.Net Redis实现发布/订阅(RedisPubSubServer)
2016-07-13 11:43
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Redis是一个开源的使用ANSI C语言编写、支持网络、可基于内存亦可持久化的日志型、Key-Value数据库，并提供多种语言的API。本示例演示了怎么样通过Redis服务，来实现发布/订阅服务。借助于ServiceStack.Redis客户端，我们可以轻松来实现这些功能。在这里，依然采用控制台的方式，简单的为大家演示。如果想了解更多，大家可以访问：https://github.com/ServiceStack/ServiceStack.Text。
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http://www.oschina.net/code/snippet_584165_52231
代码片段(3)[全屏查看所有代码]
1. [图片] 通过NuGet获取对ServiceStack.Redis的引用.png
2. [代码]实现发布/订阅服务 跳至 [2] [全屏预览]
?| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | using ServiceStack.Messaging; using ServiceStack.Redis; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; /****************************************************************************************************************** * * * 说 明： Redis发布订阅服务(版本：Version1.0.0) * 作 者：李朝强 * 日 期：2015/05/19 * 修 改： * 参 考：http://my.oschina.net/lichaoqiang/ * 备 注：暂无... * * * ***************************************************************************************************************/ namespace Lcq {class Program {/// <summary> /// /// </summary> /// <param name="args"></param> static void Main( string [] args) {Console.Title = "Redis发布、订阅服务" ; //发布服务 //Pub(); //Console.ReadLine(); //订阅 Subscription(); RedisClient client = new RedisClient( "172.16.16.65" , 6379); while ( true ) {string input = Console.ReadLine(); client.PublishMessage( "channel-1" , input); } } #region 发布/订阅· /// 发布 /// </summary> public static void Pub() {//PooledRedisClientManager ServiceStack.Redis.IRedisClientsManager RedisClientManager = new ServiceStack.Redis.PooledRedisClientManager( "172.16.16.65:6379" ); //发布、订阅服务 IRedisPubSubServer ServiceStack.Redis.RedisPubSubServer pubSubServer = new ServiceStack.Redis.RedisPubSubServer(RedisClientManager, "channel-1" , "channel-2" ); //接收消息 pubSubServer.OnMessage = (channel, msg) => {Console.WriteLine( string .Format( "服务端:频道{0}接收消息：{1}
时间：{2}", channel, msg, DateTime.Now.ToString( "yyyy/MM/dd HH:mm:ss" ))); Console.WriteLine( "___________________________________________________________________" ); }; pubSubServer.OnStart = () => {Console.WriteLine( "发布服务已启动" ); Console.WriteLine( "___________________________________________________________________" ); }; pubSubServer.OnStop
= () => { Console.WriteLine("服务停止" ); }; pubSubServer.OnUnSubscribe
= (channel) => { Console.WriteLine(channel); };pubSubServer.OnError
= (e) => { Console.WriteLine(e.Message); };pubSubServer.OnFailover
= (s) => { Console.WriteLine(s); };//pubSubServer.OnHeartbeatReceived
= () => { Console.WriteLine("OnHeartbeatReceived"); };//pubSubServer.OnHeartbeatSent
= () => { Console.WriteLine("OnHeartbeatSent"); };//pubSubServer.IsSentinelSubscription = true; pubSubServer.Start(); } /// <summary> /// 发送消息 /// </summary> public static Task Send() {return Task.Run(() => {RedisClient client = new RedisClient( "172.16.16.65" , 6379); client.PublishMessage( "channel-1" , "这是我发送的消息！" ); }); } /// <summary> /// 订阅 /// </summary> public static void Subscription() {using (ServiceStack.Redis.RedisClient consumer = new RedisClient( "172.16.16.65" , 6379)) {//创建订阅 ServiceStack.Redis.IRedisSubscription subscription = consumer.CreateSubscription(); //接收消息处理Action subscription.OnMessage = (channel, msg) => {Console.WriteLine( "频道【" + channel + "】订阅客户端接收消息：" + ":" + msg + " [" + DateTime.Now.ToString( "yyyy/MM/dd HH:mm:ss" ) + "]" ); Console.WriteLine( "订阅数：" + subscription.SubscriptionCount); Console.WriteLine( "___________________________________________________________________" ); }; //订阅事件处理 subscription.OnSubscribe = (channel) => {Console.WriteLine( "订阅客户端：开始订阅" + channel); }; //取消订阅事件处理 subscription.OnUnSubscribe
= (a) => { Console.WriteLine("订阅客户端：取消订阅" ); }; //模拟：发送100条消息给服务 Task.Run(() => {using (ServiceStack.Redis.IRedisClient publisher = new ServiceStack.Redis.RedisClient( "172.16.16.65" , 6379)) {for ( int i = 1; i <= 100; i++) {publisher.PublishMessage( "channel-1" , string .Format( "这是我发送的第{0}消息!", i)); System.Threading.Thread.Sleep(200); } } subscription.UnSubscribeFromAllChannels(); }); //订阅频道 subscription.SubscribeToChannels( "channel-1" ); } } #endregion /// <summary> /// Example /// </summary> public static void Example() {var messagesReceived = 0; var PublishMessageCount = 10; string MessagePrefix = "LCQ:" , ChannelName = "channel-4" ; using ( var redisConsumer = new RedisClient( "172.16.16.65" , 6379)) using ( var subscription = redisConsumer.CreateSubscription()) {//订阅 subscription.OnSubscribe = channel => {Console.WriteLine( "订阅频道'{0}'", channel); Console.WriteLine(); }; //取消订阅 subscription.OnUnSubscribe = channel => {Console.WriteLine( "取消订阅
'{0}'", channel); Console.WriteLine(); }; //接收消息 subscription.OnMessage = (channel, msg) => {Console.WriteLine( "接收消息
'{0}' from channel '{1}'", msg, channel); Console.WriteLine(); //As soon as we've received all 5 messages, disconnect by unsubscribing to all channels if (++messagesReceived == PublishMessageCount) {subscription.UnSubscribeFromAllChannels(); } }; ThreadPool.QueueUserWorkItem(x => {Thread.Sleep(200); Console.WriteLine( "开始发送消息..." ); using ( var redisPublisher = new RedisClient( "172.16.16.65" , 6379)) {for ( var i = 1; i <= PublishMessageCount; i++) {var message = MessagePrefix + i; Console.WriteLine( "正在发布消息
'{0}' 到频道 '{1}'", message, ChannelName); Console.WriteLine(); redisPublisher.PublishMessage(ChannelName, message); } } }); Console.WriteLine( "开始启动监听
'{0}'", ChannelName); subscription.SubscribeToChannels(ChannelName); //blocking } Console.WriteLine( "EOF" ); } } } |
3. [图片] 示例控制台效果.png
http://www.oschina.net/code/snippet_584165_52231
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