如何通过tcp流发送图像-c#winForms
我正试图在我的C#Winforms聊天项目中通过TCP流发送图片。问题是，当它到达时，你只能看到一张空白照片如何通过tcp流发送图像-c#winForms,c#,winforms,tcp,C#,Winforms,Tcp,我正试图在我的C#Winforms聊天项目中通过TCP流发送图片。问题是，当它到达时，你只能看到一张空白照片 要发送图像，程序需要点击按钮1在服务器上，客户端检查服务器之前是否发送了“hii”。。。这有点傻，但请忽略 这是我的代码： 客户端： using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; usin
- 要发送图像，程序需要点击按钮1在服务器上，客户端检查服务器之前是否发送了“hii”。。。这有点傻，但请忽略
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Text;
using System.IO;
namespace CLIENT
{
public partial class client : Form
{
Socket sock;
public client()
{
InitializeComponent();
sock = socket();
listBox1.DrawMode = DrawMode.OwnerDrawFixed;
listBox1.DrawItem += new DrawItemEventHandler(listBox1_DrawItem);
}
Socket socket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
//
// Draw the background of the ListBox control for each item.
// Create a new Brush and initialize to a Black colored brush
// by default.
//
e.DrawBackground();
Brush myBrush = Brushes.Black;
//
// Determine the color of the brush to draw each item based on
// the index of the item to draw.
//
switch ((String)listBox1.Items[e.Index])
{
case "other:":
myBrush = Brushes.Green;
break;
case "you:":
myBrush = Brushes.Red;
break;
}
//
// Draw the current item text based on the current
// Font and the custom brush settings.
//
e.Graphics.DrawString(((ListBox)sender).Items[e.Index].ToString(),
e.Font, myBrush, e.Bounds, StringFormat.GenericDefault);
//
// If the ListBox has focus, draw a focus rectangle
// around the selected item.
//
e.DrawFocusRectangle();
}
private void Form1_Load(object sender, EventArgs e)
{
}
public byte[] imageToByteArray(System.Drawing.Image imageIn)
{
MemoryStream ms = new MemoryStream();
imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
return ms.ToArray();
}
public Image byteArrayToImage(byte[] byteArrayIn)
{
// Bitmap bmp;
// using (var ms = new MemoryStream(byteArrayIn))
//{
// bmp = new Bitmap(ms);
//}
//return bmp;
MemoryStream ms = new MemoryStream(byteArrayIn);
Image returnImage = Image.FromStream(ms);
return returnImage;
}
private void connectionButton_Click(object sender, EventArgs e)
{
try
{
sock.Connect(new IPEndPoint(IPAddress.Parse(textBox2.Text), 3));
new Thread( () =>
{
read();
}).Start();
}
catch
{
MessageBox.Show("CONNECTION FAILED");
}
}
void read()
{
while(true)
{
try
{
byte[] buffer =new Byte[255];
int rec = sock.Receive(buffer,0, buffer.Length, 0);
if (rec <= 0)
{
throw new SocketException();
}
Array.Resize(ref buffer, rec);
Invoke((MethodInvoker)delegate
{
if (listBox1.Items.Count > 1)
{
if (listBox1.Items[listBox1.Items.Count - 1].Equals("hii"))
{
Image i=byteArrayToImage(buffer);
pictureBox1.Image =i ;
}
}
listBox1.Items.Add("other:");
listBox1.Items.Add(Encoding.Default.GetString(buffer));
});
}
catch
{
MessageBox.Show("DISCONNECTION!");
Application.Exit();
}
}
}
private void sendButton_Click(object sender, EventArgs e)
{
listBox1.Items.Add("you:");
listBox1.Items.Add(textBox1.Text);
byte[] data = Encoding.Default.GetBytes(textBox1.Text);
sock.Send(data, 0, data.Length, 0);
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
namespace server
{
public partial class server : Form
{
Socket sock;
Socket acc;
public server()
{
InitializeComponent();
//this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
//this.ShowInTaskbar = false;
listBox1.DrawMode = DrawMode.OwnerDrawFixed;
listBox1.DrawItem += new DrawItemEventHandler(listBox1_DrawItem);
}
Socket socket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
public byte[] imageToByteArray(System.Drawing.Image imageIn)
{
MemoryStream ms = new MemoryStream();
imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
return ms.ToArray();
}
public Image byteArrayToImage(byte[] byteArrayIn)
{
MemoryStream ms = new MemoryStream(byteArrayIn);
Image returnImage = Image.FromStream(ms);
return returnImage;
}
private void sendButton_Click(object sender, EventArgs e)
{
listBox1.Items.Add("you:");
listBox1.Items.Add(textBox1.Text);
byte[] data = Encoding.Default.GetBytes(textBox1.Text);
acc.Send(data, 0, data.Length, 0);
}
private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
//
// Draw the background of the ListBox control for each item.
// Create a new Brush and initialize to a Black colored brush
// by default.
//
e.DrawBackground();
Brush myBrush = Brushes.Black;
//
// Determine the color of the brush to draw each item based on
// the index of the item to draw.
//
switch ((String)listBox1.Items[e.Index])
{
case "other:":
myBrush = Brushes.Green;
break;
case "you:":
myBrush = Brushes.Red;
break;
}
//
// Draw the current item text based on the current
// Font and the custom brush settings.
//
e.Graphics.DrawString(((ListBox)sender).Items[e.Index].ToString(),
e.Font, myBrush,e.Bounds,StringFormat.GenericDefault);
//
// If the ListBox has focus, draw a focus rectangle
// around the selected item.
//
e.DrawFocusRectangle();
}
private void listenButton_Click(object sender, EventArgs e)
{
sock = socket();
sock.Bind(new IPEndPoint(0, 3));
sock.Listen(0);
new Thread(() =>
{
acc = sock.Accept();
MessageBox.Show("CONNECTED ACCEPTED!");
sock.Close();
while(true)
{
try
{
byte[] buffer =new byte[255];
int rec =acc.Receive(buffer, 0, buffer.Length, 0);
if (rec<=0)
{
throw new SocketException();
}
Array.Resize(ref buffer, rec);
Invoke((MethodInvoker)delegate
{
listBox1.Items.Add("other:");
listBox1.Items.Add(Encoding.Default.GetString(buffer));
});
}
catch{
MessageBox.Show("DISCONNECTION!");
Application.Exit();
}
}
}).Start();
}
private void server_Load(object sender, EventArgs e)
{
//this.Size = new Size(0, 0);
}
private void button1_Click(object sender, EventArgs e)
{
byte[] data = imageToByteArray(Image.FromFile("c:\\ss\\gg.png"));
acc.Send(data, 0, data.Length, 0);
}
}
}
使用系统；
使用System.Collections.Generic；
使用系统组件模型；
使用系统数据；
使用系统图；
使用System.Linq；
使用系统文本；
使用System.Threading.Tasks；
使用System.Windows.Forms；
Net系统；
使用System.Net.Sockets；
使用系统线程；
使用系统文本；
使用System.IO；
命名空间客户端
{
公共部分类客户端：表单
{
插座；
公共客户机（）
{
初始化组件（）；
sock=socket（）；
listBox1.DrawMode=DrawMode.OwnerDrawFixed；
listBox1.DrawItem+=新的DrawItemEventHandler（listBox1_DrawItem）；
}
插座插座（）
{
返回新套接字（AddressFamily.InterNetwork、SocketType.Stream、ProtocolType.Tcp）；
}
私有void listBox1_DrawItem（对象发送方，DrawItemEventArgs e）
{
//
//为每个项目绘制ListBox控件的背景。
//创建新笔刷并初始化为黑色笔刷
//默认情况下。
//
e、 牵引杆接地（）；
画笔我的画笔=画笔。黑色；
//
//确定要绘制每个项目的笔刷颜色
//要绘制的项的索引。
//
开关（（字符串）listBox1.Items[e.Index]）
{
案例“其他：”：
myBrush=画笔。绿色；
打破
案例“你：”：
myBrush=画笔。红色；
打破
}
//
//基于当前项目绘制当前项目文本
//字体和自定义笔刷设置。
//
e、 Graphics.DrawString（（（ListBox）sender）.Items[e.Index].ToString（），
e、 字体、myBrush、e.Bounds、StringFormat.GenericDefault）；
//
//如果列表框有焦点，则绘制一个焦点矩形
//围绕选定的项目。
//
e、 DrawFocusRectangle（）；
}
私有void Form1\u加载（对象发送方、事件参数e）
{
}
公共字节[]imageToByteArray（System.Drawing.Image imageIn）
{
MemoryStream ms=新的MemoryStream（）；
保存（ms，System.Drawing.Imaging.ImageFormat.Png）；
返回ToArray女士（）；
}
公共映像ByteArrayImage（字节[]byteArrayIn）
{
//位图bmp；
//使用（var ms=新内存流（byteArrayIn））
//{
//bmp=新位图（毫秒）；
//}
//返回bmp；
MemoryStream ms=新的MemoryStream（byteArrayIn）；
Image returnImage=Image.FromStream（毫秒）；
返回图像；
}
私有无效连接按钮\单击（对象发送方，事件参数e）
{
尝试
{
Connect（新的IPEndPoint（IPAddress.Parse（textBox2.Text），3））；
新线程（（）=>
{
read（）；
}).Start（）；
}
抓住
{
MessageBox.Show（“连接失败”）；
}
}
无效读取（）
{
while（true）
{
尝试
{
字节[]缓冲区=新字节[255]；
int rec=sock.Receive（buffer，0，buffer.Length，0）；
如果（记录1）
{
if（listBox1.Items[listBox1.Items.Count-1].Equals（“hii”））
{
图像i=字节数组图像（缓冲区）；
pictureBox1.Image=i；
}
}
列表框1.Items.Add（“其他：”）；
listBox1.Items.Add（Encoding.Default.GetString（buffer））；
});
}
抓住
{
MessageBox.Show（“断开连接！”）；
Application.Exit（）；
}
}
}
私有无效发送按钮\单击（对象发送程序，事件参数e）
{
listBox1.Items.Add（“您：”）；
listBox1.Items.Add（textBox1.Text）；
byte[]data=Encoding.Default.GetBytes（textBox1.Text）；
发送（数据，0，数据长度，0）；
}
私有无效列表框1\u SelectedIndexChanged（对象发送方，事件参数e）
{
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Text;
using System.IO;
namespace CLIENT
{
public partial class client : Form
{
Socket sock;
public client()
{
InitializeComponent();
sock = socket();
listBox1.DrawMode = DrawMode.OwnerDrawFixed;
listBox1.DrawItem += new DrawItemEventHandler(listBox1_DrawItem);
}
Socket socket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
//
// Draw the background of the ListBox control for each item.
// Create a new Brush and initialize to a Black colored brush
// by default.
//
e.DrawBackground();
Brush myBrush = Brushes.Black;
//
// Determine the color of the brush to draw each item based on
// the index of the item to draw.
//
switch ((String)listBox1.Items[e.Index])
{
case "other:":
myBrush = Brushes.Green;
break;
case "you:":
myBrush = Brushes.Red;
break;
}
//
// Draw the current item text based on the current
// Font and the custom brush settings.
//
e.Graphics.DrawString(((ListBox)sender).Items[e.Index].ToString(),
e.Font, myBrush, e.Bounds, StringFormat.GenericDefault);
//
// If the ListBox has focus, draw a focus rectangle
// around the selected item.
//
e.DrawFocusRectangle();
}
private void Form1_Load(object sender, EventArgs e)
{
}
public byte[] imageToByteArray(System.Drawing.Image imageIn)
{
MemoryStream ms = new MemoryStream();
imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
return ms.ToArray();
}
public Image byteArrayToImage(byte[] byteArrayIn)
{
// Bitmap bmp;
// using (var ms = new MemoryStream(byteArrayIn))
//{
// bmp = new Bitmap(ms);
//}
//return bmp;
MemoryStream ms = new MemoryStream(byteArrayIn);
Image returnImage = Image.FromStream(ms);
return returnImage;
}
private void connectionButton_Click(object sender, EventArgs e)
{
try
{
sock.Connect(new IPEndPoint(IPAddress.Parse(textBox2.Text), 3));
new Thread( () =>
{
read();
}).Start();
}
catch
{
MessageBox.Show("CONNECTION FAILED");
}
}
void read()
{
while(true)
{
try
{
byte[] buffer =new Byte[255];
int rec = sock.Receive(buffer,0, buffer.Length, 0);
if (rec <= 0)
{
throw new SocketException();
}
Array.Resize(ref buffer, rec);
Invoke((MethodInvoker)delegate
{
if (listBox1.Items.Count > 1)
{
if (listBox1.Items[listBox1.Items.Count - 1].Equals("hii"))
{
Image i=byteArrayToImage(buffer);
pictureBox1.Image =i ;
}
}
listBox1.Items.Add("other:");
listBox1.Items.Add(Encoding.Default.GetString(buffer));
});
}
catch
{
MessageBox.Show("DISCONNECTION!");
Application.Exit();
}
}
}
private void sendButton_Click(object sender, EventArgs e)
{
listBox1.Items.Add("you:");
listBox1.Items.Add(textBox1.Text);
byte[] data = Encoding.Default.GetBytes(textBox1.Text);
sock.Send(data, 0, data.Length, 0);
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
}
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.IO;
namespace server
{
public partial class server : Form
{
Socket sock;
Socket acc;
public server()
{
InitializeComponent();
//this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
//this.ShowInTaskbar = false;
listBox1.DrawMode = DrawMode.OwnerDrawFixed;
listBox1.DrawItem += new DrawItemEventHandler(listBox1_DrawItem);
}
Socket socket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
}
public byte[] imageToByteArray(System.Drawing.Image imageIn)
{
MemoryStream ms = new MemoryStream();
imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
return ms.ToArray();
}
public Image byteArrayToImage(byte[] byteArrayIn)
{
MemoryStream ms = new MemoryStream(byteArrayIn);
Image returnImage = Image.FromStream(ms);
return returnImage;
}
private void sendButton_Click(object sender, EventArgs e)
{
listBox1.Items.Add("you:");
listBox1.Items.Add(textBox1.Text);
byte[] data = Encoding.Default.GetBytes(textBox1.Text);
acc.Send(data, 0, data.Length, 0);
}
private void listBox1_DrawItem(object sender, DrawItemEventArgs e)
{
//
// Draw the background of the ListBox control for each item.
// Create a new Brush and initialize to a Black colored brush
// by default.
//
e.DrawBackground();
Brush myBrush = Brushes.Black;
//
// Determine the color of the brush to draw each item based on
// the index of the item to draw.
//
switch ((String)listBox1.Items[e.Index])
{
case "other:":
myBrush = Brushes.Green;
break;
case "you:":
myBrush = Brushes.Red;
break;
}
//
// Draw the current item text based on the current
// Font and the custom brush settings.
//
e.Graphics.DrawString(((ListBox)sender).Items[e.Index].ToString(),
e.Font, myBrush,e.Bounds,StringFormat.GenericDefault);
//
// If the ListBox has focus, draw a focus rectangle
// around the selected item.
//
e.DrawFocusRectangle();
}
private void listenButton_Click(object sender, EventArgs e)
{
sock = socket();
sock.Bind(new IPEndPoint(0, 3));
sock.Listen(0);
new Thread(() =>
{
acc = sock.Accept();
MessageBox.Show("CONNECTED ACCEPTED!");
sock.Close();
while(true)
{
try
{
byte[] buffer =new byte[255];
int rec =acc.Receive(buffer, 0, buffer.Length, 0);
if (rec<=0)
{
throw new SocketException();
}
Array.Resize(ref buffer, rec);
Invoke((MethodInvoker)delegate
{
listBox1.Items.Add("other:");
listBox1.Items.Add(Encoding.Default.GetString(buffer));
});
}
catch{
MessageBox.Show("DISCONNECTION!");
Application.Exit();
}
}
}).Start();
}
private void server_Load(object sender, EventArgs e)
{
//this.Size = new Size(0, 0);
}
private void button1_Click(object sender, EventArgs e)
{
byte[] data = imageToByteArray(Image.FromFile("c:\\ss\\gg.png"));
acc.Send(data, 0, data.Length, 0);
}
}
}
使用系统；
使用System.Collections.Generic；
使用系统组件模型；
使用系统数据；
使用系统图；
使用System.Linq；
使用系统文本；
使用System.Threading.Tasks；
使用System.Windows.Forms；
Net系统；
使用System.Net.Sockets；
使用系统线程；
使用System.IO；
命名空间服务器
{
公共部分类服务器：表单
{
插座；
插座acc；
公共服务器（）
{
初始化组件（）；
//this.FormBorderStyle=System.Windows.Forms.FormBorderStyle.None；
//this.ShowInTaskbar=false；
listBox1.DrawMode=DrawMode.OwnerDrawFixed；
listBox1.DrawItem+=新的DrawItemEventHandler（listBox1_DrawItem）；
}
插座插座（）
{
返回新套接字（AddressFamily.Int