java 线程池实例

最近工作比较闲写了段java线程池方面的东西。别的不说了上代码。

工作线程Woker.java
/**
 * @author pxd
 *
 */
public class Worker extends Thread {
	public boolean isrunning;
	public synchronized void setIsRunning(boolean flag){
		this.isrunning=flag;
		if(flag){
			this.notify();
		}
	}
	public boolean getIsrunning() {
		return isrunning;
	}
	public Worker(){
		super();
	}
	public synchronized void run(){
		System.out.println("线程"+this.getName()+"初始化成功");
		while(true){
			if(!isrunning){
				try {
					System.out.println("工人"+this.getName()+"任务完成回归线程池");
					this.wait();
				} catch (InterruptedException e) {
					System.out.println("线程被阻挡");
					e.printStackTrace();
				}
			}else{
				System.out.println("工人"+this.getName()+"开始工作");
				try {
					this.sleep(3000);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
				System.out.println("工人"+this.getName()+"任务完成开始休息");
				setIsRunning(false);
			}
		}
	}
}

//PoolManage.java 线程池类
import java.util.ArrayList;
import java.util.HashMap;

/**
 * @author pxd
 *
 */
public class PoolManage {
	public int max_pool;
	public ArrayList<Worker> init_pools;
	public void setMaxPool(int num){
		this.max_pool=num;
	}
	public PoolManage(int num){
		setMaxPool(num);
		System.out.println("线程池初始化开始。。。");
		init_pools=new ArrayList();
		for(int i=0;i<this.max_pool;i++){
			Worker worker=new Worker();
			worker.setName("worker_"+i);
			init_pools.add(worker);
			worker.start();
		}
	}
	public void process(ArrayList s){
		int i;
		for(i=0;i<max_pool;i++){
			Worker working=init_pools.get(i);
			if(!working.isrunning){
				System.out.println("工作将由闲置线程"+working.getName()+"执行");
				working.setIsRunning(true);
				return;
			}
		}
		if(i==max_pool){
			System.out.println("线程池无空闲线程，请稍候访问");
		}
	}
	/*public static void main(String[] args){
		PoolManage poolManage=new PoolManage(10);
	}*/
}

 

//服务器类
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.*;
import java.util.ArrayList;
import java.util.HashMap;
/**
 * @author pxd
 *
 */
public class Server {
	//public ServerSocket ssocket;
	PoolManage pool;
	
	public Server(int num){
		 pool=new PoolManage(num);//初始化线程池
		 try{
			ServerSocket ssocket=new ServerSocket(2000);
			Socket socket=ssocket.accept();
			System.out.println("客户端连接成功");
			BufferedReader bf=new BufferedReader(new InputStreamReader(socket.getInputStream()));
			PrintWriter pw=new PrintWriter(socket.getOutputStream(),true);
			String s=null;
			while(true){
				s=bf.readLine();
				//System.out.println("s= "+s);
				ArrayList msg=new ArrayList();
				msg.add(msg);
				pool.process(msg);
			}
			
			}catch(IOException e){
				e.printStackTrace();
			}
	}
	public static void main(String[] args){
			new Server(5);
			}
}

 

//客户端类
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.*;
/**
 * @author pxd
 *
 */
public class Clients {
	public static void main(String[] args){
		BufferedReader bf=new BufferedReader(new InputStreamReader(System.in));
		String s;
		try {
			Socket socket=new Socket("127.0.0.1",2000);
			BufferedReader in=new BufferedReader(new InputStreamReader(socket.getInputStream()));
			BufferedReader sr=new BufferedReader(new InputStreamReader(System.in));
			PrintWriter out=new PrintWriter(socket.getOutputStream(),true);
			while((s=sr.readLine())!=null){
				out.println(s);
			}
		} catch (UnknownHostException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

 

评论

1 楼 sxm1220 2012-07-10  

模拟线程池？