Spring @Async之二：SpringBoot 自定義線程池，修改springboot的默認線程池

時間  2019-11-21
標籤 spring async 之二 springboot 自定義 線程 修改 默認 欄目 Spring 简体版
原文   原文鏈接

本教程目錄：java

  1. 自定義線程池
  2. 配置spring默認的線程池

1. 自定義線程池

1.1 修改application.properties
task.pool.corePoolSize=20
task.pool.maxPoolSize=40
task.pool.keepAliveSeconds=300
task.pool.queueCapacity=50
1.2 線程池配置屬性類TaskThreadPoolConfig .java
import org.springframework.boot.context.properties.ConfigurationProperties;

/**
 * 線程池配置屬性類
 */
@ConfigurationProperties(prefix = "task.pool")
public class TaskThreadPoolConfig {
    private int corePoolSize;

    private int maxPoolSize;

    private int keepAliveSeconds;

    private int queueCapacity;
    //...getter and setter methods...
}
1.3 建立線程池 TaskExecutePool .java
/**
 * 建立線程池
 */
@Configuration
@EnableAsync
public class TaskExecutePool {
    @Autowired
    private TaskThreadPoolConfig config;

    @Bean
    public Executor myTaskAsyncPool() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        //核心線程池大小
        executor.setCorePoolSize(config.getCorePoolSize());
        //最大線程數
        executor.setMaxPoolSize(config.getMaxPoolSize());
        //隊列容量
        executor.setQueueCapacity(config.getQueueCapacity());
        //活躍時間
        executor.setKeepAliveSeconds(config.getKeepAliveSeconds());
        //線程名字前綴
        executor.setThreadNamePrefix("MyExecutor-");

        // setRejectedExecutionHandler：當pool已經達到max size的時候，如何處理新任務
        // CallerRunsPolicy：不在新線程中執行任務，而是由調用者所在的線程來執行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
 executor.setWaitForTasksToCompleteOnShutdown(true);
          executor.setAwaitTerminationSeconds( 60 ); 
        executor.initialize();
        return executor;
    }
}

上面咱們經過使用ThreadPoolTaskExecutor建立了一個線程池，同時設置瞭如下這些參數：spring

  • 核心線程數20：線程池建立時候初始化的線程數
  • 最大線程數40：線程池最大的線程數，只有在緩衝隊列滿了以後纔會申請超過核心線程數的線程
  • 緩衝隊列50：用來緩衝執行任務的隊列
  • 容許線程的空閒時間300秒：當超過了核心線程出以外的線程在空閒時間到達以後會被銷燬
  • 線程池名的前綴：設置好了以後能夠方便咱們定位處理任務所在的線程池
  • 線程池對拒絕任務的處理策略：這裏採用了CallerRunsPolicy策略，當線程池沒有處理能力的時候，該策略會直接在 execute 方法的調用線程中運行被拒絕的任務；若是執行程序已關閉，則會丟棄該任務

（ThreadPoolExecutor.AbortPolicy 丟棄任務並拋出RejectedExecutionException異常(默認)。
ThreadPoolExecutor.DiscardPolic 丟棄任務，可是不拋出異常。
ThreadPoolExecutor.DiscardOldestPolicy 丟棄隊列最前面的任務，而後從新嘗試執行任務
ThreadPoolExecutor.CallerRunsPolic 由調用線程處理該任務）springboot

說明：setWaitForTasksToCompleteOnShutdown（true）該方法就是這裏的關鍵，用來設置線程池關閉的時候等待全部任務都完成再繼續銷燬其餘的Bean，這樣這些異步任務的銷燬就會先於Redis線程池的銷燬。同時，這裏還設置了setAwaitTerminationSeconds(60)，該方法用來設置線程池中任務的等待時間，若是超過這個時候尚未銷燬就強制銷燬，以確保應用最後可以被關閉，而不是阻塞住。app

1.4 建立線程任務
@Component
public class AsyncTask {
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Async("myTaskAsyncPool")  //myTaskAsynPool即配置線程池的方法名，此處若是不寫自定義線程池的方法名，會使用默認的線程池
    public void doTask1(int i) throws InterruptedException{
        logger.info("Task"+i+" started.");
    }
}
1.5 修改啓動類

給啓動類添加註解異步

@EnableAsync
@EnableConfigurationProperties({TaskThreadPoolConfig.class} ) // 開啓配置屬性支持
1.6 測試
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());
    @Autowired
    private AsyncTask asyncTask;

    @Test
    public void AsyncTaskTest() throws InterruptedException, ExecutionException {

        for (int i = 0; i < 100; i++) {
            asyncTask.doTask1(i);
        }
        logger.info("All tasks finished.");
    }

2. 配置spring/springboot默認的異步線程池

由於上面的那個線程池使用時候總要加註解@Async("myTaskAsyncPool")，（會影響業務系統中的多處修改）async

若是咱們想使用默認的線程池，即便用異步線程池時仍是使用@Async的註解。可是隻是想修改默認線程池的配置，將默認的異步線程池的參數可配置化，方便系統的調優。那怎麼作了，此時咱們須要實現AsyncConfigurer類，示例代碼以下：ide

public interface AsyncConfigurer {
 
    Executor getAsyncExecutor();
    
    AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler();
 
}

說明：測試

Executor ： 處理異步方法調用時要使用的實例，this

AsyncUncaughtExceptionHandler ：在使用void返回類型的異步方法執行期間拋出異常時要使用的實例。spa

2.1 獲取屬性配置類

這個和上面的TaskThreadPoolConfig類相同，這裏不重複

2.2 NativeAsyncTaskExecutePool.java 裝配線程池
/**
 * 原生(Spring)異步任務線程池裝配類
 */
@Slf4j
@Configuration
public class NativeAsyncTaskExecutePool implements AsyncConfigurer {


    //注入配置類
    @Autowired
    TaskThreadPoolConfig config;

    @Override
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        //核心線程池大小
        executor.setCorePoolSize(config.getCorePoolSize());
        //最大線程數
        executor.setMaxPoolSize(config.getMaxPoolSize());
        //隊列容量
        executor.setQueueCapacity(config.getQueueCapacity());
        //活躍時間
        executor.setKeepAliveSeconds(config.getKeepAliveSeconds());
        //線程名字前綴
        executor.setThreadNamePrefix("MyExecutor-");

        // setRejectedExecutionHandler：當pool已經達到max size的時候，如何處理新任務
        // CallerRunsPolicy：不在新線程中執行任務，而是由調用者所在的線程來執行
        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.initialize();
        return executor;
    }


    /**
     *  異步任務中異常處理
     * @return
     */
    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return new AsyncUncaughtExceptionHandler() {

            @Override
            public void handleUncaughtException(Throwable arg0, Method arg1, Object... arg2) {
                log.error("=========================="+arg0.getMessage()+"=======================", arg0);
                log.error("exception method:"+arg1.getName());
            }
        };
    }
}
2.3 線程任務類AsyncTask .java
@Component
public class AsyncTask {
    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Async
    public void doTask2(int i) throws InterruptedException{
        logger.info("Task2-Native"+i+" started.");
    }
}
2.4 測試
    @Test
    public void AsyncTaskNativeTest() throws InterruptedException, ExecutionException {

        for (int i = 0; i < 100; i++) {
            asyncTask.doTask2(i);
        }

        logger.info("All tasks finished.");
    }
結果：
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-8] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native6 started.
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-3] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native1 started.
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native7 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native21 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native22 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native23 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native24 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native25 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native26 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native27 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native28 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native29 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native30 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native31 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native32 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native33 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native34 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native35 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native36 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native37 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native38 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native39 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native40 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native41 started.
2018-03-25 21:23:07.657  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native42 started.
2018-03-25 21:23:07.657  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native43 started.
2018-03-25 21:23:07.657  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native44 started.
2018-03-25 21:23:07.657  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native45 started.
2018-03-25 21:23:07.657  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native46 started.
2018-03-25 21:23:07.658  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native47 started.
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-7] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native5 started.
2018-03-25 21:23:07.658  INFO 4668 --- [   MyExecutor-7] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native49 started.
2018-03-25 21:23:07.658  INFO 4668 --- [   MyExecutor-7] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native50 started.
2018-03-25 21:23:07.658  INFO 4668 --- [  MyExecutor-11] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native9 started.
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native4 started.
2018-03-25 21:23:07.659  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native53 started.
2018-03-25 21:23:07.659  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native54 started.
2018-03-25 21:23:07.659  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native55 started.
2018-03-25 21:23:07.659  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native56 started.
2018-03-25 21:23:07.659  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native57 started.
2018-03-25 21:23:07.659  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native58 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native59 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native60 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native61 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native62 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native63 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native64 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native65 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native66 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native67 started.
2018-03-25 21:23:07.660  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native68 started.
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-5] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native3 started.
2018-03-25 21:23:07.655  INFO 4668 --- [   MyExecutor-4] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native2 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-8] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native19 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-2] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native0 started.
2018-03-25 21:23:07.656  INFO 4668 --- [   MyExecutor-3] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native20 started.
2018-03-25 21:23:07.657  INFO 4668 --- [  MyExecutor-10] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native8 started.
2018-03-25 21:23:07.658  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native48 started.
2018-03-25 21:23:07.658  INFO 4668 --- [   MyExecutor-7] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native51 started.
2018-03-25 21:23:07.658  INFO 4668 --- [  MyExecutor-11] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native52 started.
2018-03-25 21:23:07.658  INFO 4668 --- [  MyExecutor-12] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native10 started.
2018-03-25 21:23:07.661  INFO 4668 --- [  MyExecutor-13] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native11 started.
2018-03-25 21:23:07.662  INFO 4668 --- [  MyExecutor-14] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native12 started.
2018-03-25 21:23:07.662  INFO 4668 --- [  MyExecutor-15] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native13 started.
2018-03-25 21:23:07.663  INFO 4668 --- [  MyExecutor-16] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native14 started.
2018-03-25 21:23:07.663  INFO 4668 --- [  MyExecutor-17] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native15 started.
2018-03-25 21:23:07.663  INFO 4668 --- [  MyExecutor-18] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native16 started.
2018-03-25 21:23:07.663  INFO 4668 --- [  MyExecutor-19] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native17 started.
2018-03-25 21:23:07.664  INFO 4668 --- [  MyExecutor-20] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native18 started.
2018-03-25 21:23:07.664  INFO 4668 --- [  MyExecutor-21] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native69 started.
2018-03-25 21:23:07.664  INFO 4668 --- [           main] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native89 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-6] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native90 started.
2018-03-25 21:23:07.664  INFO 4668 --- [  MyExecutor-22] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native70 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-5] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native91 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-5] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native92 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-8] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native93 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-2] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native94 started.
2018-03-25 21:23:07.664  INFO 4668 --- [  MyExecutor-10] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native95 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-3] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native96 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-7] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native98 started.
2018-03-25 21:23:07.664  INFO 4668 --- [   MyExecutor-9] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native97 started.
2018-03-25 21:23:07.664  INFO 4668 --- [  MyExecutor-11] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native99 started.
2018-03-25 21:23:07.664  INFO 4668 --- [           main] com.laojiao.securitydemo.ControllerTest  : All tasks finished.
2018-03-25 21:23:07.666  INFO 4668 --- [  MyExecutor-23] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native71 started.
2018-03-25 21:23:07.667  INFO 4668 --- [  MyExecutor-24] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native72 started.
2018-03-25 21:23:07.667  INFO 4668 --- [  MyExecutor-25] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native73 started.
2018-03-25 21:23:07.669  INFO 4668 --- [  MyExecutor-26] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native74 started.
2018-03-25 21:23:07.669  INFO 4668 --- [  MyExecutor-27] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native75 started.
2018-03-25 21:23:07.673  INFO 4668 --- [  MyExecutor-28] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native76 started.
2018-03-25 21:23:07.674  INFO 4668 --- [  MyExecutor-29] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native77 started.
2018-03-25 21:23:07.674  INFO 4668 --- [  MyExecutor-30] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native78 started.
2018-03-25 21:23:07.676  INFO 4668 --- [  MyExecutor-31] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native79 started.
2018-03-25 21:23:07.677  INFO 4668 --- [  MyExecutor-32] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native80 started.
2018-03-25 21:23:07.677  INFO 4668 --- [  MyExecutor-33] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native81 started.
2018-03-25 21:23:07.677  INFO 4668 --- [  MyExecutor-34] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native82 started.
2018-03-25 21:23:07.678  INFO 4668 --- [  MyExecutor-35] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native83 started.
2018-03-25 21:23:07.679  INFO 4668 --- [  MyExecutor-36] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native84 started.
2018-03-25 21:23:07.679  INFO 4668 --- [  MyExecutor-37] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native85 started.
2018-03-25 21:23:07.679  INFO 4668 --- [  MyExecutor-38] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native86 started.
2018-03-25 21:23:07.680  INFO 4668 --- [  MyExecutor-39] c.l.securitydemo.mythreadpool.AsyncTask  : Task2-Native87 started.
2018-03-25 21:23:07.680  INFO 4668 --- [  MyExecutor-
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