Note that, the distributed executor service (IExecutorService) is intended to run processing where the data is hosted: on the server members. In general, you cannot run a Java Runnable or Callable on the clients as the clients may not be Java. Also, the clients do not host any data, so...
SECONDS); execService.shutdownNow(); } } Output 0 1 2 3 4 Example-2 Find the newSingleThreadExecutor() example with Callable. ExecutorDemo2.java package com.concretepage; import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent....
public static void main(String[] args) throws Exception { FutureTask[] randomNumberTasks = new FutureTask[5]; for (int i = 0; i < 5; i++) { Callable callable = new CallableExample(); randomNumberTasks[i] = new FutureTask(callable); Thread t = new Thread(randomNumberTasks[i]); t....
intpoolSize)throwsIOException{serverSocket=newServerSocket(port);pool=Executors.newFixedThreadPool(poolSize);}publicvoidrun(){// run the servicetry{for(;;){pool.execute(newHandler(serverSocket.accept()));}}catch(IOExceptionex){pool.shutdown();}}}classHandler...
service.submit(callable); } pool.shutdown();try{while(!pool.isTerminated()) {finalFuture<String> future = service.take(); System.out.println(future.get()); } }catch(ExecutionException | InterruptedException ex) { } Run Code Online (Sandbox Code Playgroud) ...
importjava.util.concurrent.*;publicclassExecutorCompletionServiceExample{publicstaticvoidmain(String[]args){// 创建一个线程池Executorexecutor=Executors.newFixedThreadPool(3);// 创建ExecutorCompletionServiceExecutorCompletionService<Integer>completionService=newExecutorCompletionService<>(executor);// 提交任务completionS...
Task类实现Callable接口并有一个String类型作为返回值的方法。 这个方法也可以抛出Exception。这种向 Executor 抛出异常的能力以及 Executor 将此异常返回给调用者的能力非常重要,因为它有助于调用者知道任务执行的状态。 现在让我们来执行一下这个任务: publicclassExecutorExample{publicstaticvoidmain(String[] args){Task...
Example #26Source File: ThreadPoolManager.java From smarthome with Eclipse Public License 2.0 5 votes protected void modified(Map<String, Object> properties) { for (Entry<String, Object> entry : properties.entrySet()) { if (entry.getKey().equals("service.pid") || entry.getKey().equals...
("com.example:type=ThreadPoolExecutor"); mbs.registerMBean(executor, name);// 提交任务并监控线程池状态for(inti=0; i <20; i++) { executor.execute(newTask("任务 "+ i)); }// 关闭线程池executor.shutdown();// 连接到JMX代理并获取线程池状态信息JMXServiceURLurl=newJMXServiceURL("service:...
可以使用 scheduleAtFixedRate 或 scheduleWithFixedDelay 在 ScheduledExecutor中定期的执行任务。 scheduledExecService.scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit) ...