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;