ThreadMXBean定位CPU占用过高JSP

使用该JSP页面即可打印出虚拟机当前进程所执行的代码，该代码来自新浪云。

<%@page import="java.util.ArrayList"%>
<%@page import="java.lang.management.ThreadInfo"%>
<%-- <%@page import="com.sina.sae.util.SaeUserInfo"%> --%>
<%@page import="java.text.SimpleDateFormat"%>
<%@page import="java.util.Arrays"%>
<%@page import="java.lang.management.ThreadMXBean"%>
<%@page import="java.lang.management.CompilationMXBean"%>
<%@page import="java.lang.management.OperatingSystemMXBean"%>
<%@page import="java.lang.management.GarbageCollectorMXBean"%>
<%@page import="java.util.List"%>
<%@page import="java.lang.management.MemoryUsage"%>
<%@page import="java.lang.management.MemoryMXBean"%>
<%@page import="java.lang.management.ClassLoadingMXBean"%>
<%@page import="java.lang.management.RuntimeMXBean"%>
<%@page import="java.lang.management.ManagementFactory"%>
<%@page import="java.util.Date"%>
<%@ page language="java"   pageEncoding="utf-8"%>













<%
	RuntimeMXBean rMXBean = ManagementFactory.getRuntimeMXBean();
	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
	List aGCMXBeans = ManagementFactory.getGarbageCollectorMXBeans();
	
	String [] node = rMXBean.getName().split("@");//节点名称
 	String nodename = node[node.length-1];
 	String currentNode = nodename+request.getLocalPort();
	long cputime = threadMXBean.getCurrentThreadCpuTime()/1000000;//cpu时间
	long livethread = threadMXBean.getThreadCount();//活动线程数
	long topthread = threadMXBean.getPeakThreadCount();//峰值线程数
	long deamonthread = threadMXBean.getDaemonThreadCount();//守护线程数
	long totalthread = threadMXBean.getTotalStartedThreadCount();//创建线程总数
	long [] ids = threadMXBean.getAllThreadIds();//所有线程ID号
	//计算各类状态线程数量
	long newcount=0,runcount=0,blockedcount=0,waitingcount=0,twaitcount=0,terminatedcount=0;
	List threads = new ArrayList(); 
	for(int i=0;i



	

    	

<%--         	
Sina App Engine Java  -    <%=SaeUserInfo.getAppName()%>
 --%>
   	 		

            	

                	
Overview
                	
Application
                    
Monitor
                	
Memory
                    
Threads
              
          	
      
        

            

             

                    

                        <%-- Threads  -  <%=SaeUserInfo.getAppName() %> --%>
                        Refresh All 
                        

                    
				    

				   		节点名称: <%=nodename %>
				    	                
				   		线程CPU时间: <%=cputime %> ms 
				   	
		   	

		   	
			  

                    

                        Overview 
                        

                    
				    

				    	
				    	创建线程总数: <%=totalthread %>
				    	           
				    	 活动线程数: <%=livethread %>
				    	                
				    	峰值线程数：<%=topthread %> 
				    	                
				    	守护线程数: <%=deamonthread %> 
				    	
				    	


				    	NEW 线程: <%=newcount  %> 
				    	                
				    	RUNNABLE 线程: <%=runcount %>
				    	                
				    	BLOCKED 线程: <%=blockedcount %>
				    	                
				    	WATTING 线程: <%=waitingcount %>
				    	                
				    	TIMED_WATTING 线程: <%=twaitcount %>
				    	                
				    	TERMINATED 线程: <%=terminatedcount %>
				    	

                    

                    
                			<%
                				String color ="";
                				for(int i=0;i
                    			
	                    			<%if(i==0) {%>
	                    			
	                    			<% }%>
                    			
                           			<%
                           				}
                           			%>
                     

                  	

						

                          	
  Thread Name 
                              
 Thread Info
                        
					
					

	                    			
 
	                     			
	                     				 <%=threadName %>
	                     			
	                    			

	                    				 

	                    				 	请求节点:  <%=node[node.length-1] %>


	                    				 	线程名称:  <%= threadInfo.getThreadName()%>


	                    				 	线程状态:  <%=threadInfo.getThreadState() %> 
	                    				 	      
	                    				 	CPU时间: <%=threadMXBean.getThreadCpuTime(threadInfo.getThreadId())/(1000*1000) %> ms
	                    				 	      
	                    				 	阻塞总数:  <%= threadInfo.getBlockedCount()%>
	                    				 	      
	                    				 	等待总数:  <%= threadInfo.getWaitedCount()%>


	                    				 	堆栈跟踪:  


	                    				 	<% for (StackTraceElement e : threadInfo.getStackTrace()){%>
	                    				 		 <%=e.toString()+"
" %>
	                    				 	<%} %>