spring-线程池（3）

一、初始化

1，直接调用

import java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy;

import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

/**

 * Hello world!

 *

 */

public class App

{

    public static void main( String[] args )

    {

        ThreadPoolTaskExecutor poolTaskExecutor = new ThreadPoolTaskExecutor();

        //线程池所使用的缓冲队列

        poolTaskExecutor.setQueueCapacity(10);

        //线程池维护线程的最少数量

        poolTaskExecutor.setCorePoolSize(2);

        //线程池维护线程的最大数量

        poolTaskExecutor.setMaxPoolSize(3);

        //线程池维护线程所允许的空闲时间

        poolTaskExecutor.setKeepAliveSeconds(300);

        poolTaskExecutor.setRejectedExecutionHandler(new CallerRunsPolicy());

        poolTaskExecutor.initialize();

        for (int i = 0; i < 25; i++) {

            MessagePrinterTask m=new MessagePrinterTask("Message" + i);

            poolTaskExecutor.execute(m);

            System.out.println("add Thread："+i);

        }

    }

}

结果是

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" 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