一：Window7下配置方式。
1、配置catalina.bat 在第一行加入下面配置 注意下面这些配置要在一行，注意包含空格。
set JAVA_OPTS=-Dcom.sun.management.jmxremote -Djava.rmi.server.hostname=192.168.10.126 -Dcom.sun.management.jmxremote.port=9008 -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password -Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access
-Djava.rmi.server.hostname=xxx.xxx.xxx.xxx 主机地址，内网就写内网地址，外网就写外网地址。
-Dcom.sun.management.jmxremote.port=xxx 端口号、配置完端口号之后需要将此端口开放出来，注意防火墙拦截。
-Dcom.sun.management.jmxremote.authenticate=true是否开启认证、false的时候可以不使用密码访问。
如果不开启认证，下面配置可以省略。
以下配置是开启认证时使用的access文件和password文件。
-Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password
-Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access
2、拷贝授权文件，这二个文件在 \jdk1.7.0_07\jre\lib\management 文件夹下有模板文件，拷贝一份.放到tomcat/conf文件夹下面。
jmxremote.access
monitorRole readonly controlRole readwrite create javax.management.monitor.*,javax.management.timer.* unregister
jmxremote.password
monitorRole admin123 controlRole admin321
3、给密码文件授权,不然tomcat startup.bat闪退.
需要修改jmxremote.password文件的访问权限，只有运行Tomcat的用户才能拥有访问权限 ：Windows的NTFS文件系统下，选中文件，点右键 -->“属性”-->“安全”--> 点“高级”--> 点“更改权限”--> 去掉“从父项继承....”--> 弹出窗口中选“删除”，这样就删除了所有访问权限。再选“添加”--> “高级”--> “立即查找”，选中你的用户（或用户组，如果选用户不行那就选用户组），例administrator，点“确定"，“确定"。来到权限项目窗口，勾选“完全控制”，点“确定”，OK了。
4、重新启动Tomcat，在Windows命令行输入“ntstat -a”查看配置的端口号是否已打开，如果打开，说明上面的配置成功了。
二：Linxu下配置
1、配置startup.sh
export CATALINA_OPTS="$CATALINA_OPTS -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9008 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=true -Djava.rmi.server.hostname=136.16.19.82 -Dcom.sun.management.jmxremote.password.file=../conf/jmxremote.password -Dcom.sun.management.jmxremote.access.file=../conf/jmxremote.access"
把上面的配置加在 exec "$PRGDIR"/"$EXECUTABLE" start "[email protected]" 这句话的前面。
2、制作授权文件和windows上面说的一样。
3、授权 chmod600jmx* 给文件授权，不然tomcat无法启动。
4、重新启动tomcat 在输入命令 netstat -an | grep 9008 查看端口是否被占用，如果占用，说明上面的配置成功了。
三、Java代码调用
1 package com;
2
3 import java.io.IOException;
4 import java.lang.management.ClassLoadingMXBean;
5 import java.lang.management.ManagementFactory;
6 import java.lang.management.MemoryMXBean;
7 import java.lang.management.MemoryUsage;
8 import java.lang.management.OperatingSystemMXBean;
9 import java.lang.management.ThreadMXBean;
10 import java.net.MalformedURLException;
11 import java.util.HashMap;
12 import java.util.Map;
13 import java.util.Timer;
14 import java.util.TimerTask;
15 import java.util.concurrent.TimeUnit;
16
17 import javax.management.AttributeNotFoundException;
18 import javax.management.InstanceNotFoundException;
19 import javax.management.MBeanException;
20 import javax.management.MBeanServerConnection;
21 import javax.management.ReflectionException;
22 import javax.management.remote.JMXConnector;
23 import javax.management.remote.JMXConnectorFactory;
24 import javax.management.remote.JMXServiceURL;
25
26 public class T {
27
28 //private final static String SERVICE_1 = "service:jmx:rmi:///jndi/rmi://xxx.xxx.xxx.xxx:9008/jmxrmi";
29 private final static String SERVICE_1 = "service:jmx:rmi:///jndi/rmi://xxx.xxx.xxx.xxx:9008/jmxrmi";
30
31 /**
32 * @param args
33 */
34 public static void main(String[] args) {
35
36 // 10秒调用一次
37 Timer timer = new Timer();
38 timer.schedule(new T().new MonitorTask(SERVICE_1), 0, 10000);
39
40 }
41
42 private class MonitorTask extends TimerTask {
43
44 private String service;
45
46 public MonitorTask(String service) {
47 this.service = service;
48 }
49
50 @Override
51 public void run() {
52
53 JMXmonitor(service);
54 }
55
56 }
57
58 private static void JMXmonitor(String service) {
59 JMXConnector jmxConnector = null;
60
61 try {
62 JMXServiceURL ServiceURL = new JMXServiceURL(service);
63 Map<String, String[]> environment = new HashMap<String, String[]>();
64 // 用户名密码，在jmxremote.password文件中的密码
65 String[] credentials = new String[] {"controlRole", "admin321"};
66 environment.put("jmx.remote.credentials", credentials);
67 jmxConnector = JMXConnectorFactory.connect(ServiceURL, environment);
68
69 MBeanServerConnection mBeanServerConnection = jmxConnector
70 .getMBeanServerConnection();
71
72 // 获取MemoryMXBean
73 System.out.println("\nMemory");
74 MemoryMXBean memoryMXBean = ManagementFactory
75 .newPlatformMXBeanProxy(mBeanServerConnection,
76 ManagementFactory.MEMORY_MXBEAN_NAME,
77 MemoryMXBean.class);
78
79 MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage();
80 System.out.println("heapMemoryUsage :");
81 System.out.println("committed = "
82 + convertKB(heapMemoryUsage.getCommitted()));
83 System.out
84 .println("init = " + convertKB(heapMemoryUsage.getInit()));
85 System.out.println("max = " + convertKB(heapMemoryUsage.getMax()));
86 System.out
87 .println("used = " + convertKB(heapMemoryUsage.getUsed()));
88
89 MemoryUsage nonHeapMemoryUsage = memoryMXBean
90 .getNonHeapMemoryUsage();
91 System.out.println("\nnonHeapMemoryUsage :");
92 System.out.println("committed = "
93 + convertKB(nonHeapMemoryUsage.getCommitted()));
94 System.out.println("init = "
95 + convertKB(nonHeapMemoryUsage.getInit()));
96 System.out.println("max = "
97 + convertKB(nonHeapMemoryUsage.getMax()));
98 System.out.println("used = "
99 + convertKB(nonHeapMemoryUsage.getUsed()));
100
101 // 获取 ThreadMXBean
102 System.out.println("\nThread");
103 ThreadMXBean threadMXBean = ManagementFactory
104 .newPlatformMXBeanProxy(mBeanServerConnection,
105 ManagementFactory.THREAD_MXBEAN_NAME,
106 ThreadMXBean.class);
107 System.out
108 .println("ThreadCount = " + threadMXBean.getThreadCount());
109 System.out.println("DaemonThreadCount = "
110 + threadMXBean.getDaemonThreadCount());
111 System.out.println("PeakThreadCount = "
112 + threadMXBean.getPeakThreadCount());
113 System.out.println("CurrentThreadCpuTime = "
114 + threadMXBean.getCurrentThreadCpuTime());
115 System.out.println("CurrentThreadUserTime = "
116 + threadMXBean.getCurrentThreadUserTime());
117
118 System.out.println("\nClassLoading");
119 ClassLoadingMXBean classLoadingMXBean = ManagementFactory
120 .newPlatformMXBeanProxy(mBeanServerConnection,
121 ManagementFactory.CLASS_LOADING_MXBEAN_NAME,
122 ClassLoadingMXBean.class);
123 // 当前加载到Java虚拟机中类的数量
124 System.out.println("LoadedClassCount = "
125 + classLoadingMXBean.getLoadedClassCount());
126 // Java 虚拟机开始执行到目前已经加载的类的总数。
127 System.out.println("TotalLoadedClassCount = "
128 + classLoadingMXBean.getTotalLoadedClassCount());
129 // Java 虚拟机开始执行到目前已经卸载的类的总数。
130 System.out.println("UnloadedClassCount = "
131 + classLoadingMXBean.getUnloadedClassCount());
132
133 System.out.println("\nCpu");
134 OperatingSystemMXBean operatingSystemMXBean = ManagementFactory
135 .newPlatformMXBeanProxy(mBeanServerConnection,
136 ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME,
137 OperatingSystemMXBean.class);
138 System.out.println("AvailableProcessors = "
139 + operatingSystemMXBean.getAvailableProcessors());
140 double ratio = 0.0;
141 long start = System.currentTimeMillis();
142 long startC;
143 try {
144 startC = (Long) mBeanServerConnection.getAttribute(operatingSystemMXBean.getObjectName(),"ProcessCpuTime");
145 try {
146 TimeUnit.SECONDS.sleep(5);
147 } catch (InterruptedException e) {
148 e.printStackTrace();
149 }
150
151 long end = System.currentTimeMillis();
152 long endC = (Long) mBeanServerConnection.getAttribute(operatingSystemMXBean.getObjectName(),"ProcessCpuTime");
153
154 int availableProcessors = operatingSystemMXBean
155 .getAvailableProcessors();
156 ratio = (endC - startC) / 1000000.0 / (end - start)
157 / availableProcessors;
158
159 } catch (AttributeNotFoundException e1) {
160 // TODO Auto-generated catch block
161 e1.printStackTrace();
162 } catch (InstanceNotFoundException e1) {
163 // TODO Auto-generated catch block
164 e1.printStackTrace();
165 } catch (MBeanException e1) {
166 // TODO Auto-generated catch block
167 e1.printStackTrace();
168 } catch (ReflectionException e1) {
169 // TODO Auto-generated catch block
170 e1.printStackTrace();
171 }
172
173 System.out.println("CUP使用率" + round(ratio * 100) + "%");
174
175 } catch (MalformedURLException e) {
176 e.printStackTrace();
177 System.out.println("非法的ServiceURL");
178 } catch (IOException e) {
179 e.printStackTrace();
180 } finally {
181 try {
182 if (jmxConnector != null) {
183 jmxConnector.close();
184 }
185 } catch (IOException e) {
186 e.printStackTrace();
187 }
188 }
189
190 }
191
192 private static String convertKB(long src) {
193
194 if (src <= 0L) {
195 return "0KB";
196 }
197 double conversrc = src / 1024 / 1024;
198
199 return round(conversrc) + "MB";
200 }
201
202 private static float round(double src) {
203 return (float) (Math.round(src * 100)) / 100;
204 }
205 }
时间： 2024-10-20 01:10:30