Nanomsg简介
nanomsg是一个socket library，提供了几种常见的通讯模式，目前可用可扩展的协议有:
PAIR 一对一
BUS 多对多
REQREP 允许构建无状态服务集群来处理用户请求
PUBSUB 将消息发给订阅消息的用户
PIPELINE 汇总来自多个来源的消息，并在目的点之间负载均衡。
SURVEY 允许一次查询多个应用程序的状态
Nanomsg订阅发布使用示例
C#中使用Nanomsg非常方便，只需要NuGet里面查找Nanomsg，选择合适版本安装即可，这里选择的是NNanomsg,
版本是0.5.2.使用起来非常简单
需要server发布信息，client订阅信息。
nanomsg使用进程间通信，server端只需要bind某个地址即可，然后通过PublishSocket send数据就可以了，
而client端通过SubscribeSocket订阅一个或者多个topic，然后connect通讯地址，通过Receive接收数据即可。
Nanomsg是将topic和消息连接在一起，只需要client订阅的topic和整个消息的前面部分一致就可以收到数据。
实际代码如下：
server端：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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;
using NNanomsg.Protocols;
namespace WPFNanoMsgServer
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
PublishSocket serversocket = new PublishSocket();
string address;
public MainWindow()
{
InitializeComponent();
}
private void button_Click(object sender, RoutedEventArgs e)
{
//获取参数并启动
serversocket.Bind(textBox_address.Text);
}
private void button1_Click(object sender, RoutedEventArgs e)
{
string topic = textBox_topic.Text;
string content = textBox_content.Text;
string message = topic + "|" + content;
byte[] b = Encoding.UTF8.GetBytes(message);
serversocket.Send(b);
if(textBlock_log.Text.Count()>5000)
{
textBlock_log.Text = "";
}
textBlock_log.Text ="publish msg:"+ message + "\n" + textBlock_log.Text;
}
}
}
对应的UI xaml 内容如下：
<Window x:Class="WPFNanoMsgServer.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WPFNanoMsgServer"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid>
<Button x:Name="button" Content="启动" HorizontalAlignment="Left" Height="26" Margin="429,20,0,0" VerticalAlignment="Top" Width="56" Click="button_Click"/>
<TextBox x:Name="textBox_address" HorizontalAlignment="Left" Height="26" Margin="47,20,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="82"/>
<TextBlock x:Name="textBlock_log" HorizontalAlignment="Left" Height="208" Margin="35,90,0,0" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top" Width="229"/>
<Label x:Name="label" Content="log" HorizontalAlignment="Left" Height="25" Margin="35,60,0,0" VerticalAlignment="Top" Width="66"/>
<Button x:Name="button1" Content="发布" HorizontalAlignment="Left" Height="26" Margin="320,105,0,0" VerticalAlignment="Top" Width="58" Click="button1_Click"/>
<TextBox x:Name="textBox_topic" HorizontalAlignment="Left" Height="27" Margin="309,131,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="169"/>
<TextBox x:Name="textBox_content" HorizontalAlignment="Left" Height="102" Margin="309,170,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="169"/>
</Grid>
</Window>
client端代码：
using System;
using System.Collections.Generic;
using System.Linq;
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;
using System.Windows.Threading;
using NNanomsg.Protocols;
namespace WPFNanoMsgClient
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
DispatcherTimer timer;
static string log = "";
void UpdateLog(object sender, EventArgs e)
{
textBlock_log.Text = log;
}
void StartTimer()
{
timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromMilliseconds(200);
timer.Tick += UpdateLog;
timer.Start();
}
public MainWindow()
{
InitializeComponent();
StartTimer();
}
bool runFlag = false;
static string topicstr;
static string serveraddress;
public static void DealReceive()
{
}
static void DealReceivedata()
{
//await Task.Run({
//});
using (var s = new SubscribeSocket())
{
//Needs to match the first portion of the message being received.
//需要订阅多个数据
//string topicstr = textBox_topic.Text;
string[] topics = topicstr.Split('#');
foreach (var singletopin in topics)
{
s.Subscribe(singletopin);
}
s.Connect(serveraddress);
while (true)
{
byte[] b = s.Receive();
if (b != null)
{
Console.WriteLine("Received: " + Encoding.ASCII.GetString(b));
if (log.Count() > 500)
{
log = "";
}
else
{
log = "received:" + Encoding.UTF8.GetString(b) + "\n" + log;
}
}
else
{
Console.WriteLine("x");
}
}
}
}
Thread th = new Thread(DealReceivedata);
private void button_Click(object sender, RoutedEventArgs e)
{
topicstr = textBox_topic.Text;
serveraddress = textBox_address.Text;
if(runFlag)
{
th.Abort();
}
else
{
th.Start();
}
runFlag = !runFlag;
}
}
}
UI xaml:
<Window x:Class="WPFNanoMsgClient.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WPFNanoMsgClient"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid>
<TextBox x:Name="textBox_address" HorizontalAlignment="Left" Height="21" Margin="32,19,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="128"/>
<TextBox x:Name="textBox_topic" HorizontalAlignment="Left" Height="21" Margin="32,51,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="463"/>
<TextBlock x:Name="textBlock_log" HorizontalAlignment="Left" Height="207" Margin="32,85,0,0" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top" Width="463"/>
<Button x:Name="button" Content="订阅" HorizontalAlignment="Left" Height="34" Margin="394,6,0,0" VerticalAlignment="Top" Width="95" Click="button_Click"/>
</Grid>
</Window>