public class ExecutorTest2 {
private static final int loopNum = 1*10;
public static void main(String args[]) throws InterruptedException {
ExecutorTest2 TestThreadPool = new ExecutorTest2();
long bt = System.currentTimeMillis();
TestThreadPool.m1();
long et2 = System.currentTimeMillis();
System.out.println("线程池耗时:"+(et2 - bt)+ "ms");
long at = System.currentTimeMillis();
TestThreadPool.m2();
long et3 = System.currentTimeMillis();
System.out.println("main耗时:"+(et3 - at)+ "ms");
}
public void m1() {
StopWatch stopWatch = new StopWatch();
stopWatch.start();
ExecutorService pool = Executors.newCachedThreadPool();
for (int index = 0; index < loopNum; index++) {
Runnable run = new Runnable() {
public void run() {
try {
new Thread().sleep(1000); //模拟耗时操作
//System.out.println("[1]" + Thread.currentThread().getName());
} catch (Exception e) {
}
}
};
pool.execute(run);
}
System.out.println("[1] done!");
pool.shutdown();
stopWatch.stop();
System.out.println("main线程 done!"+stopWatch.prettyPrint());
}
public void m2() {
StopWatch stopWatch = new StopWatch();
stopWatch.start();
AtomicInteger connectionIds = new AtomicInteger(0);
for (int index = 0; index < loopNum; index++) {
try {
new Thread().sleep(1000); //模拟耗时操作
} catch (Exception e) {
e.printStackTrace();
}
}
stopWatch.stop();
System.out.println("main线程 done!"+stopWatch.prettyPrint());
}
}
线程池耗时:289ms
main耗时:10253ms复制代码本文章为转载内容，我们尊重原作者对文章享有的著作权。如有内容错误或侵权问题，欢迎原作者联系我们进行内容更正或删除文章。
