JAVA ThreadPool & ThreadFactory

骑猪看日落 2022-08-12 08:58 103阅读 0赞

package threadPool;
    
    import java.util.concurrent.ThreadFactory;
    import java.util.concurrent.atomic.AtomicInteger;
    
    /**
     * @ClassName: BasicThreadFactory
     * @Description: TODO
     * @author Zhou Shengshuai
     * @date 2014年9月22日 上午10:09:30
     * 
     */
    public class BasicThreadFactory implements ThreadFactory {
    	private final ThreadGroup threadGroup;
    	private final AtomicInteger threadNumber = new AtomicInteger(1);
    	private final String threadNamePrefix;
    
    	/**
    	 * 构造函数
    	 * 
    	 * @param threadPoolName
    	 *            线程池名称
    	 */
    	public BasicThreadFactory(String threadPoolName) {
    		SecurityManager securityManager = System.getSecurityManager();
    
    		threadGroup = (securityManager != null) ? securityManager.getThreadGroup() : Thread.currentThread().getThreadGroup();
    
    		threadNamePrefix = threadPoolName + "-thread-";
    	}
    
    	/**
    	 * 创建线程
    	 */
    	@Override
    	public Thread newThread(Runnable runnable) {
    		Thread thread = new Thread(threadGroup, runnable, threadNamePrefix + threadNumber.getAndIncrement(), 0);
    
    		if (thread.isDaemon()) {
    			thread.setDaemon(false);
    		}
    
    		if (thread.getPriority() != Thread.MAX_PRIORITY) {
    			thread.setPriority(Thread.MAX_PRIORITY);
    		}
    
    		return thread;
    	}
    }

package threadPool;
    
    /**
     * @ClassName: BasicThreadTask
     * @Description: TODO
     * @author Zhou Shengshuai
     * @date 2014年9月22日 上午10:12:02
     * 
     */
    public class BasicThreadTask implements Runnable {
    
    	@Override
    	public void run() {
    		System.out.println(Thread.currentThread().getName());
    	}
    
    }

package threadPool;
    
    import java.util.concurrent.Executors;
    import java.util.concurrent.ThreadPoolExecutor;
    
    /**
     * @ClassName: MainThreadTask
     * @Description: TODO
     * @author Zhou Shengshuai
     * @date 2014年9月22日 上午10:14:34
     * 
     */
    public class MainThreadTask {
    	private ThreadPoolExecutor threadPoolExecutor = null;
    
    	public void initial() {
    		threadPoolExecutor = (ThreadPoolExecutor) Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors(), new BasicThreadFactory("BasicThreadFactory"));
    	}
    
    	public void execute() {
    		for (int index = 0; index < 10; index++) {
    			threadPoolExecutor.execute(new BasicThreadTask());
    		}
    	}
    
    	public void destroy() {
    		threadPoolExecutor.shutdown();
    	}
    
    	/**
    	 * @Title: main
    	 * @Description: TODO
    	 * @param args
    	 * @throws
    	 */
    	public static void main(String[] args) {
    		MainThreadTask mainThreadTask = new MainThreadTask();
    
    		mainThreadTask.initial();
    		mainThreadTask.execute();
    		mainThreadTask.destroy();
    	}
    
    }