fastDfs Code: https://code.google.com/p/fastdfs/

FastDfs_Client_DotNet:https://code.google.com/p/fastdfs/downloads/detail?name=FastDFS_Client_Dotnet.rar

FastDfs示例代码

初始化

List<IPEndPoint> trackerIPs = new List<IPEndPoint>();

IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("192.168.0.123"),22122);

trackerIPs.Add(endPoint);

ConnectionManager.Initialize(trackerIPs);

StorageNode node = FastDFSClient.GetStorageNode("group1");

获取文件信息

FDFSFileInfo fileInfo = FastDFSClient.GetFileInfo(node, fileName);

Console.WriteLine(string.Format("FileName:{0}", fileName));

Console.WriteLine(string.Format("FileSize:{0}", fileInfo.FileSize));

Console.WriteLine(string.Format("CreateTime:{0}", fileInfo.CreateTime));

Console.WriteLine(string.Format("Crc32:{0}", fileInfo.Crc32));

上传文件

byte[] buffer = FastDFSClient.DownloadFile(node, fileName, 0L, 0L);

string localName = @"D:\a.ppt";

if (fileInfo.FileSize >= 1024)//如果文件大小大于1KB  分次写入

{

    FileStream fs = new FileStream(localName, FileMode.OpenOrCreate, FileAccess.Write);

    //string name_ = LocalName.Substring(LocalName.LastIndexOf("\\") + 1, LocalName.Length - LocalName.LastIndexOf("\\") - 1);

    long offset = 0;

    long len = 1024;

    while (len > 0)

    {

        byte[] buffer = new byte[len];

        buffer = FastDFSClient.DownloadFile(node, fileName, offset, len);

        fs.Write(buffer, 0, int.Parse(len.ToString()));

        fs.Flush();

        // setrichtext(name_ + "已经下载：" + (offset / fileInfo.FileSize) + "%");

        offset = offset + len;

        len = (fileInfo.FileSize - offset) >= 1024 ? 1024 : (fileInfo.FileSize - offset);

    }

    fs.Close();

}

else//如果文件大小小小于1KB  直接写入文件

{

    byte[] buffer = new byte[fileInfo.FileSize];

    buffer = FastDFSClient.DownloadFile(node, fileName);

    FileStream fs = new FileStream(localName, FileMode.OpenOrCreate, FileAccess.Write);

    fs.Write(buffer, 0, buffer.Length);

    fs.Flush();

    fs.Close();

}

删除文件

FastDFSClient.RemoveFile("group1", fileName);

HTTP获取文件
1. Http流读取

string url = "http://aa.com/da/g5/M02/0D/16/rBEDik_nOJ0IAAAAAAA_cbJCY-UAACrRgMhVLEAAD-J352.jpg";

System.Net.HttpWebRequest req = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(url);

System.Net.HttpWebResponse res = (System.Net.HttpWebResponse)req.GetResponse();

 Image myImage = Image.FromStream(res.GetResponseStream());

 myImage.Save("c:\\fast.jpg");//保存

>

WebClient直接下载

using (WebClient web = new WebClient())

	{

	   web.DownloadFile("http://img13.360buyimg.com/da/g5/M02/0D/16/rBEDik_nOJ0IAAAAAAA_cbJCY-UAACrRgMhVLEAAD-J352.jpg", "C:\\abc.jpg");

	   web.DownloadFile("http://192.168.81.233/M00/00/00/wKhR6VADbNr5s7ODAAIOGO1_YmA574.jpg", "C:\\abc.jpg");

	}