Spring線程池ThreadPoolTaskExecutor

 

1.配置：

<!-- spring thread pool executor -->           
    <bean id="taskExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
        <!-- 線程池維護線程的最少數量 -->
        <property name="corePoolSize" value="5" />
        <!-- 允許的空閒時間 -->
        <property name="keepAliveSeconds" value="200" />
        <!-- 線程池維護線程的最大數量 -->
        <property name="maxPoolSize" value="10" />
        <!-- 緩存隊列 -->
        <property name="queueCapacity" value="20" />
        <!-- 對拒絕task的處理策略 -->
        <property name="rejectedExecutionHandler">
            <bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" />
        </property>
    </bean>

 

/**
 *多線程併發處理demo
 * @author stone
 */
public class MultiThreadDemo implements Runnable{
    @Override
    public void run() {
        System.out.println("success");
    }
}

@Component
public class Test {

    @Resource
    private ThreadPoolTaskExecutor taskExecutor;

    public void test(){
        taskExecutor.execute(new MultiThreadDemo());
    }

2.構建bean方式

@Component
@Scope
public class PresaleFailExecutePoll {

    //    @Value(value = "${presale.core.poll.size}")
    private int corePoolSize = 20;
    //    @Value(value = "${presale.max.poll.size}")
    private int maxPoolSize = 40;
    //    @Value(value = "${presale.quenue.capacity}")
    private int queueCapacity = 50;
    //    @Value(value = "${presale.keep.alive.seconds}")
    private int keepAliveSeconds = 300;

    @Bean
    public Executor presaleFailAsyncPool() {

        System.out.println("The presaleFailAsyncPool start to initialize ...");
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        //核心線程池大小
        executor.setCorePoolSize(corePoolSize);
        //最大線程數
        executor.setMaxPoolSize(maxPoolSize);
        //隊列容量
        executor.setQueueCapacity(queueCapacity);
        // 活躍時間
        executor.setKeepAliveSeconds(keepAliveSeconds);
        // 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;
    }

}

 @Async("presaleFailAsyncPool") //即配置線程池的方法名，此處如果不寫自定義線程池的方法名，會使用默認的線程池
public void delPresaleOrder(Long shuttleId) {

}