Java 生产者 消费者

[z361719298]

谁能给出代码！！！
线程 很不解啊！！

[dreamhunter_lan]

可以先去看看操作系统中关于线程同步的内容(进程同步也行)，这样会比较好理解为什么需要同步，什么时候需要wait，什么时候去notify或notifyAll，同步方法(也就是synchronized方法)到底是Producer、Consumer中的方法还是应该是被共享的资源中的方法
我给的例子是从Java Tutorial上copy下来的，感觉还不错，上面还有个关于死锁的例子，这份资料不错，LZ可以去下来看看。

import java.util.Random;
import java.util.concurrent.BlockingQueue;

public class Producer implements Runnable {
    private BlockingQueue<String> drop;

    public Producer(BlockingQueue<String> drop) {
        this.drop = drop;
    }

    public void run() {
        String importantInfo[] = {
            "Mares eat oats",
            "Does eat oats",
            "Little lambs eat ivy",
            "A kid will eat ivy too"
        };
        Random random = new Random();

        try {
            for (int i = 0; i < importantInfo.length; i++) {
                drop.put(importantInfo[i]);
                Thread.sleep(random.nextInt(5000));
            }
            drop.put("DONE");
        } catch (InterruptedException e) {}
    }
}

import java.util.Random;
import java.util.concurrent.BlockingQueue;

public class Consumer implements Runnable {
    private BlockingQueue<String> drop;

    public Consumer(BlockingQueue<String> drop) {
        this.drop = drop;
    }

    public void run() {
        Random random = new Random();
        try {
            for (String message = drop.take(); ! message.equals("DONE");
                    message = drop.take()) {
                System.out.format("MESSAGE RECEIVED: %s%n", message);
                Thread.sleep(random.nextInt(5000));
            }
        } catch (InterruptedException e) {}
    }
}

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.SynchronousQueue;

public class ProducerConsumerExample {
    public static void main(String[] args) {
        BlockingQueue<String> drop = new SynchronousQueue<String> ();
        (new Thread(new Producer(drop))).start();
        (new Thread(new Consumer(drop))).start();
    }
}

[361719298]

http://blog.csdn.net/zhouziyan8244158/archive/2009/07/03/4318064.aspx
源码 5个类 很清楚