C# socket传文件

C#SocketSC结构文件传输 收藏
下面是服务器端的代码，里面注释都很清楚我就不解释了

Serve form 上有一个btnListen的button,一个表连接状态的：Connection State的label,还有一个表连接状态的txtBox:txtConState

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using System;
using System.Collections.Generic;
using ponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using System.IO;
using ;
using .Sockets;

namespace FileSendServer
{
public partial class FileSendServer : Form
{
public FileSendServer()
{
InitializeComponent();
}

private void btnListen_Click(object sender, EventArgs e)
{
object obj = new string[] { "172.25.73.158", "D:\\test.txt" };
//to parse the obj to IP and filename
string[] str = (string[])(obj);
string clientIP = str[0];
string filename = str[1];
try
{
//initialize a Socket Instance;
Socket listenSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);

IPAddress hostIP = Dns.GetHostEntry(clientIP).AddressList[0]; //将主机名或 IP 地址解析为 IPHostEntry 实例。
//将网络端点表示为 IP 地址和端口号。
IPEndPoint ep = new IPEndPoint(hostIP, 11000); //用指定的地址和端口号初始化 IPEndPoint 类的新实例。

////取得主机IP
//IPHostEntry ipHost = Dns.Resolve(Dns.GetHostName());
//IPAddress ipAddr = ipHost.AddressList[0];
//IPEndPoint ep1 = new IPEndPoint(ipAddr, 11000); //用指定的地址和端口号初始化 IPEndPoint 类的新实例。
//listenSocket
listenSocket.Bind(ep); //要与 Socket 关联的本地 EndPoint。
listenSocket.Listen(5); //将 Socket 置于侦听状态,参数backlog为挂起连接队列的最大长度


//accept the call
Socket mySoket = listenSocket.Accept(); //为新建连接创建新的 Socket。
txtConState.Text = "已建立联接!";
//define a buff
Byte

[] buff = new Byte[256];
int result;

//new file
if (File.Exists(filename))
{
File.Delete(filename);
}

//StreamWrite
StreamWriter sr = new StreamWriter(File.Create(filename));

while (true)
{
buff = new Byte[256];
result = mySoket.Receive(buff); //接收来自绑定的 Socket 的数据。
sr.Write(Encoding.Default.GetString(buff));
//sr.Write();
if (result < 256)
break;
}
sr.Close();//close buffer write
//txtConState.Clear();
}
catch (SocketException ex)
{
Console.WriteLine(ex.ToString());
}

}

}
}
using System;
using System.Collections.Generic;
using ponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using System.IO;
using ;
using .Sockets;

namespace FileSendServer
{
public partial class FileSendServer : Form
{
public FileSendServer()
{
InitializeComponent();
}

private void btnListen_Click(object sender, EventArgs e)
{
object obj = new string[] { "172.25.73.158", "D:\\test.txt" };
//to parse the obj to IP and filename
string[] str = (string[])(obj);
string clientIP = str[0];
string filename = str[1];
try
{
//initialize a Socket Instance;
Socket listenSocket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp);

IPAddress hostIP = Dns.GetHostEntry(clientIP).AddressList[0]; //将主机名或 IP 地址解析为 IPHostEntry 实例。
//将网络端点表示为 IP 地址和端口号。
IPEndPoint ep = new IPEndPoint(hostIP, 11000); //用指定的地址和端口号初始化 IPEndPoint 类的新实例。

////取得主机IP
//IPHostEntry ipHost = Dns.Resolve(Dns.GetHostName());
//IPAddress ipAddr = ipHost.AddressList[0];
//IPEndPoint ep1 = new IPEndPoint(ipAddr, 11000); //用指定的地址和端口号初始化 IPEndPoint 类的新实例。
//listenSocket
listenSocket.Bind(ep); //要与 Socket 关联的本地 EndPoint。
listenSocket.Listen(5

); //将 Socket 置于侦听状态,参数backlog为挂起连接队列的最大长度


//accept the call
Socket mySoket = listenSocket.Accept(); //为新建连接创建新的 Socket。
txtConState.Text = "已建立联接!";
//define a buff
Byte[] buff = new Byte[256];
int result;

//new file
if (File.Exists(filename))
{
File.Delete(filename);
}

//StreamWrite
StreamWriter sr = new StreamWriter(File.Create(filename));

while (true)
{
buff = new Byte[256];
result = mySoket.Receive(buff); //接收来自绑定的 Socket 的数据。
sr.Write(Encoding.Default.GetString(buff));
//sr.Write();
if (result < 256)
break;
}
sr.Close();//close buffer write
//txtConState.Clear();
}
catch (SocketException ex)
{
Console.WriteLine(ex.ToString());
}

}

}
}

下面是客户端代码,

客户端是有一个，btnBrowse的打开浏览button,加了一个OpenFileDialog控件,一个btnSendFile的文件传输button,一个用于显示地址的文本框：txtFilePath

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using System;
using System.Collections.Generic;
using ponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using System.IO;
using ;
using .Sockets;

namespace FileSendClient
{
public partial class FileSendClient : Form
{
public static string path;
public FileSendClient()
{
InitializeComponent();
}

private void btnBrowse_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
this.txtFilePath.Text = openFileDialog1.FileName;
path = openFileDialog1.FileName;
}
}

private void btnSendFile_Click(object sender, EventArgs e)
{

String ServerIP = "172.25.73.158";
string filename = path;
//string filename="C:\\test.txt";
try
{
//为 Internet 主机地址信息提供容器类。

IPHostEntry ipHost = Dns.GetHostEntry(ServerIP); //将主机名或 IP 地址解析为 IPHostEntry 实例。
IPAddress ipAddr = ipHost.AddressList[0];
IPEndPoint ipEndP = new IPEndPoint(ipAddr, 11000);

Socket client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

//connect
client.Connect(ipEndP);

Console.WriteLine("Sending {0} to the Host", filename);
client.SendFile(filename);

//to shutdown the Server'receive and Client'send
client.Shutdown(SocketShutdown.Both);
client.Close();
}
catch (SocketException ex)
{
Console.WriteLine(ex.ToString());

}

}


}
}