Java中threadpoolexecutor使用例子

非常感谢你的提问！以下是 Java 中 ThreadPoolExecutor 的使用例子：

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

public class ThreadPoolExecutorExample {

    public static void main(String[] args) {

        // 创建线程池
        ExecutorService executor = Executors.newFixedThreadPool(5);

        // 向线程池提交任务
        for (int i = 0; i < 10; i++) {
            Runnable worker = new WorkerThread("" + i);
            executor.execute(worker);
        }

        // 关闭线程池
        executor.shutdown();

        while (!executor.isTerminated()) {
        }

        System.out.println("Finished all threads");
    }
}

class WorkerThread implements Runnable {

    private String message;

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

    public void run() {
        System.out.println(Thread.currentThread().getName() + " (Start) message = " + message);
        processMessage();
        System.out.println(Thread.currentThread().getName() + " (End)");
    }

    private void processMessage() {
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

希望对你有所帮助！如果你还有其它问题，欢迎随时向我提问。