java模拟多线程

public class HTTPRequest  implements Runnable {

public void run() {

//这里实现发送请求

}

public static void main(String[] args) {

ExecutorService service = Executors.newFixedThreadPool(50);

for (int i = 0; i < 50; i++)

service.execute(new HTTPRequest ());//并发50个用户

…

}

}