47 lines
1.6 KiB
Java
47 lines
1.6 KiB
Java
package thead.pool;
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import java.util.concurrent.Executors;
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import java.util.concurrent.SynchronousQueue;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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public class ThreadPoolNewCached03CustomCachedThreadPool {
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public static void main(String[] args) {
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// 定制化线程池
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ThreadPoolExecutor executor = new ThreadPoolExecutor(
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0, // 核心线程数 0（不保持任何核心线程）
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5, // 最大线程数为 4
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60L, // 空闲线程保持时间 60 秒
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TimeUnit.SECONDS, // 时间单位：秒
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new SynchronousQueue<>(),// 使用一个无界队列（任务等待队列）
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Executors.defaultThreadFactory(), // 使用默认线程工厂
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new ThreadPoolExecutor.AbortPolicy() // 默认的拒绝策略：抛出异常
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);
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// 提交一些任务
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for (int i = 0; i < 10; i++) {
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final int taskId = i;
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executor.submit(() -> {
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System.out.println("Task " + taskId + " executed by: " + Thread.currentThread().getName());
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try {
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// 模拟任务执行时间
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Thread.sleep(1000);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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});
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}
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// 等待所有任务完成
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try {
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Thread.sleep(5000);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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// 关闭线程池
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executor.shutdown();
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}
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}
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