Memcache MemcacheQ Java 实现生产者消费者

上一节我们将来MemcacheQ安装与使用，这一节我们结合Memcached的java客户端xmemcached实现生产者和消费者消息队列模型。

1.定义接收消息的回调接口

package cn.slimsmart.memcache.demo.test.mq;

//接收消息回调
public interface MemcacheQCallback {
	//接收消息
	void receice(Object message);
}

2.实现接收消息的客户端

package cn.slimsmart.memcache.demo.test.mq;

import java.util.concurrent.TimeoutException;

import net.rubyeye.xmemcached.MemcachedClient;
import net.rubyeye.xmemcached.exception.MemcachedException;

//接收消息客户端
public class MemcacheQClient implements Runnable {

	private MemcachedClient memcachedClient;
	private MemcacheQCallback memcacheQCallback;
	private String queueName;

	public MemcacheQClient() {
	}

	public MemcacheQClient(MemcachedClient memcachedClient, String queueName, MemcacheQCallback memcacheQCallback) {
		this.memcachedClient = memcachedClient;
		this.memcacheQCallback = memcacheQCallback;
		this.queueName = queueName;
	}

	@Override
	public void run() {
		while (true) {
			try {
				Object message = memcachedClient.get(queueName);
				//如果队列中已经没有数据了,休息一下再试
				if(message == null){
					Thread.sleep(10);
				}else{
					memcacheQCallback.receice(message);
				}
			} catch (TimeoutException e) {
			} catch (InterruptedException e) {
			} catch (MemcachedException e) {
			}
		}
	}

	public MemcachedClient getMemcachedClient() {
		return memcachedClient;
	}

	public void setMemcachedClient(MemcachedClient memcachedClient) {
		this.memcachedClient = memcachedClient;
	}

	public MemcacheQCallback getMemcacheQCallback() {
		return memcacheQCallback;
	}

	public void setMemcacheQCallback(MemcacheQCallback memcacheQCallback) {
		this.memcacheQCallback = memcacheQCallback;
	}

	public String getQueueName() {
		return queueName;
	}

	public void setQueueName(String queueName) {
		this.queueName = queueName;
	}
}

3.实现生产者，发送消息

package cn.slimsmart.memcache.demo.test.mq;

import net.rubyeye.xmemcached.XMemcachedClient;

//发送消息
public class Producer {

	public static void main(String[] args) throws Exception {
		XMemcachedClient client = new XMemcachedClient("192.168.36.189",22201);
	    for( int i = 0 ; i < 10 ; i++){
	    	client.set("queue_test", 0, "hello world - "+i);
	    	System.out.println("send message : "+"hello world - "+i);
	    }
	}
}

4.消费者

package cn.slimsmart.memcache.demo.test.mq;

import net.rubyeye.xmemcached.XMemcachedClient;

//消费
public class Consumer {

	public static void main(String[] args) throws Exception {
	    //XMemcachedClient是线程安全的，可以被多线程使用
	    XMemcachedClient client = new XMemcachedClient("192.168.36.189",22201); 
	    new Thread(new MemcacheQClient(client, "queue_test", new MemcacheQCallback() {
			@Override
			public void receice(Object message) {
				System.out.println("接收到消息："+message);
			}
		})).start();
	}
}

运行看下效果吧。。。