javaThreadPoolExecutor并发调用实例详解-创新互联

java ThreadPoolExecutor 并发调用实例详解

概述

通常为了提供任务的处理速度,会使用一些并发模型，ThreadPoolExecutor中的invokeAll便是一种。

代码

package test.current;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;

public class TestCallable {

  public static void main(String[] args) throws InterruptedException, ExecutionException {

    List>> tasks = new ArrayList<>();
    for (int i = 0; i < 10; i++) {
      Callable> task = new Callable>() {
        @Override
        public List call() throws Exception {
          return Arrays.asList(1L,2L);
        }
      };

      tasks.add(task);
    }

    List finalResults = new ArrayList<>(10);
    List>> results = ThreadPool.getThreadPool().invokeAll(tasks);
    for(Future> ele : results) {
      List list = ele.get();
      finalResults.addAll(list);
    }

    System.out.println(finalResults);
  }
}