C# Socket实现通过公共服务程序获取数据的例子

 本实例实现的是用wpf 实现的 “C# Socket与实现” 的实例

<Window x:Class="SocketApp.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="354" Width="319"> <Grid> <Button Margin="86,0,88,61" Name="button1" Click="button1_Click" Height="40" VerticalAlignment="Bottom">Button</Button> <TextBox Height="24" Margin="100,32,0,0" Name="IPTextBox" VerticalAlignment="Top" Text="www.baidu.com" HorizontalAlignment="Left" Width="123" /> <Label Height="28" HorizontalAlignment="Left" Margin="18,28,0,0" Name="label1" VerticalAlignment="Top" Width="61">IP地址：</Label> <TextBox Height="24" HorizontalAlignment="Left" Margin="100,81,0,0" Name="PortTextBox" VerticalAlignment="Top" Width="123">80</TextBox> <Label Height="28" HorizontalAlignment="Left" Margin="18,77,0,0" Name="label2" VerticalAlignment="Top" Width="61">端口号：</Label> <TextBox Margin="100,135,48,154" Name="FileNameTextBox">D:/Temp/index.html</TextBox> <Label HorizontalAlignment="Left" Margin="18,131,0,146" Name="label3" Width="76">预存文件：</Label> </Grid> </Window>

 

using System; using System.Collections.Generic; using System.Linq; using System.Text; 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; using System.Net; using System.Net.Sockets; using System.IO; namespace SocketApp { /// <summary> /// Window1.xaml 的交互逻辑 /// </summary> public partial class Window1 : Window { public Window1() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { //获取文件名称 string fileName = FileNameTextBox.Text.Trim(); //获取主机名称 string HostName = IPTextBox.Text.Trim(); //获取端口号 int port = Int32.Parse(PortTextBox.Text.Trim()); //得到主机信息 IPHostEntry ipInfor = Dns.Resolve(HostName); //获取IP地址Address[] IPAddress[] ipAddr = ipInfor.AddressList; //获得IP IPAddress ip = ipAddr[0]; //组合出远程终点 IPEndPoint hostEP = new IPEndPoint(ip, port); //创建Socket实例 Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp); try { //尝试连接 socket.Connect(hostEP); } catch(Exception ex) { MessageBox.Show(this, "连接错误："+ex.Message, "提示信息", MessageBoxButton.OK); } //发送给远程主机的请求内容串 string sendStr = "GET / HTTP/1.1/r/nHost: " + HostName + "/r/nConnection: Close/r/n/r/n"; //创建一个byte数组用以转发数据字符串 byte[] bytesSendStr = new byte[1024]; //把转发字符串转化为byte字符数据 bytesSendStr = System.Text.Encoding.ASCII.GetBytes(sendStr.ToCharArray()); try { //向主机发送请求 socket.Send(bytesSendStr,bytesSendStr.Length,0); } catch(Exception ce) { MessageBox.Show("发送错误:"+ce.Message,"提示信息", MessageBoxButton.OK); } //创建接收字符串 string recvStr = ""; //创建接收byte数组,一次接收1024个字节 byte[] recvByte = new byte[1024]; //声明实际接收字节数 int bytes = 0; while (true) { //接收数据 bytes = socket.Receive(recvByte, recvByte.Length, 0); if (bytes <= 0) { break; } //把接收到的数据转化成UTF-8的编码字符串 recvStr += System.Text.Encoding.Unicode.GetString(recvByte); } //把读取的字符串转化为字符数组 byte[] content = System.Text.Encoding.Unicode.GetBytes(recvStr.ToCharArray()); try { //创建文件流对象 FileStream fileStr = new FileStream(fileName, FileMode.OpenOrCreate, FileAccess.ReadWrite); //写入文件 fileStr.Write(content, 0, content.Length); //把文件用浏览器打开 System.Diagnostics.Process.Start("IExplore.exe", fileName); } catch(Exception fe) { MessageBox.Show("文件创建/写入错误:" + fe.Message, "提示信息", MessageBoxButton.OK); } //禁用soket socket.Shutdown(SocketShutdown.Both); //关闭socket socket.Close(); } } }