1.基础类TransferFiles，client和server都需要
using System;
using System.Collections.Generic;
using System.Text; using System.Net;
using System.Net.Sockets;
using System.Windows.Forms; namespace Server
{
public class TransferFiles
{
public static int SendData(Socket s, byte[] data)
{
int total = ;
int size = data.Length;
int dataleft = size;
int sent; while (total < size)
{
sent = s.Send(data, total, dataleft, SocketFlags.None);
total += sent;
dataleft -= sent;
} return total;
} public static byte[] ReceiveData(Socket s, int size)
{
int total = ;
int dataleft = size;
byte[] data = new byte[size];
int recv;
while (total < size)
{
recv = s.Receive(data, total, dataleft, SocketFlags.None);
if (recv == )
{
data = null;
break;
} total += recv;
dataleft -= recv;
}
return data;
} public static int SendVarData(Socket s, byte[] data)
{
int total = ;
int size = data.Length;
int dataleft = size;
int sent;
byte[] datasize = new byte[]; try
{
datasize = BitConverter.GetBytes(size);
sent = s.Send(datasize); while (total < size)
{
sent = s.Send(data, total, dataleft, SocketFlags.None);
total += sent;
dataleft -= sent;
} return total;
}
catch
{
return ; }
} public static byte[] ReceiveVarData(Socket s)
{
int total = ;
int recv;
byte[] datasize = new byte[];
recv = s.Receive(datasize, , , SocketFlags.None);
int size = BitConverter.ToInt32(datasize, );
int dataleft = size;
byte[] data = new byte[size];
while (total < size)
{
recv = s.Receive(data, total, dataleft, SocketFlags.None);
if (recv == )
{
data = null;
break;
}
total += recv;
dataleft -= recv;
}
return data;
}
}
}
2.Server端
using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
using System.Configuration; namespace Server
{
public static class FileServer
{
private static Socket serverSocket;
public static void Init()
{
//服务器IP地址
IPAddress ip = IPAddress.Parse(ConfigurationManager.AppSettings["ListenIP"]);
int myProt = Convert.ToInt32(ConfigurationManager.AppSettings["ListenFilePort"]);
serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
serverSocket.Bind(new IPEndPoint(ip, myProt)); //绑定IP地址：端口
serverSocket.Listen(); //设定最多10个排队连接请求
Console.WriteLine("启动监听{0}成功", serverSocket.LocalEndPoint.ToString());
//通过Clientsoket发送数据
Thread myThread = new Thread(ListenClientConnect);
myThread.Start();
}
public static void Exit()
{
serverSocket.Close();
serverSocket = null;
}
private static void ListenClientConnect()
{
while (true)
{
if (serverSocket != null)
{
try
{
Socket clientSocket = serverSocket.Accept();
Thread receiveThread = new Thread(Create);
receiveThread.Start(clientSocket);
}
catch
{
break;
}
}
}
}
public static void Create(object clientSocket)
{
Socket client = clientSocket as Socket;
//获得客户端节点对象
IPEndPoint clientep = (IPEndPoint)client.RemoteEndPoint; //获得[文件名]
string SendFileName = System.Text.Encoding.Unicode.GetString(TransferFiles.ReceiveVarData(client)); //检查是否使用本地媒体库
if (SocketServer.useLocal)
{
//关闭套接字
client.Close();
return;
} //获得[包的大小]
string bagSize = System.Text.Encoding.Unicode.GetString(TransferFiles.ReceiveVarData(client)); //获得[包的总数量]
int bagCount = int.Parse(System.Text.Encoding.Unicode.GetString(TransferFiles.ReceiveVarData(client))); //获得[最后一个包的大小]
string bagLast = System.Text.Encoding.Unicode.GetString(TransferFiles.ReceiveVarData(client)); string fullPath = Path.Combine(Environment.CurrentDirectory,SendFileName);
//创建一个新文件
FileStream MyFileStream = new FileStream(fullPath, FileMode.Create, FileAccess.Write); //已发送包的个数
int SendedCount = ;
while (true)
{ byte[] data = TransferFiles.ReceiveVarData(client);
if (data.Length == )
{
break;
}
else
{
SendedCount++;
//将接收到的数据包写入到文件流对象
MyFileStream.Write(data, , data.Length);
//显示已发送包的个数 }
}
//关闭文件流
MyFileStream.Close();
//关闭套接字
client.Close();
SocketServer.pForm.ShowMessageBox(SendFileName + "接收完毕！");
}
}
}
3.Client端
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Diagnostics; namespace Client
{
public static class FileClient
{
public static bool SendFile(string IP,int Port,string fullPath)
{
//创建一个文件对象
FileInfo EzoneFile = new FileInfo(fullPath);
//打开文件流
FileStream EzoneStream = EzoneFile.OpenRead(); //包的大小
int PacketSize = ; //包的数量
int PacketCount = (int)(EzoneStream.Length / ((long)PacketSize)); //最后一个包的大小
int LastDataPacket = (int)(EzoneStream.Length - ((long)(PacketSize * PacketCount))); //指向远程服务端节点
IPEndPoint ipep = new IPEndPoint(IPAddress.Parse(IP), Port); //创建套接字
Socket client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); //连接到发送端
try
{
client.Connect(ipep);
}
catch
{
Debug.WriteLine("连接服务器失败！");
return false;
}
//获得客户端节点对象
IPEndPoint clientep = (IPEndPoint)client.RemoteEndPoint; //发送[文件名]到客户端
TransferFiles.SendVarData(client, System.Text.Encoding.Unicode.GetBytes(EzoneFile.Name)); //发送[包的大小]到客户端
TransferFiles.SendVarData(client, System.Text.Encoding.Unicode.GetBytes(PacketSize.ToString())); //发送[包的总数量]到客户端
TransferFiles.SendVarData(client, System.Text.Encoding.Unicode.GetBytes(PacketCount.ToString())); //发送[最后一个包的大小]到客户端
TransferFiles.SendVarData(client, System.Text.Encoding.Unicode.GetBytes(LastDataPacket.ToString())); bool isCut = false;
//数据包
byte[] data = new byte[PacketSize];
//开始循环发送数据包
for (int i = ; i < PacketCount; i++)
{
//从文件流读取数据并填充数据包
EzoneStream.Read(data, , data.Length);
//发送数据包
if (TransferFiles.SendVarData(client, data) == )
{
isCut = true;
return false;
break;
} } //如果还有多余的数据包，则应该发送完毕！
if (LastDataPacket != )
{
data = new byte[LastDataPacket];
EzoneStream.Read(data, , data.Length);
TransferFiles.SendVarData(client, data);
} //关闭套接字
client.Close();
//关闭文件流
EzoneStream.Close();
if (!isCut)
{
return true;
}
return false;
}
}
}