- package com.itheima1;
- import java.util.concurrent.locks.Condition;
- import java.util.concurrent.locks.Lock;
- import java.util.concurrent.locks.ReentrantLock;
- public class tongxin {
- public static void main(String[] args) {
- Resouce r = new Resouce();
- new Thread(new Producer(r)).start();
- new Thread(new Producer(r)).start();
- new Thread(new Consumer(r)).start();
- new Thread(new Consumer(r)).start();
- }
- }
- class Resouce {
- private String name;
- private int count = 1;
- private boolean flag = false;
- private Lock lock = new ReentrantLock();
- private Condition condition_input = lock.newCondition();
- private Condition condition_output = lock.newCondition();
- public void set(String name) {
- lock.lock();
- try {
- while (flag) {
- condition_input.await();
- }
- this.name = name + count++;
- System.out.println(Thread.currentThread().getName()
- + "...生产者......" + this.name);
- flag = true;
- condition_output.signal();
- } catch (InterruptedException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- } finally {
- lock.unlock();
- }
- }
- public synchronized void out() {
- lock.lock();
- try {
- while (!flag) {
- condition_output.await();
- }
- System.out.println(Thread.currentThread().getName() + "+消费者+"
- + this.name);
- flag = false;
- condition_input.signal();
- } catch (Exception e) {
- // throw new RuntimeException();
- } finally {
- lock.unlock();
- }
- }
- }
- class Producer implements Runnable {
- private Resouce r;
- Producer(Resouce r) {
- this.r = r;
- }
- public void run() {
- while (true) {
- r.set("汉堡");
- }
- }
- }
- class Consumer implements Runnable {
- private Resouce r;
- Consumer(Resouce r) {
- this.r = r;
- }
- public void run() {
- while (true) {
- r.out();
- }
- }
- }
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