FastDFS client for .net

ゞ浴缸里的玫瑰 2022-01-17 06:29 254阅读 0赞

[为什么80%的码农都做不了架构师？>>> ][80_]  ![hot3.png][]

fastDfs Code: [https://code.google.com/p/fastdfs/][https_code.google.com_p_fastdfs]

FastDfs\_Client\_DotNet:[https://code.google.com/p/fastdfs/downloads/detail?name=FastDFS\_Client\_Dotnet.rar][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");
    	}

转载于:https://my.oschina.net/xxiu/blog/198550

[80_]: https://my.oschina.net/u/2663968/blog/3051541
[hot3.png]: /images/20220117/aab688778c7441febd9ed65c11d87e8c.png
[https_code.google.com_p_fastdfs]: https://code.google.com/p/fastdfs/
[https_code.google.com_p_fastdfs_downloads_detail_name_FastDFS_Client_Dotnet.rar]: https://code.google.com/p/fastdfs/downloads/detail?name=FastDFS_Client_Dotnet.rar