本教程目录：

  1. 自定义线程池
  2. 配置spring默认的线程池

1. 自定义线程池

1.1 修改application.properties
task.pool.corePoolSize=

task.pool.maxPoolSize=

task.pool.keepAliveSeconds=

task.pool.queueCapacity=
1.2 线程池配置属性类TaskThreadPoolConfig .java
import org.springframework.boot.context.properties.ConfigurationProperties;

/**

 * 线程池配置属性类

 */

@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 创建线程池 TaskExecutePool .java
/**

 * 创建线程池

 */

@Configuration

@EnableAsync

public class TaskExecutePool {

    @Autowired

    private TaskThreadPoolConfig config;

    @Bean

    public Executor myTaskAsyncPool() {

        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();

        //核心线程池大小

        executor.setCorePoolSize(config.getCorePoolSize());

        //最大线程数

        executor.setMaxPoolSize(config.getMaxPoolSize());

        //队列容量

        executor.setQueueCapacity(config.getQueueCapacity());

        //活跃时间

        executor.setKeepAliveSeconds(config.getKeepAliveSeconds());

        //线程名字前缀

        executor.setThreadNamePrefix("MyExecutor-");

        // setRejectedExecutionHandler：当pool已经达到max size的时候，如何处理新任务

        // CallerRunsPolicy：不在新线程中执行任务，而是由调用者所在的线程来执行

        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
        executor.setWaitForTasksToCompleteOnShutdown(true);
         executor.setAwaitTerminationSeconds(60);
        executor.initialize();

        return executor;

    }

}

上面我们通过使用ThreadPoolTaskExecutor创建了一个线程池，同时设置了以下这些参数：

  • 核心线程数20：线程池创建时候初始化的线程数
  • 最大线程数40：线程池最大的线程数，只有在缓冲队列满了之后才会申请超过核心线程数的线程
  • 缓冲队列50：用来缓冲执行任务的队列
  • 允许线程的空闲时间300秒：当超过了核心线程出之外的线程在空闲时间到达之后会被销毁
  • 线程池名的前缀：设置好了之后可以方便我们定位处理任务所在的线程池
  • 线程池对拒绝任务的处理策略：这里采用了CallerRunsPolicy策略，当线程池没有处理能力的时候，该策略会直接在 execute 方法的调用线程中运行被拒绝的任务；如果执行程序已关闭，则会丢弃该任务

（ThreadPoolExecutor.AbortPolicy 丢弃任务并抛出RejectedExecutionException异常(默认)。
ThreadPoolExecutor.DiscardPolic 丢弃任务，但是不抛出异常。
ThreadPoolExecutor.DiscardOldestPolicy 丢弃队列最前面的任务，然后重新尝试执行任务
ThreadPoolExecutor.CallerRunsPolic 由调用线程处理该任务）

说明：setWaitForTasksToCompleteOnShutdown（true）该方法就是这里的关键，用来设置线程池关闭的时候等待所有任务都完成再继续销毁其他的Bean，这样这些异步任务的销毁就会先于Redis线程池的销毁。同时，这里还设置了setAwaitTerminationSeconds(60)，该方法用来设置线程池中任务的等待时间，如果超过这个时候还没有销毁就强制销毁，以确保应用最后能够被关闭，而不是阻塞住。

1.4 创建线程任务
@Component

public class AsyncTask {

    protected final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Async("myTaskAsyncPool")  //myTaskAsynPool即配置线程池的方法名，此处如果不写自定义线程池的方法名，会使用默认的线程池

    public void doTask1(int i) throws InterruptedException{

        logger.info("Task"+i+" started.");

    }

}
1.5 修改启动类

给启动类添加注解

@EnableAsync

@EnableConfigurationProperties({TaskThreadPoolConfig.class} ) // 开启配置属性支持
1.6 测试
    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默认的异步线程池

因为上面的那个线程池使用时候总要加注解@Async("myTaskAsyncPool")，（会影响业务系统中的多处修改）

如果我们想使用默认的线程池，即使用异步线程池时还是使用@Async的注解。但是只是想修改默认线程池的配置，将默认的异步线程池的参数可配置化，方便系统的调优。那怎么做了，此时我们需要实现AsyncConfigurer类，示例代码如下：

public interface AsyncConfigurer {

    Executor getAsyncExecutor();

    AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler();

}

说明：

Executor ： 处理异步方法调用时要使用的实例，

AsyncUncaughtExceptionHandler ：在使用void返回类型的异步方法执行期间抛出异常时要使用的实例。

2.1 获取属性配置类

这个和上面的TaskThreadPoolConfig类相同，这里不重复

2.2 NativeAsyncTaskExecutePool.java 装配线程池
/**

 * 原生(Spring)异步任务线程池装配类

 */

@Slf4j

@Configuration

public class NativeAsyncTaskExecutePool implements AsyncConfigurer {

    //注入配置类

    @Autowired

    TaskThreadPoolConfig config;

    @Override

    public Executor getAsyncExecutor() {

        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();

        //核心线程池大小

        executor.setCorePoolSize(config.getCorePoolSize());

        //最大线程数

        executor.setMaxPoolSize(config.getMaxPoolSize());

        //队列容量

        executor.setQueueCapacity(config.getQueueCapacity());

        //活跃时间

        executor.setKeepAliveSeconds(config.getKeepAliveSeconds());

        //线程名字前缀

        executor.setThreadNamePrefix("MyExecutor-");

        // setRejectedExecutionHandler：当pool已经达到max size的时候，如何处理新任务

        // CallerRunsPolicy：不在新线程中执行任务，而是由调用者所在的线程来执行

        executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());

        executor.initialize();

        return executor;

    }

    /**

     *  异步任务中异常处理

     * @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 线程任务类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 测试
    @Test

    public void AsyncTaskNativeTest() throws InterruptedException, ExecutionException {

        for (int i = 0; i < 100; i++) {

            asyncTask.doTask2(i);

        }

        logger.info("All tasks finished.");

    }
结果：
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-
 

SpringBoot 自定义线程池的更多相关文章

  1. SpringBoot—自定义线程池及并发定时任务模板

    介绍   在项目开发中,经常遇到定时任务,今天通过自定义多线程池总结一下SpringBoot默认实现的定时任务机制. 定时任务模板 pom依赖 <dependencies> <dep ...

  2. SpringBoot自定义线程池处理异步任务

    @Async异步调用 就不解释什么是异步调用了,Spring Boot中进行异步调用很简单 1.通过使用@Async注解就能简单的将原来的同步函数变为异步函数 package com.winner.s ...

  3. SpringBoot 自定义线程池，多线程

    原文:https://www.jianshu.com/p/832f2b162450 我们都知道spring只是为我们简单的处理线程池,每次用到线程总会new 一个新的线程,效率不高,所以我们需要自定义 ...

  4. Spring Boot使用@Async实现异步调用：自定义线程池

    前面的章节中,我们介绍了使用@Async注解来实现异步调用,但是,对于这些异步执行的控制是我们保障自身应用健康的基本技能.本文我们就来学习一下,如果通过自定义线程池的方式来控制异步调用的并发. 定义线 ...

  5. 转载-SpringBoot结合线程池解决多线程问题实录；以及自己的总结

    原文地址:https://blog.csdn.net/GFJ0814/article/details/92422245 看看这篇文章(继续学习):https://www.jianshu.com/p/3 ...

  6. Android线程管理之ThreadPoolExecutor自定义线程池

    前言: 上篇主要介绍了使用线程池的好处以及ExecutorService接口,然后学习了通过Executors工厂类生成满足不同需求的简单线程池,但是有时候我们需要相对复杂的线程池的时候就需要我们自己 ...

  7. Android AsyncTask 深度理解、简单封装、任务队列分析、自定义线程池

    前言:由于最近在做SDK的功能,需要设计线程池.看了很多资料不知道从何开始着手,突然发现了AsyncTask有对线程池的封装,so,就拿它开刀,本文将从AsyncTask的基本用法,到简单的封装,再到 ...

  8. Android 自定义线程池的实战

    前言:在上一篇文章中我们讲到了AsyncTask的基本使用.AsyncTask的封装.AsyncTask 的串行/并行线程队列.自定义线程池.线程池的快速创建方式. 对线程池不了解的同学可以先看 An ...

  9. c#网络通信框架networkcomms内核解析之十 支持优先级的自定义线程池

    NetworkComms网络通信框架序言 本例基于networkcomms2.3.1开源版本  gplv3协议 如果networkcomms是一顶皇冠,那么CommsThreadPool(自定义线程池 ...

随机推荐

  1. Java——IO类，转换流简化写法

    body, table{font-family: 微软雅黑} table{border-collapse: collapse; border: solid gray; border-width: 2p ...

  2. L1-001 Hello World

    这道超级简单的题目没有任何输入. 你只需要在一行中输出著名短句“Hello World!”就可以了. 输入样例: 无 输出样例: Hello World! #include<stdio.h> ...

  3. Matlab量化函数quantiz解析

    在Matlab里,有一个量化函数quantiz,其函数形式有以下三种: 输入变量: sig代表的是原始信号; codebook代表的是量化值的集合; partition是分割向量,代表对量化范围分割等 ...

  4. Windows系统80端口被占用

    1.查看系统端口被占用情况, 执行命令netstat -ano ,可以查看到被占用的端口对于的PID. 2. 打开任务管理器,然后点击“查看”→“选择PID”,勾上PID,再按PID排序,即可以看到8 ...

  5. 《利用Python进行数据分析》笔记---第6章数据加载、存储与文件格式

    写在前面的话: 实例中的所有数据都是在GitHub上下载的,打包下载即可. 地址是:http://github.com/pydata/pydata-book 还有一定要说明的: 我使用的是Python ...

  6. HDU 1853

    http://acm.hdu.edu.cn/showproblem.php?pid=1853 和下题一模一样,求一个图环的并,此题的题干说的非常之裸露 http://www.cnblogs.com/x ...

  7. MySQL性能优化方法四：SQL优化

    原文链接:http://isky000.com/database/mysql-performance-tuning-sql 注:这篇文章是以 MySQL 为背景,很多内容同时适用于其他关系型数据库,需 ...

  8. 如何修改magento产品详细页面的栏目

    magento默认模板里面的产品信息页面的布局是以两栏带右侧栏显示的,那么如何修改为两栏带左侧栏或者三栏.一栏的方式显示呢?下面教大家一种很简单的方法就可以实现.下面是默认的布局预览:

  9. 空格填充器(alignBySpace)

    /******************************************************************* * 空格填充器(alignBySpace) * 声明: * 1 ...

  10. 打乱一个文件 shuf

    $ shuf --help 用法: shuf [选项]... [文件] 或者: shuf -e [选项]... [参数]... 或者: shuf -i LO-HI [选项]... 把输入行按随机顺序输 ...