C# · 12月 28, 2021

C#使用Socket上传并保存图片的方法

@H_419_0@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:

@H_419_0@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

@H_419_0@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 { Message@R_191_2419@.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) { text@R_191_2419@2.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,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; } } }}@H_419_0@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,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,bytes); text@R_191_2419@1.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,got); if (got > 0) datalength = datalength + got; else break; } Bitmap Img = new Bitmap(fs); picture@R_191_2419@1.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(); Message@R_191_2419@.Show(“连接错误” + se.ToString()); return; } } }}@H_419_0@希望本文所述对大家的C#程序设计有所帮助。