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作爲學校項目，我創建了一個FileSharing應用程序。 我將所有想要的消息發送到服務器，並且一切正常，但是當涉及到將文件上傳到服務器時，該文件絕不會是它應該的方式。我調試了應用程序，發現Socket沒有返回正確數量的字節。 我不知道這是否應該是正確的方式，但我認爲這是錯誤的。 例如，當我上傳一個小的.txt文件，並用Notepad ++打開它時，我在文件的末尾看到很多null，這意味着我正在寫更多，然後它應該被寫入。我在互聯網上搜索它，並在codeplex上找到了一個和我一樣的應用程序，但是套接字返回了正確數量的數據，即http://srf.codeplex.com/。Socket.Receive（）返回的數據量不正確
如果有人能幫助我，我將不勝感激。 對不起，如果英語很爛，它不是我的母語。
，處理消息並做服務器功能接收克林特連接：
public void Brodcast()
{
tcpListener.Start();
while (true)
{
try
{
ClientSocket = tcpListener.AcceptSocket();
MessageReceiving();
}
catch { }
}
}
public void MessageReceiving()
{
if (ClientSocket.Connected)
{
OpenPackage.MessageTypeToBytes RSMessage = new OpenPackage.MessageTypeToBytes();
ClientSocket.Receive(RSMessage.MessageBytes, 512, SocketFlags.None);
if (RSMessage.TypeOfMessage == MessageType.Login)
DoLogin();
else if (RSMessage.TypeOfMessage == MessageType.Download)
SendFile();
else if (RSMessage.TypeOfMessage == MessageType.Upload)
ReceiveFile();
else if (RSMessage.TypeOfMessage == MessageType.NConta)
NewAccount();
else if (RSMessage.TypeOfMessage == MessageType.Search)
SearchResult();
else if (RSMessage.TypeOfMessage == MessageType.Apagar)
DeleteFile();
}
}
服務器：
public void ReceiveFile()
{
try
{
byte[] MessageBytes = new byte[512];
ClientSocket.Receive(MessageBytes, 512, SocketFlags.None);
string Nickname = Encoding.ASCII.GetString(MessageBytes);
string[] CNickFich = Nickname.Split('$');
FileHandler Handler = new FileHandler();
long DirectorySize = Handler.GetDirectorySize("C:\\" + CNickFich[0]);
long FileSize = long.Parse(CNickFich[2]);
bool Subs = false;
if ((FileSize + DirectorySize) < MaxFolderSize && MaxFileSize > FileSize)
{
if (!Directory.Exists("C:\\" + CNickFich[0]))
Directory.CreateDirectory("C:\\" + CNickFich[0]);
if (File.Exists("C:\\" + CNickFich[0] + "\\" + CNickFich[1]))
{
File.Delete("C:\\" + CNickFich[0] + "\\" + CNickFich[1]);
Subs = true;
}
MessageTypeToBytes MessageInBytes = new MessageTypeToBytes() { TypeOfMessage = MessageType.OK };
ClientSocket.Send(MessageInBytes.MessageBytes, 512, SocketFlags.None);
int qtdReceived = 0;
long CurrentSize = 0;
byte[] FileBuffer = new byte[BufferSize];
FileStream FileStr = new FileStream("C:\\" + CNickFich[0] + "\\" + CNickFich[1], FileMode.CreateNew, FileAccess.Write);
BufferedStream BufferStr = new BufferedStream(FileStr);
while (CurrentSize < FileSize)
{
qtdReceived = ClientSocket.Receive(FileBuffer, 0, FileBuffer.Length, 0);
CurrentSize += qtdReceived;
BufferStr.Write(FileBuffer, 0, qtdReceived);
BufferStr.Flush();
}
BufferStr.Close();
FileStr.Close();
SqlDataAdapter data = new SqlDataAdapter("SELECT COD_CONTA FROM CONTAS WHERE NICKNAME='"
+ CNickFich[0] + "'", OConn);
DataTable dt = new DataTable();
data.Fill(dt);
if (NFicheiro(Handler.MD5HashFromFile("C:\\" + CNickFich[0] + "\\" + CNickFich[1]), "C:\\" + CNickFich[0] + "\\" + CNickFich[1], Subs,
int.Parse(dt.Rows[0][0].ToString()), CNickFich[3]))
MessageInBytes.TypeOfMessage = MessageType.OK;
else
MessageInBytes.TypeOfMessage = MessageType.Erro;
ClientSocket.Send(MessageInBytes.MessageBytes, 512, SocketFlags.None);
//NFicheiro(new FileHandler().MD5HashFromFile("C:\\" + CNickFich[0] + "\\" + CNickFich[1]), "C:\\" + CNickFich[0], false, 1,);
}
else
{
MessageTypeToBytes MessageInBytes = new MessageTypeToBytes() { TypeOfMessage = MessageType.Erro };
ClientSocket.Send(MessageInBytes.MessageBytes, 512, SocketFlags.None);
}
}
catch
{
MessageTypeToBytes MessageInBytes = new MessageTypeToBytes() { TypeOfMessage = MessageType.Erro };
ClientSocket.Send(MessageInBytes.MessageBytes, 512, SocketFlags.None);
}
}
客戶：
private void UploadWork_DoWork(object sender, DoWorkEventArgs e)
{
FileStream FileStr = null;
BufferedStream BufferStr = null;
Stopwatch Counter = new Stopwatch();
try
{
int CurrentProgress = 0;
Program.CTasks.ClientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
Program.CTasks.ClientSocket.ReceiveTimeout = 60000;
Program.CTasks.ClientSocket.SendTimeout = 60000;
Program.CTasks.ClientSocket.Connect(IPAddress.Parse(Program.CTasks.HostName), Program.CTasks.Port);
MessageTypeToBytes MessageInBytes = new MessageTypeToBytes() { TypeOfMessage = MessageType.Upload };
Program.CTasks.ClientSocket.Send(MessageInBytes.MessageBytes, 512, SocketFlags.None);
FileInfo FileNFO = new FileInfo(Open.FileName);
byte[] NickPath = new byte[512];
byte[] UNickPath = Encoding.ASCII.GetBytes(Program.Nickname + "$" + Open.FileName.Substring(Open.FileName.LastIndexOf('\\') + 1) + "$" + FileNFO.Length.ToString() + "$");
byte[] TagCollectionBytes = Encoding.ASCII.GetBytes(TagCollection + "$");
UNickPath.CopyTo(NickPath, 0);
TagCollectionBytes.CopyTo(NickPath, UNickPath.Length);
Program.CTasks.ClientSocket.Send(NickPath, 512, SocketFlags.None);
Program.CTasks.ClientSocket.Receive(MessageInBytes.MessageBytes, 512, SocketFlags.None);
if (MessageInBytes.TypeOfMessage == MessageType.OK)
{
long FileSize = FileNFO.Length;
long CurrentFileSize = 0;
long qtdRead = 0;
byte[] FileBytes = new byte[BufferSizer];
FileStr = new FileStream(Open.FileName, FileMode.Open, FileAccess.Read);
BufferStr = new BufferedStream(FileStr);
Counter.Start();
while ((qtdRead = BufferStr.Read(FileBytes, 0, FileBytes.Length)) > 0)
{
Program.CTasks.ClientSocket.Send(FileBytes, 0, FileBytes.Length, 0);
CurrentFileSize += qtdRead;
CurrentProgress = (int)((CurrentFileSize * 100)/FileSize);
UploadSpeed = ((double)CurrentFileSize/(Counter.Elapsed.TotalMilliseconds/100));
UploadWork.ReportProgress(CurrentProgress);
}
FileStr.Close();
Counter.Stop();
Program.CTasks.ClientSocket.Receive(MessageInBytes.MessageBytes, 512, SocketFlags.None);
Program.CTasks.ClientSocket.Close();
}
}
catch
{
try
{
Counter.Stop();
FileStr.Close();
Program.CTasks.ClientSocket.Close();
}
catch { }
}
}
不介意SQL連接，它只是用來將文件添加到一個帳戶。 – droidsz