1.新建解决方案NamedPipeExample
- 新建两个项目：Client和Server，两者的输出类型均为“Windows 应用程序”。整个程序的结构如下图所示。
此Form1为Client的窗体，如下图所示。
后端代码，如下。
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.IO;
using System.IO.Pipes;
using System.Security.Principal;
namespace Client
{
public partial class Form1 : Form
{
NamedPipeClientStream pipeClient =
new NamedPipeClientStream("localhost", "testpipe", PipeDirection.InOut, PipeOptions.Asynchronous, TokenImpersonationLevel.None);
StreamWriter sw = null;
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
try
{
pipeClient.Connect(5000);
sw = new StreamWriter(pipeClient);
sw.AutoFlush = true;
}
catch (Exception ex)
{
MessageBox.Show("连接建立失败，请确保服务端程序已经被打开。");
this.Close();
}
}
private void btnSend_Click(object sender, EventArgs e)
{
if (sw != null)
{
sw.WriteLine(this.txtMessage.Text);
}
else
{
MessageBox.Show("未建立连接，不能发送消息。");
}
}
}
}
此Form1为Server的窗体，如下图所示
后端代码，如下。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.IO.Pipes;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace Server
{
public partial class Form1 : Form
{
NamedPipeServerStream pipeServer =
new NamedPipeServerStream("testpipe", PipeDirection.InOut, 1, PipeTransmissionMode.Message, PipeOptions.Asynchronous);
public Form1()
{
InitializeComponent();
}
private void textBox1_TextChanged(object sender, EventArgs e)
{
}
private void Form1_Load(object sender, EventArgs e)
{
ThreadPool.QueueUserWorkItem(delegate
{
pipeServer.BeginWaitForConnection((o) =>
{
NamedPipeServerStream pServer = (NamedPipeServerStream)o.AsyncState;
pServer.EndWaitForConnection(o);
StreamReader sr = new StreamReader(pServer);
while (true)
{
this.Invoke((MethodInvoker)delegate {
lsvMessage.Text = sr.ReadLine(); });
}
}, pipeServer);
});
}
private void maskedTextBox1_MaskInputRejected(object sender, MaskInputRejectedEventArgs e)
{
}
}
}
先运行Server再运行Client