在 C# 中從服務器發送文件到一個或多個客戶端

Question

這是我的服務器端應用程序代碼：有一個邏輯錯誤沒有得到解決請任何人 hlp .....

public void SendFile(string IP, string path, string FileName) { try {

            FileStream fs = new FileStream(path, FileMode.Open);//assign file to stream
            byte[] buffer = new byte[fs.Length];//initialize buffer with stream length
            int len = (int)fs.Length;
            fs.Read(buffer, 0, len);//read bytes from stream
            fs.Close();


            BinaryFormatter br = new BinaryFormatter();
            TcpClient myclient = new TcpClient(IP, 9000);
            NetworkStream myns = myclient.GetStream();//assign stream to client
            br.Serialize(myns, FileName);//provide header to stream

            BinaryWriter mysw = new BinaryWriter(myns);
            mysw.Write(buffer);//write file in stream
            MessageBox.Show("File Successfully Transfered", "File Send", MessageBoxButtons.OK, MessageBoxIcon.Information);
            mysw.Close();

            myns.Close();
            myclient.Close();
        }
        catch
        {
            MessageBox.Show("Reciever end Not Found", "File Sending Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
        }
    }

這是我的客戶端應用程序代碼，有一個邏輯錯誤沒有得到解決請任何人 hlp .....

公共無效文件接收器（）{

        NetworkStream myns;
        TcpListener mytcpfilelistner;
        Socket mysocketfile;
        Thread myth;
        BinaryReader bb;
        try
        {
            mytcpfilelistner = new TcpListener(9000);
            mytcpfilelistner.Start();
            mysocketfile = mytcpfilelistner.AcceptSocket();
            myns = new NetworkStream(mysocketfile);
            BinaryFormatter br = new BinaryFormatter();
            object op;

            op = br.Deserialize(myns); // Deserialize the Object from Stream


            bb = new BinaryReader(myns);
            byte[] buffer = bb.ReadBytes(2000000);


            FileStream fss = new FileStream("C:\\" + (string)op, FileMode.CreateNew, FileAccess.Write);
            fss.Write(buffer, 0, buffer.Length);
            fss.Close();
            mytcpfilelistner.Stop();
            MessageBox.Show("One File Reeceived and Saved in C Drive", "File Recieve", MessageBoxButtons.OK, MessageBoxIcon.Information);
            LB.Client.lbclient objlb = new LB.Client.lbclient();
            objlb.popup("One File Recieved and And Seved in  C:\\" + (string)op);

            if (mysocketfile.Connected == true)
            {
                while (true)
                {
                    FileReceiver();
                }
            }
        }
        catch
        { }
    }

Answer 1

我不明白你上面的問題是什么。 但是，您可以查看此線程SendFile over TCP/IP .NET CF ，以了解通過套接字發送文件的更簡單方法。 此外，我真的建議您閱讀並使用 C# 和 IDisposable 中的 using 語句，因為您應該在上面的代碼中使用它來確定性地清理代碼分配的資源。 這是一篇讓您入門的文章https://msdn.microsoft.com/en-us/library/yh598w02.aspx