本文講一下Java執行緒池中建立 ThreadFactory 設定執行緒名稱的三種方式。具體內容如下圖所示

1.CustomizableThreadFactory

Spring 框架提供的CustomizableThreadFactory。

1 ThreadFactory springThreadFactory = new CustomizableThreadFactory("springThread-pool-");
2     
3 
4 ExecutorService exec = new ThreadPoolExecutor(1, 1,
5         0L, TimeUnit.MILLISECONDS,
 
6         new LinkedBlockingQueue<Runnable>(10),springThreadFactory);
7 exec.submit(() -> {
8     logger.info("--記憶中的顏色是什麼顏色---");
9 });

2.ThreadFactoryBuilder

Google guava 工具類 提供的ThreadFactoryBuilder,使用鏈式方法建立。

1 ThreadFactory guavaThreadFactory = new ThreadFactoryBuilder().setNameFormat("retryClient-pool-").build();
 
2 
3 
4 ExecutorService exec = new ThreadPoolExecutor(1, 1,
5         0L, TimeUnit.MILLISECONDS,
6         new LinkedBlockingQueue<Runnable>(10),guavaThreadFactory );
7 exec.submit(() -> {
8     logger.info("--記憶中的顏色是什麼顏色---");
9 });

3.BasicThreadFactory

Apache commons-lang3 提供的BasicThreadFactory

1 ThreadFactory basicThreadFactory = new BasicThreadFactory.Builder()
2         .namingPattern("basicThreadFactory-").build();
3 
4 ExecutorService exec = new ThreadPoolExecutor(1, 1,
5         0L, TimeUnit.MILLISECONDS,
6         new LinkedBlockingQueue<Runnable>(10),basicThreadFactory );
7 exec.submit(() -> {
8     logger.info("--記憶中的顏色是什麼顏色---");
9 });

4. 三種方式總結

最終本質都是 給 java.lang.Thread#name 設定名稱,詳情原始碼感興趣的可以自行檢視。

1 final Thread thread = new Thread();
2 thread.setName(name);