java.util.concurrent.Executor接口是支持启动新任务的一个简单接口。
Executor接口中的方法
| 序号 | 方法 | 描述 |
|---|---|---|
| 1 | void execute(Runnable command) |
在将来的某个时间执行给定的命令。 |
实例
以下TestThread程序显示了如何在基于线程的环境中Executor接口的用法。
import java.util.concurrent.Executor
import java.util.concurrent.Executors
import java.util.concurrent.ThreadPoolExecutor
import java.util.concurrent.TimeUnit
public class TestThread {
public static void main(final String[] arguments) throws InterruptedException {
Executor executor = Executors.newCachedThreadPool()
executor.execute(new Task())
ThreadPoolExecutor pool = (ThreadPoolExecutor)executor
pool.shutdown()
}
static class Task implements Runnable {
public void run() {
try {
Long duration = (long) (Math.random() * 5)
System.out.println("Running Task!")
TimeUnit.SECONDS.sleep(duration)
System.out.println("Task Completed")
}
catch (InterruptedException e) {
e.printStackTrace()
}
}
}
}
执行上面代码，得到如下结果 -
Running Task!
Task Completed