模拟线程池，处理异步任务

来源：互联网发布：人民大学网络教育编辑：程序博客网时间：2024/06/04 19:56

public class Task implements Runnable {private String name = "default";private boolean available = false;private Queue<Task> queue;public Task(Queue queue) {System.out.println("entry task.");this.queue = queue;}// 主线程调用后，唤醒工作线程，将参数传递给工作线程处理。为了接受另一个请求public synchronized void assign(String s) {System.out.println("task assined...");while (available) {try {wait();} catch (Exception e) {}}this.name = s;available = true;notifyAll();}@Overridepublic void run() {System.out.println("run...");while (true) {// step 1.String myName = await();// step 2.process(myName);// step 3. recycle();queue.offer(this);}}public synchronized String await() {System.out.println("waiting...");while (!available) {try {wait();} catch (Exception e) {}}available = false; // 子线程设置，目的：1.使assign()和处理 异步化 。2.使assign()可以及时分配请求notifyAll();String tmp = name;return tmp;}public synchronized void process(String name) {System.out.println("processing...");for (int i = 0; i < 10000000; ++i) {;}System.out.println(name);}public void start() {Thread thread = new Thread(this);thread.start();}}

public class Main {

static Queue<Task> queue = new LinkedBlockingQueue<Task>();public static void init() {for (int i = 0; i < 10; ++i) {Task t = new Task(queue);t.start();queue.offer(t);}System.out.println("init..." + queue.size());}public static void main(String args[]) {init();for (int i = 0; true; ++i) {String tmp = "" + i;// System.out.println(tmp);Task cur = queue.poll();if (cur == null)continue;elsecur.assign(tmp);}}}

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