java之运用Condition实现消费者、生产者模式

package concurrency.lock;

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Condition01 {
    
    

    static Lock lock = new ReentrantLock();
    static Condition full = lock.newCondition();
    static Condition empty = lock.newCondition();

    private static int i = 0;

    public static void producer() throws InterruptedException {
    
    
        lock.lock();
        try {
    
    
            for (; ; ) {
    
    
                i++;
                System.out.println("加上：" + i);
                if (i >= 30) {
    
    
                    System.out.println("等待中......");
                    Thread.sleep(1000);
                    full.await();
                    empty.signal();
                }
            }
        } finally {
    
    
            lock.unlock();
        }
    }

    public static void consumer() throws InterruptedException {
    
    
        lock.lock();
        try {
    
    
            for (; ; ) {
    
    
                i--;
                System.out.println("减去：" + i);
                if (i <= 0) {
    
    
                    System.out.println("唤醒中......");
                    Thread.sleep(1000);
                    full.signal();
                    empty.await();
                }
            }
        } finally {
    
    
            lock.unlock();
        }
    }

    public static void main(String[] args) {
    
    
        new Thread(() -> {
    
    
            try {
    
    
                Condition01.producer();
            } catch (InterruptedException e) {
    
    
                e.printStackTrace();
            }
        }).start();

        new Thread(() -> {
    
    
            try {
    
    
                Condition01.consumer();
            } catch (InterruptedException e) {
    
    
                e.printStackTrace();
            }
        }).start();
    }
}