实例介绍
【实例简介】该软件基于WPF编写，工程基于VS2012开发，自己当时初学WPF的做的练手的，如果对你有帮助，可以下载源码，
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace UDPDemo
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
//目标IP和端口号
private static string RemoteIp = "127.0.0.1";
private static int RemotePort = 10028;
private UdpClient udpSendClient ;
private IPEndPoint localEP ;
private IPEndPoint ReceiveEndpoint = new IPEndPoint(IPAddress.Any, 0);
Int32 RecCount = 0;
Int32 SendCount = 0;
//接收线程
Thread ReceiveThread;
/// <summary>
/// 判断端口是否被占用
/// </summary>
/// <param name="port"></param>
/// <returns></returns>
private bool PortInUse(int port)
{
bool inUse = false;
IPGlobalProperties ipProperties = IPGlobalProperties.GetIPGlobalProperties();
IPEndPoint[] ipEndPoints = ipProperties.GetActiveUdpListeners();
foreach (IPEndPoint endPoint in ipEndPoints)
{
if (endPoint.Port == port)
{
inUse = true;
break;
}
}
return inUse;
}
private void GetIP()
{
System.Net.IPAddress[] addressList = Dns.GetHostAddresses(Dns.GetHostName());
foreach (IPAddress ip in addressList)
{
if (ip.AddressFamily == AddressFamily.InterNetwork)
{
comboxLocalIp.Items.Add(ip.ToString()) ;
}
}
}
public MainWindow()
{
InitializeComponent();
}
private void BtnConnect_Click(object sender, RoutedEventArgs e)
{
if (PortInUse(Convert.ToInt32(txtLocalPort.Text)) == true)
{
MessageBox.Show("该PORT被占用，请更换其他PORT后再试！", "提示");
return;
}
if (comboxLocalIp.SelectedItem == null)
{
MessageBox.Show("本机无可用IP！", "提示");
return;
}
try
{
localEP = new IPEndPoint(IPAddress.Parse(comboxLocalIp.SelectedItem.ToString()), Convert.ToInt32(txtLocalPort.Text));
if (localEP != null)
{
udpSendClient = new UdpClient(localEP);
}
if (udpSendClient != null)
{
labUDPState.Content = "就绪";
BtnClose.Visibility = Visibility.Visible;
BtnConnect.Visibility = Visibility.Hidden;
comboxLocalIp.IsEnabled = false;
txtLocalPort.IsEnabled = false;
BtnSend.IsEnabled = true;
//开一线程
ReceiveThread = new Thread(new ThreadStart(listen));
//设置为后台线程
ReceiveThread.IsBackground = true;
ReceiveThread.Start();
}
}
catch (Exception ex)
{
MessageBox.Show("错误：" ex.Message, "提示");
}
}
private void BtnClose_Click(object sender, RoutedEventArgs e)
{
try
{
localEP = null;
udpSendClient.Close();
udpSendClient = null;
labUDPState.Content = "未就绪";
if (ReceiveThread.ThreadState == ThreadState.Running)
{
ReceiveThread.Abort();
}
BtnConnect.Visibility = Visibility.Visible;
BtnClose.Visibility = Visibility.Hidden;
comboxLocalIp.IsEnabled = true;
txtLocalPort.IsEnabled = true;
BtnSend.IsEnabled = false;
}
catch (Exception ex)
{
MessageBox.Show("错误：" ex.Message, "提示");
}
}
/// <summary>
/// 网口数据接收事件
/// </summary>
private void listen()
{
try
{
while (true)
{
byte[] UdpRecBuf = udpSendClient.Receive(ref ReceiveEndpoint);
RecCount = UdpRecBuf.Length;
this.Dispatcher.Invoke(new Action(() =>
{
//txtRec.Text = "From[" ReceiveEndpoint.Address ":" ReceiveEndpoint.Port "]:" BitConverter.ToString(UdpRecBuf, 0) "\r\n";
txtRec.Text = "From[" ReceiveEndpoint.Address ":" ReceiveEndpoint.Port "]:" Encoding.UTF8.GetString(UdpRecBuf, 0, UdpRecBuf.Length) "\r\n";
labRecCount.Content = RecCount.ToString();
}));
GC.Collect();
}
}
catch (Exception ex)
{
}
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
GetIP();
if (comboxLocalIp.Items.Count != 0)
{
comboxLocalIp.SelectedIndex = 0;
}
txtLocalPort.Text = "10000";
txtRemoteIp.Text = comboxLocalIp.SelectedItem.ToString();
txtRemotePort.Text = "10002";
}
private void BtnSend_Click(object sender, RoutedEventArgs e)
{
try
{
byte[] tempbuf = Encoding.UTF8.GetBytes(txtSend.Text);
SendCount = tempbuf.Length;
udpSendClient.Send(tempbuf, tempbuf.Length, txtRemoteIp.Text, Convert.ToInt32(txtRemotePort.Text));
labSendCount.Content = SendCount.ToString();
}
catch (Exception ex)
{
MessageBox.Show("错误：" ex.Message, "提示");
}
}
private void BtnClearCount_Click(object sender, RoutedEventArgs e)
{
SendCount = 0;
RecCount = 0;
labSendCount.Content = 0;
labRecCount.Content = 0;
}
private void BtnClearRec_Click(object sender, RoutedEventArgs e)
{
txtRec.Text = string.Empty;
}
private void BtnClearSend_Click(object sender, RoutedEventArgs e)
{
txtSend.Text = string.Empty;
}
}
}
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