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C#使用Socket上传并保存图片的方法

2015-04-22 12:23 1226 查看

本文实例讲述了C#使用Socket上传并保存图片的方法。分享给大家供大家参考。具分析如下：

使用string filename = openFile.FileName;即返回带全路径的文件名 Path.GetFileNameWithoutExtension(filename)即可获得不带路径、后缀名的文件名。上传图片使用二进制 tcp协议上传的

客户端代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
namespace socketClient
{
public partial class Form1 : Form
{
Socket clientSocket;
private static byte[] result = new byte[1024];
public Form1()
{
InitializeComponent();
}
private void buttonBegin_Click(object sender, EventArgs e)
{
//设定服务器IP地址
IPAddress ip = IPAddress.Parse("127.0.0.1");
clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
clientSocket.Connect(new IPEndPoint(ip, 8000));
//配置服务器IP与端口
}
catch
{
MessageBox.Show("连接服务器失败");
return;
}
}
private void buttonClose_Click(object sender, EventArgs e)
{
this.Close();
}
private void buttonSelect_Click(object sender, EventArgs e)
{
OpenFileDialog openFile = new OpenFileDialog();
openFile.Filter = "图像文件(*.bmp;*.gif;*.jpg;*.jpeg;*.png)|*.bmp;*.gif;*.jpg;*.jpeg;*.png";
openFile.Multiselect = false;
if (openFile.ShowDialog() == DialogResult.OK)
{
textBox2.Text =openFile.FileName;
}
//string filename = openFile.FileName;
//即返回带全路径的文件名
//Path.GetFileNameWithoutExtension(filename)
//即可获得不带路径、后缀名的文件名。
byte[] msg = Encoding.Default.GetBytes(Path.GetFileNameWithoutExtension(openFile.FileName));
clientSocket.Send(msg);
try
{
//开始使用socket发送文件
FileStream fs = new FileStream(openFile.FileName, FileMode.OpenOrCreate, FileAccess.Read);
byte[] fssize = new byte[fs.Length];
BinaryReader strread = new BinaryReader(fs);
strread.Read(fssize, 0, fssize.Length - 1);
clientSocket.Send(fssize);
fs.Close();
clientSocket.Shutdown(System.Net.Sockets.SocketShutdown.Send);
clientSocket.Close();
}
catch (Exception ex)
{
string s = ex.ToString();
return;
}
}
}
}

服务器端代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Net;
using System.Threading;
using System.IO;
using System.Drawing.Imaging;
namespace socketServer
{
public partial class Form1 : Form
{
private static byte[] result = new byte[1024];
Socket serverSocket;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
try
{
IPAddress ip = IPAddress.Parse("127.0.0.1");
IPEndPoint iep = new IPEndPoint(ip, 8000);
serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
serverSocket.Bind(iep);
serverSocket.Listen(10);
byte[] recvBytes = new byte[1024];
int bytes = newSocket.Receive(recvBytes, recvBytes.Length, SocketFlags.None);//从客户端接受信息
string name = Encoding.ASCII.GetString(recvBytes, 0, bytes);
textBox1.Text = name+".jpg";
//设置接收数据缓冲区的大小
byte[] b = new byte[1024 * 4];
MemoryStream fs = new MemoryStream();
int got = 0;
int datalength = 0;
while (true)
{
got = newSocket.Receive(b);
fs.Write(b, 0, got);
if (got > 0)
datalength = datalength + got;
else
break;
}
Bitmap Img = new Bitmap(fs);
pictureBox1.Image = Img;
string filename = name + ".jpg";
Img.Save(@"D:images"+filename, ImageFormat.Jpeg);
//关闭写文件流
fs.Close();
//关闭接收数据的Socket
newSocket.Shutdown(System.Net.Sockets.SocketShutdown.Receive);
newSocket.Close();
}
catch (Exception se)
{
serverSocket.Close();
MessageBox.Show("连接错误" + se.ToString());
return;
}
}
}
}

希望本文所述对大家的C#程序设计有所帮助。

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标签： C# Socket

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