多线程之生产者和消费者模式

最新推荐文章于 2023-07-28 22:34:52 发布

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最新推荐文章于 2023-07-28 22:34:52 发布

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分类专栏： Java基础文章标签： Java基础多线程生产者和消费者 Thread

本文链接：https://blog.youkuaiyun.com/sqh201030412/article/details/51357340

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本文深入探讨了Java中如何使用多线程实现生产者和消费者模式，详细讲解了其工作原理、线程同步机制，并通过实例代码展示了具体实现过程。

package com.git.base.thread.productandconsumer;
/**
 * 核心实现:
 * 生产者消费者模式:
 * 生产一个,消费一个,如果生产未被消费,那么就等待消费后再生产
 * 如果消费后,没有下一个生产的,就等待生产后在消费
 * <p>Title: DoMain.java</p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2016</p>
 * <p>Company: Sage</p>
 * @author 五虎将
 * @date 2016年5月9日下午10:59:51
 * @version 1.0
 */
public class DoMain {

	public static void main(String[] args) {
		Info info = new Info();
		ProductInfo product = new ProductInfo(info);
		ConsumerInfo consumer = new ConsumerInfo(info);
		
		Thread t1 = new Thread(product);
		Thread t2 = new Thread(consumer);
		t1.start();
		t2.start();
	}
}

package com.git.base.thread.productandconsumer;

/**
 * 中间信息类-核心类!!!
 * 生产者进行生产及消费者进行消费
 * 生产者消费者模式的解决点在中间过渡物体类中
 * 保证中间类的线程唯一性 从而解决多线程问题
 * 什么是多线程问题?其实就是多线程变为单线程再某些点上!
 * <p>Title: Info.java</p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2016</p>
 * <p>Company: Sage</p>
 * @author 五虎将
 * @date 2016年5月9日下午10:42:08
 * @version 1.0
 */
public class Info {

	private String name;
	
	private String content;

	
	private boolean flag = false;
	
/*	1变
	public synchronized void set(String name,String content){
		this.name = name;
		this.content = content;
	}
	
	public synchronized void get(){
		System.out.println(this.name +" =====" + this.content);
	}
*/	
	
	
	public synchronized void set(String name,String content){
		if(flag){
			try {
				super.wait();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
			this.name = name;
			this.content = content;
			try {
				Thread.sleep(200);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			flag = true;
			super.notify();
		
	}
	
	public synchronized void get(){
		if(!flag){
			try {
				super.wait();
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
			System.out.println(this.name +" =====" + this.content);
			try {
				Thread.sleep(200);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			flag = false;
			super.notify();
		
		
	}
	
	
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getContent() {
		return content;
	}

	public void setContent(String content) {
		this.content = content;
	}
	
}

package com.git.base.thread.productandconsumer;

public class ConsumerInfo implements Runnable{

	private Info info;
	
	public ConsumerInfo(Info info) {
		this.info = info;
	}
	
	@Override
	public void run() {
		for (int i = 0; i < 100; i++) {
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			info.get();
		}
	}

}

package com.git.base.thread.productandconsumer;

public class ProductInfo implements Runnable{

	
	private boolean flag = true;
	
	private Info info;

	public ProductInfo(Info info) {
		this.info = info;
	}
	
	@Override
	public void run() {
		for (int i = 0; i < 100; i++) {
				if(flag){
					info.set("宋庆虎","喜欢分布式");
					try {
						Thread.sleep(200);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
					flag = false;
				}else{
					info.set("龙志建", "喜欢JAVA");
					try {
						Thread.sleep(200);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
					flag = true;	
				}
		}
	}

}