java的自定义线程池

Java的自定义线程池是指在Java中通过编程的方式创建并配置一个符合特定需求的线程池。在Java中，可以使用ThreadPoolExecutor类来创建自定义线程池。通过设置参数，可以指定核心线程数、最大线程数、队列容量等属性，以及自定义拒绝策略。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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相关问题

Java 自定义线程池

Java中可以通过自定义线程池来管理线程的执行。可以使用@Async注解来指定线程池，如在@Component注解中使用@Async("taskExecutor")来指定线程池的名称为"taskExecutor"。\[1\]另外，还可以通过实现Callable接口并重写call()方法，然后使用FutureTask来获取线程的执行结果。\[2\]在线程池的使用方面，可以使用ExecutorService接口来创建线程池，例如使用Executors.newFixedThreadPool(3)来创建一个固定大小为3的线程池。\[3\]最后，记得在使用完线程池后调用shutdown()方法来关闭线程池。
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java自定义线程池

以下是Java自定义线程池的示例代码：

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class CustomThreadPool {
    public static void main(String[] args) {
        // 创建一个固定大小的线程池
        ExecutorService executor = Executors.newFixedThreadPool(5);

        // 提交任务给线程池执行
        for (int i = 0; i < 10; i++) {
            Runnable worker = new WorkerThread("Task " + (i + 1));
            executor.execute(worker);
        }

        // 关闭线程池
        executor.shutdown();
        while (!executor.isTerminated()) {
        }

        System.out.println("所有任务执行完毕");
    }
}

class WorkerThread implements Runnable {
    private String taskName;

    public WorkerThread(String taskName) {
        this.taskName = taskName;
    }

    @Override
    public void run() {
        System.out.println(Thread.currentThread().getName() + " 开始执行任务：" + taskName);
        try {
            // 模拟任务执行时间
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(Thread.currentThread().getName() + " 完成任务：" + taskName);
    }
}