JAVA_创建线程任务获取任务返回结果FutureTask

1.实现Callable接口类

package com.lius.futureTask;import java.util.List;import java.util.concurrent.Callable;import java.util.stream.Collectors;//创建Callable接口实现类public class callableClass implements Callable
    
      {	private List
     
       listInt = null;		public callableClass(List
      
        listInt) {		super();		this.listInt = listInt;	}	@Override	public Long call() throws Exception {		// TODO Auto-generated method stub		return listInt.stream().collect(Collectors.counting());	}}

2.创建FutureTask线程任务

package com.lius.futureTask;import java.util.Arrays;import java.util.concurrent.ExecutionException;import java.util.concurrent.FutureTask;import java.util.logging.Logger;//FutureTask  执行线程，线程执行完毕返回执行结果（可用于耗时较长的任务，增加系统流畅度）public class futureTask {		private Logger logger = Logger.getLogger(Thread.currentThread().getName());	public void start() {				callableClass callableClass = new callableClass(Arrays.asList(1,3,5,6,7,8,11,21));		FutureTask
    
      future = new FutureTask
     
      (callableClass);   		new Thread(future).start();		try {			logger.info(future.get().toString());		} catch (InterruptedException | ExecutionException e) {			// TODO Auto-generated catch block			e.printStackTrace();		}					}}

3.测试代码

package com.lius.test;import org.junit.Test;import com.lius.futureTask.futureTask;//测试类public class testFutureTask {	@Test	public void test01() {		new futureTask().start();	}}

4.测试结果

七月 25, 2020 12:37:38 上午 com.lius.futureTask.futureTask start信息: 8

转载地址：http://cinq.baihongyu.com/

你可能感兴趣的文章