java-堆栈打印

public static void printCallStack() {
	printCallStack(0);
}

public static void printCallStack(int elementMax) {
	printCallStack(elementMax, true);
}

/**
 * 打印堆栈
 *
 * @param elementMax    打印的调用链数, 默认0: 无限制
 * @param currentThread 是否仅当前线程, 默认true
 */
public static void printCallStack(int elementMax, boolean currentThread) {
	if (currentThread) {
		StackTraceElement[] stackElements = Thread.currentThread().getStackTrace();
		printElement(elementMax, stackElements);
		return;
	}
	Map<Thread, StackTraceElement[]> stackElementsMap = Thread.getAllStackTraces();
	for (Map.Entry<Thread, StackTraceElement[]> entry : stackElementsMap.entrySet()) {
		String threadName = entry.getKey().getName();
		StackTraceElement[] elements = entry.getValue();
		System.out.println("thread name: " + threadName);
		printElement(elementMax, elements);
	}
}

private static void printElement(int elementMax, StackTraceElement[] stackElements) {
	if (stackElements == null) {
		return;
	}
	int num = 0;
	for (StackTraceElement element : stackElements) {
		if (elementMax != 0 && num >= elementMax) {
			return;
		}
		String msg = "%s(%s:%s)-%s()";
		msg = String.format(msg, element.getClassName(), element.getFileName(), element.getLineNumber(), element.getMethodName());
		System.out.println(msg);
		num++;
	}
}

Thread.getAllStackTraces();

@Test
public void showStackTrace() {
	printCallStack(10);
//  printCallStack(10, false);
}