发布
package com.chiwei.redis; import java.io.BufferedReader; import java.io.InputStreamReader; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import redis.clients.jedis.Jedis; public class RedisPublisher { private static final Logger log = LoggerFactory.getLogger(RedisPublisher.class); private final Jedis pubJedis; private final String[] channel; public RedisPublisher(Jedis pubJedis, String[] channel) { this.pubJedis = pubJedis; this.channel = channel; } public void start() { log.debug("Type your message (type quit to exit)"); int channelLen = channel.length; try { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); while (true) { String line = br.readLine(); if (!"quit".equals(line)) { for (int i = 0; i < channelLen; i++) { if (channel[i].matches("^chiwei.*")) { log.debug("Match..."); pubJedis.publish(channel[i], line + "haha"); } else { pubJedis.publish(channel[i], line); } log.debug("Publish to {}", channel[i]); } } else { break; } } } catch (Exception e) { log.error("IO fail while reading input", e); } } }
以上发布类,发布的频道是一个数组,即同时将内容发布到多个频道中,你可以根据内容去判断,不同的内容发布到不同的频道中。
订阅
package com.chiwei.redis; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import redis.clients.jedis.JedisPubSub; public class RedisSubscriber extends JedisPubSub{ private static final Logger log = LoggerFactory.getLogger(RedisSubscriber.class); //取得订阅的消息后的处理 public void onMessage(String s, String s1) { // TODO Auto-generated method stub log.debug("Message received,Channel:{},Msg:{}",s,s1); } //取得按表达式的方式订阅的消息后的处理 public void onPMessage(String s, String s1, String s2) { // TODO Auto-generated method stub log.debug("Pattern:{}",s); log.debug("Pattern Message received,Channel:{},Msg:{}",s1,s2); } //初始化按表达式的方式订阅时候的处理 public void onPSubscribe(String s, int i) { // TODO Auto-generated method stub log.debug("Pattern Subscribe,Pattern:{},ChannelNum:{}",s,i); } //取消按表达式的方式订阅时候的处理 public void onPUnsubscribe(String s, int i) { // TODO Auto-generated method stub log.debug("Pattern Unsubscribe,Pattern:{},ChannelNum:{}",s,i); } //初始化订阅时候的处理 public void onSubscribe(String s, int i) { // TODO Auto-generated method stub log.debug("Subscribe,Channel:{},ChannelNum:{}",s,i); } //取消订阅时候的处理 public void onUnsubscribe(String s, int i) { // TODO Auto-generated method stub log.debug("Unsubscribe,Channel:{},ChannelNum:{}",s,i); } }
该类就是订阅的实现类,对于订阅的各项操作实现具体的处理方法。
启动主类
package com.chiwei.redis; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import redis.clients.jedis.Jedis; import redis.clients.jedis.JedisPool; import redis.clients.jedis.JedisPoolConfig; public class RedisPubSubMain { public static final String[] CHANNEL_NAME = new String[] { "chiwei.momo", "chiwei.nono","taotao"}; private static final Logger log = LoggerFactory.getLogger(RedisPubSubMain.class); public static void main(String[] args) { // TODO Auto-generated method stub log.debug("========================="); JedisPoolConfig config = new JedisPoolConfig(); config = new JedisPoolConfig(); config.setMaxTotal(100); config.setMaxIdle(10); config.setMaxWaitMillis(1000L); config.setTestOnBorrow(true); config.setTestOnReturn(true); JedisPool jedisPool = new JedisPool(config, "192.168.11.176", 7379); final Jedis subJedis = jedisPool.getResource(); final RedisSubscriber sub = new RedisSubscriber(); new Thread(new Runnable() { public void run() { try { //subJedis.subscribe(sub, CHANNEL_NAME); subJedis.psubscribe(sub, "^chiwei.*"); log.debug("Subscribe ended"); } catch (Exception e) { log.error("Subscribe failed", e); } } }).start(); Jedis pubJedis = jedisPool.getResource(); new RedisPublisher(pubJedis, CHANNEL_NAME).start(); sub.unsubscribe(); jedisPool.returnResourceObject(subJedis); jedisPool.returnResourceObject(pubJedis); jedisPool.close(); } }
subJedis.psubscribe(sub, "^chiwei.*");按照正则匹配订阅的频道
由于订阅类会阻塞当前线程的执行,所以在main线程中另起一个线程来启动订阅,然后启动发布线程去发布内容。
2015-04-17 10:35:43,751 - com.chiwei.redis.RedisPubSubMain[18] -0 [main] DEBUG - =========================
2015-04-17 10:35:43,843 - com.chiwei.redis.RedisSubscriber[29] -92 [Thread-3] DEBUG - Pattern Subscribe,Pattern:^chiwei.*,ChannelNum:1
2015-04-17 10:35:43,848 - com.chiwei.redis.RedisPublisher[25] -97 [main] DEBUG - Type your message (type quit to exit)
3
2015-04-17 10:35:53,132 - com.chiwei.redis.RedisPublisher[34] -9381 [main] DEBUG - Match...
2015-04-17 10:35:53,138 - com.chiwei.redis.RedisPublisher[39] -9387 [main] DEBUG - Publish to chiwei.momo
2015-04-17 10:35:53,140 - com.chiwei.redis.RedisPublisher[34] -9389 [main] DEBUG - Match...
2015-04-17 10:35:53,146 - com.chiwei.redis.RedisPublisher[39] -9395 [main] DEBUG - Publish to chiwei.nono
2015-04-17 10:35:53,153 - com.chiwei.redis.RedisPublisher[39] -9402 [main] DEBUG - Publish to taotao