生产者消费者问题

来源：互联网发布：php exec 异步执行编辑：程序博客网时间：2024/06/05 16:37

问题描述：
生产者：爸爸、妈妈
消费者：child1、child2、child3
临界资源：盘子里面放的苹果，最多放10个苹果

代码展示：

苹果类：

package com.niuke.proccon;/** * Created by panlu on 16-9-8. */public class Apple {    private int appleID = 0;    public Apple(int appleID) {        this.appleID = appleID;    }    public int getAppleID() {        return appleID;    }    public void setAppleID(int appleID) {        this.appleID = appleID;    }}

盘子类：

public class Dish {    private Apple[] apples = new Apple[10];    private int curnum = 0;    private Integer procedureumber = null;    private Integer consumenumber = null;    public synchronized void pushApple(Apple apple){        procedureumber = new Integer(curnum);        synchronized (procedureumber) {            if (curnum == apples.length) {                try {                    System.out.println("盘子已满，等待消费...");                    wait();                    //wait是属于object的方法                } catch (InterruptedException e) {                    e.printStackTrace();                }            }            apples[curnum] = apple;           //将苹果放入到盘子里面            curnum++;        }    }    public synchronized Apple popApple() {        consumenumber = new Integer(curnum);        synchronized (consumenumber) {            if (curnum == 0) {                notifyAll();                try {                    System.out.printf("盘子为空，等待生产...");                    wait();                } catch (InterruptedException e) {                    e.printStackTrace();                }            }            Apple apple = apples[curnum];            apples[curnum] = null;            curnum--;            return apple;        }    }}

消费者：

public class Consumer implements Runnable {    private String consumername;    private Dish dish = null;    public Consumer(String consumername,Dish dish) {        this.consumername = consumername;        this.dish = dish;    }    public String getConsumername() {        return consumername;    }    public void setConsumername(String consumername) {        this.consumername = consumername;    }    @Override    public void run() {        int i = 1;        while (true){            Apple apple = dish.popApple();            System.out.println(this.getConsumername()+"吃掉了第"+i+"个苹果");            i++;            try {                Thread.sleep(1000);            } catch (InterruptedException e) {                e.printStackTrace();            }        }    }}

生产者：

public class Procdure implements Runnable{    private String procdureName;    private Dish dish = null;    public Procdure(String procdureName, Dish dish) {        this.procdureName = procdureName;        this.dish = dish;    }    public String getProcdureName() {        return procdureName;    }    public void setProcdureName(String procdureName) {        this.procdureName = procdureName;    }    @Override    public void run() {        int i = 1;        while (true){            Apple apple = new Apple(i);            dish.pushApple(apple);            System.out.println(this.getProcdureName() + "生产了第" + i + "个苹果");            i++;            try {                Thread.sleep(1000);            } catch (InterruptedException e) {                return;            }        }    }}

主类：

public class ProcdureConsumer {    public static void main(String[] args) {        Dish dish = new Dish();           //创建一个盘子        Procdure mom = new Procdure("mom",dish);    //生产者1        Procdure dad = new Procdure("dad",dish);    //生产者2        Consumer child1 = new Consumer("child1",dish);  //消费者1        Consumer child2 = new Consumer("child2",dish);  //消费者2        Consumer child3 = new Consumer("child3",dish);  //消费者3        new Thread(mom).start();        new Thread(dad).start();        Thread th1 =  new Thread(child3);        th1.setPriority(6);        th1.start();        Thread th2 =  new Thread(child1);        th2.setPriority(7);        th2.start();        Thread th3 = new Thread(child2);        th3.setPriority(10);        th3.start();    }}

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