计算调用速度的方法

一个计算调用速度的方法

	private static int speedCount = 0;
	private static long lastTime = 0;

	private static synchronized void countSpeed() {
		if (lastTime == 0) {
			lastTime = System.currentTimeMillis();
		} else {
			long now = System.currentTimeMillis();
			if (now - lastTime >= 5000) {
				lastTime = now;
				speedCount = 0;
			} else {
				speedCount++;
			}
		}
	}