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JDK线程池和Spring线程池的使用实例解析

2024-07-09 22:42:04
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这篇文章主要介绍了JDK线程池和Spring线程池的使用实例解析,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

JDK线程池和Spring线程池实例,异步调用,可以直接使用

(1)JDK线程池的使用,此处采用单例的方式提供,见示例:

public class ThreadPoolUtil {	private static int corePoolSize = 5;	private static int maximumPoolSize = 10;	private static long keepAliveTime = 60L;	private static TimeUnit unit = TimeUnit.SECONDS;	private static int capacity = 1024;	private static ThreadFactory namedThreadFactory = new ThreadFactoryBuilder().setNameFormat("jdk-thread-pool-%d").build();	private static final ExecutorService executorService = new ThreadPoolExecutor(corePoolSize,	maximumPoolSize,	keepAliveTime,	unit,	new LinkedBlockingQueue<>(capacity),	namedThreadFactory,	new ThreadPoolExecutor.AbortPolicy());	private ThreadPoolUtil () {	}	public static ExecutorService getExecutorService () {		return executorService;	}}

在其它地方可以直接这样使用:

ThreadPoolUtil.getExecutorService().execute(() -> {	System.out.println("test1");	System.out.println("test2");})

(2)Spring线程池的使用,此处通过配置类的方式配置线程池的相关属性,见示例:

@Configuration@EnableAsyncpublic class DocataThreadBeanConfig {	private int corePoolSize = 5;	private int maxPoolSize = 10;	private int queueCapacity = 1024;	private String namePrefix = "async-service-task-";	// 上述属性可以通过@Value来读取配置值	@Bean(name = "asyncServiceTaskExecutor")	public TaskExecutor asyncServiceExecutor() {		ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();		// 设置核心线程数		executor.setCorePoolSize(corePoolSize);		// 设置最大线程数		executor.setMaxPoolSize(maxPoolSize);		// 设置队列容量		executor.setQueueCapacity(queueCapacity);		// 设置线程活跃时间(秒)		executor.setKeepAliveSeconds(60);		// 设置默认线程名称		executor.setThreadNamePrefix(namePrefix);		// 设置拒绝策略		executor.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());		// 等待所有任务结束后再关闭线程池		executor.setWaitForTasksToCompleteOnShutdown(true);		executor.initialize();		;		return executor;	}}

在其它文件中需要这样使用:

@Resource(name="asyncServiceTaskExecutor")private ThreadPoolTaskExecutor asyncServiceTaskExecutor;

不要直接使用@Autowired,否则会提示失败的

@Autowiredprivate ThreadPoolTaskExecutor asyncServiceTaskExecutor;

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持武林网之家。

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