打印当前java程序的线程堆栈详解编程语言

打印当前java程序的线程堆栈    

 ThreadMXBean bean = ManagementFactory.getThreadMXBean(); 
 Map < Thread, StackTraceElement[] > traceMap = Thread.getAllStackTraces(); 
 Set < Thread > allThreads = traceMap.keySet(); 
 for (Thread thread: allThreads) { 
     StringBuilder msg = new StringBuilder(); 
     long tid = thread.getId(); 
     ThreadInfo threadInfo = bean.getThreadInfo(tid); 
     if(threadInfo == null){ 
     	continue; 
     } 
     String lockInfo = threadInfo.getLockName() == null ? " " : ", " + threadInfo.getLockName(); 
     msg.append("thread id: " + tid + ", name: " + threadInfo.getThreadName() + ", " + threadInfo.getThreadState() + lockInfo).append("/n"); 
     StackTraceElement[] stackTraces = thread.getStackTrace(); 
     for (StackTraceElement stackTrace: stackTraces) { 
         msg.append("/t").append(stackTrace).append("/n"); 
     } 
     System.out.println(msg); 
 }