("http://www.sina.com.cn"), data);

[Quote=引用 4 楼 ljjhw320 的回复:]

该怎么弄了，我没有多接触过异步的东西！引用 2 楼 litaoye 的回复:
没必要搞这么复杂，用1个线程作异步就可以。
[/Quote]

mjp1234airen4385 2011-07-25

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ftp上传图片，你做完了吗？
做完了，放在一个线程里运行，就好了。

dazhabai 2011-07-25

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bw = new BackgroundWorker();

                                            bw.WorkerReportsProgress = true;

                                            bw.DoWork += new DoWorkEventHandler(bw_DoWork);

                                            bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bw_RunWorkerCompleted);

                                            bw.ProgressChanged += new ProgressChangedEventHandler(bw_ProgressChanged);

                                            bw.RunWorkerAsync(temp);

private void bw_DoWork(object sender, DoWorkEventArgs e)

        {

            ftp 下载

        }

dazhabai 2011-07-25

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backgroundwork

confidenceyu 2011-07-25

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这个不错

ljjhw320 2011-07-25

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能说的具体一点吗？？谢谢了！[Quote=引用楼主 ljjhw320 的回复:]
我现在想做一个winfrom ,想利用ftp技术进行多线程的上传图片，而且还有进度条显示！请哪个大侠能指点一下，给个例子，谢谢!
[/Quote]

ljjhw320 2011-07-25

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该怎么弄了，我没有多接触过异步的东西！[Quote=引用 2 楼 litaoye 的回复:]
没必要搞这么复杂，用1个线程作异步就可以。
[/Quote]

ljjhw320 2011-07-25

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上传图片的方法我已经贴上去了，但是怎么可以放得线程里？？我有点不明白啊！[Quote=引用 8 楼 dazhabai 的回复:]
C# code

bw = new BackgroundWorker();
bw.WorkerReportsProgress = true;
bw.DoWork += new DoWorkEventHandler(b……
[/Quote]

ljjhw320 2011-07-25

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这是我上传图片的方法，大家看看怎么弄可以？？
/// <summary>
/// 上传文件到FTP服务器上【注意：当文件存在时，覆盖原来的文件】
/// </summary>
/// <param name="fileName">本地文件路径（例如：d:\ftp_upload1.txt）</param>
/// <param name="uploadUrl">FTP服务器路径（例如：ftp://192.168.10.176/ftp_upload.txt ）</param>
/// <param name="userName">用户名</param>
/// <param name="password">密码</param>
/// <param name="strResult">执行结果</param>
/// <returns>0：成功； 1：失败</returns>
public int UploadFun(string fileName, string uploadUrl, string userName, string password, ref string strResult)
{
Stream requestStream = null;
FileStream fileStream = null;
FtpWebResponse uploadResponse = null;
try
{
FtpWebRequest uploadRequest = (FtpWebRequest)WebRequest.Create(uploadUrl);
uploadRequest.Method = WebRequestMethods.Ftp.UploadFile;

uploadRequest.Proxy = null;
uploadRequest.KeepAlive = true;
uploadRequest.Method = WebRequestMethods.Ftp.UploadFile;
uploadRequest.UsePassive = true;
NetworkCredential nc = new NetworkCredential();
nc.UserName = userName;
nc.Password = password;

uploadRequest.Credentials = nc; //修改getCredential();错误2

requestStream = uploadRequest.GetRequestStream();
fileStream = File.Open(fileName, FileMode.Open);

byte[] buffer = new byte[1024];
int bytesRead;
while (true)
{
bytesRead = fileStream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
break;
requestStream.Write(buffer, 0, bytesRead);
}
requestStream.Close();

uploadResponse = (FtpWebResponse)uploadRequest.GetResponse();
if (uploadResponse.StatusCode == FtpStatusCode.ClosingData)
{
strResult = "上传成功,文件:" + fileName;
return 0;
}
else
{
strResult = "上传文件失败,code=" + uploadResponse.StatusCode.ToString();
}

}
catch (UriFormatException ex)
{
strResult = ex.Message;
}
catch (IOException ex)
{
strResult = ex.Message;
}
catch (WebException ex)
{
strResult = ex.Message;
}
finally
{
if (uploadResponse != null)
uploadResponse.Close();
if (fileStream != null)
fileStream.Close();
if (requestStream != null)
requestStream.Close();
}

return 1;
}