Thread类的getAllStackTraces（）方法获取虚拟机中所有线程的StackTraceElement对象，可以查看堆栈

Thread类的getAllStackTraces（）方法获取虚拟机中所有线程的StackTraceElement对象，可以查看堆栈

for (Map.Entry<Thread, StackTraceElement[]> stackTrace : Thread.getAllStackTraces().entrySet())
{
Thread thread = (Thread) stackTrace.getKey();
StackTraceElement[] stack = (StackTraceElement[]) stackTrace.getValue();
if (thread.equals(Thread.currentThread())) {
continue;
}
System.out.println("线程：" + thread.getName());
for (StackTraceElement stackTraceElement : stack) {
System.out.println(stackTraceElement);
}
}