生产——消费者模式

public class Data {
private String id;
private String name;

public Data(String id, String name) {
super();
this.id = id;
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Override
public String toString() {
// TODO Auto-generated method stub
return "(id:"+id+",name:"+name+")";
}

}

public class Provider implements Runnable{

//共享缓存区域
private BlockingQueue<Data> queue;

//多线程是否启动变量
private volatile boolean isRunning = true;

//id生成器
private static AtomicInteger count = new AtomicInteger();

//随机对象
private static Random r = new Random();

public Provider(BlockingQueue queue) {
this.queue = queue;
}

@Override
public void run() {
while(isRunning){
try{
//生产数据执行时间
Thread.sleep(r.nextInt(1000));
//获取数据进行累计
int id = count.incrementAndGet();
Data data = new Data(Integer.toString(id), "数据"+id);
System.out.println("当前线程："+Thread.currentThread().getName()+",获取了数据,id为"+id+",进行装载到公共缓冲区...");
if(!this.queue.offer(data,2,TimeUnit.SECONDS)){//add直接加元素 offer加元素带加入的时间 2秒加入返回true
System.out.println("提交缓冲区数据...");
}
}catch(InterruptedException e){
e.printStackTrace();
}
}
}

public void stop(){
this.isRunning = false;
}

}

public class Consumer implements Runnable{
private BlockingQueue<Data> queue;

public Consumer(BlockingQueue queue) {
this.queue = queue;
}

//随机对象
public static Random r = new Random();

@Override
public void run() {
while(true){
try{
Data data = this.queue.take();
Thread.sleep(r.nextInt(1000));
System.out.println("当前消费线程为:"+Thread.currentThread().getName()+",消费成功,消费数据为id:"+data.getId());
}catch(InterruptedException e){
e.printStackTrace();
}
}
}

}

public class Main {

public static void main(String[] args) {
//内存缓冲区域
BlockingQueue<Data> queue = new LinkedBlockingQueue<Data>(10);
//生产者
Provider p1 = new Provider(queue);
Provider p2 = new Provider(queue);
Provider p3 = new Provider(queue);

//消费者
Consumer c1 = new Consumer(queue);
Consumer c2 = new Consumer(queue);
Consumer c3 = new Consumer(queue);
//创建线程池运行 这是一个缓存的线程池 可以创建无穷多的线程 没有任务时不创建线程 空闲线程存活时间60s
ExecutorService cachePool = Executors.newCachedThreadPool();
cachePool.execute(p1);
cachePool.execute(p2);
cachePool.execute(p3);
cachePool.execute(c1);
cachePool.execute(c2);
cachePool.execute(c3);

try {
Thread.sleep(3000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
p1.stop();
p2.stop();
p3.stop();
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

}