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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);
}
}