使用Executors.defaultThreadFactory()的现有功能，但只设置名称:

import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;

public class NamingThreadFactory implements ThreadFactory {
    private final String prefix;
    private final AtomicInteger threadNumber = new AtomicInteger(0);

    public NamingThreadFactory(String prefix){
        this.prefix = prefix;
    }

    @Override
    public Thread newThread(Runnable r) {
        Thread t = Executors.defaultThreadFactory().newThread(r);
        t.setName(prefix + threadNumber.addAndGet(1));
        return t;
    }
}

您可以尝试提供自己的线程工厂，它将创建具有适当名称的线程。这里有一个例子:

class YourThreadFactory implements ThreadFactory {
   public Thread newThread(Runnable r) {
     return new Thread(r, "Your name");
   }
 }

Executors.newSingleThreadExecutor(new YourThreadFactory()).submit(someRunnable);

或者用Kotlin

Executors.newSingleThreadExecutor { r -> Thread(r, "Your name") }

您可以编写自己的ThreadFactory实现，例如使用一些现有的实现(如defaultThreadFactory)，并在最后更改名称。

实现ThreadFactory的例子:

class ThreadFactoryWithCustomName implements ThreadFactory {
    private final ThreadFactory threadFactory;
    private final String name;

    public ThreadFactoryWithCustomName(final ThreadFactory threadFactory, final String name) {
        this.threadFactory = threadFactory;
        this.name = name;
    }

    @Override
    public Thread newThread(final Runnable r) {
        final Thread thread = threadFactory.newThread(r);
        thread.setName(name);
        return thread;
    }
}

和用法:

Executors.newSingleThreadExecutor(new ThreadFactoryWithCustomName(
        Executors.defaultThreadFactory(),
        "customName")
    );

你可以提供一个ThreadFactory给newSingleThreadScheduledExecutor(ThreadFactory)。工厂将负责创建线程，并能够为它们命名。

引用Javadoc的话:

Creating new threads New threads are created using a ThreadFactory. If not otherwise specified, a Executors.defaultThreadFactory() is used, that creates threads to all be in the same ThreadGroup and with the same NORM_PRIORITY priority and non-daemon status. By supplying a different ThreadFactory, you can alter the thread's name, thread group, priority, daemon status, etc. If a ThreadFactory fails to create a thread when asked by returning null from newThread, the executor will continue, but might not be able to execute any tasks

apache common -lang中的BasicThreadFactory在提供命名行为方面也很有用。您可以使用Builder根据需要命名线程，而不是编写匿名的内部类。下面是来自javadocs的例子:

 // Create a factory that produces daemon threads with a naming pattern and
 // a priority
 BasicThreadFactory factory = new BasicThreadFactory.Builder()
     .namingPattern("workerthread-%d")
     .daemon(true)
     .priority(Thread.MAX_PRIORITY)
     .build();
 // Create an executor service for single-threaded execution
 ExecutorService exec = Executors.newSingleThreadExecutor(factory);

Oracle对此有一个开放的RFE。从甲骨文员工的评论来看，他们似乎不理解这个问题，也不会解决。在JDK中支持它是非常简单的事情之一(不会破坏向后兼容性)，所以RFE被误解有点遗憾。

如前所述，您需要实现自己的ThreadFactory。如果您不想为了这个目的而引入Guava或Apache Commons，我在这里提供一个ThreadFactory实现供您使用。除了能够将线程名前缀设置为“pool”之外，它与您从JDK中获得的内容完全相似。

package org.demo.concurrency;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * ThreadFactory with the ability to set the thread name prefix. 
 * This class is exactly similar to 
 * {@link java.util.concurrent.Executors#defaultThreadFactory()}
 * from JDK8, except for the thread naming feature.
 *
 * <p>
 * The factory creates threads that have names on the form
 * <i>prefix-N-thread-M</i>, where <i>prefix</i>
 * is a string provided in the constructor, <i>N</i> is the sequence number of
 * this factory, and <i>M</i> is the sequence number of the thread created 
 * by this factory.
 */
public class ThreadFactoryWithNamePrefix implements ThreadFactory {

    // Note:  The source code for this class was based entirely on 
    // Executors.DefaultThreadFactory class from the JDK8 source.
    // The only change made is the ability to configure the thread
    // name prefix.


    private static final AtomicInteger poolNumber = new AtomicInteger(1);
    private final ThreadGroup group;
    private final AtomicInteger threadNumber = new AtomicInteger(1);
    private final String namePrefix;

    /**
     * Creates a new ThreadFactory where threads are created with a name prefix
     * of <code>prefix</code>.
     *
     * @param prefix Thread name prefix. Never use a value of "pool" as in that
     *      case you might as well have used
     *      {@link java.util.concurrent.Executors#defaultThreadFactory()}.
     */
    public ThreadFactoryWithNamePrefix(String prefix) {
        SecurityManager s = System.getSecurityManager();
        group = (s != null) ? s.getThreadGroup()
                : Thread.currentThread().getThreadGroup();
        namePrefix = prefix + "-"
                + poolNumber.getAndIncrement()
                + "-thread-";
    }


    @Override
    public Thread newThread(Runnable r) {
        Thread t = new Thread(group, r,
                namePrefix + threadNumber.getAndIncrement(),
                0);
        if (t.isDaemon()) {
            t.setDaemon(false);
        }
        if (t.getPriority() != Thread.NORM_PRIORITY) {
            t.setPriority(Thread.NORM_PRIORITY);
        }
        return t;
    }
}

当您想要使用它时，只需利用所有Executors方法都允许您提供自己的ThreadFactory这一事实。

This

    Executors.newSingleThreadExecutor();

将给出一个ExecutorService，其中线程命名为pool-N-thread-M，但使用

    Executors.newSingleThreadExecutor(new ThreadFactoryWithNamePrefix("primecalc"));

您将得到一个ExecutorService，其中线程名为primecalc-N-thread-M。瞧!