线程Stack用法

private int getThreadCount(){
		int count = 0;
		Map<Thread, StackTraceElement[]> allStackTraces = Thread.getAllStackTraces();
		Set<Thread> keySet = allStackTraces.keySet();
		Iterator<Thread> iterator = keySet.iterator();
		while(iterator.hasNext()){
			Thread thread = iterator.next();
			if(thread.getName().equals("CrawlerThread")){
				count++;
			}
		}
		return count;
	}

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