2019.9.22 Tomcat 远程监控功能

方法一：开发java监控页面

[root@localhost ~]# mkdir /usr/local/tomcat8/webapps/memtest/

[root@localhost ~]# vim /usr/local/tomcat8/webapps/memtest/meminfo.jsp

Runtime rtm = Runtime.getRuntime();

long mm = rtm.maxMemory()/1024/1024;

long tm = rtm.totalMemory()/1024/1024;

long fm = rtm.freeMemory()/1024/1024;

out.println("JVM memory detail info : ");

out.println("Max memory:"+mm+"MB"+" ");

out.println("Total memory:"+tm+"MB"+" ");

out.println("Free memory:"+fm+"MB"+" ");

out.println("Available memory can be used is :"+(mm+fm-tm)+"MB"+" ");

方法二：使用jps命令进行监控

[root@localhost ~]# jps -lvm

80106 sun.tools.jps.Jps -lvm -Dapplication.home=/usr/local/java -Xms8m

79788 org.apache.catalina.startup.Bootstrap start -Djava.util.logging.config.file=/usr/local/tomcat8/conf/logging.propertie

s -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dcatalina.base=/usr/local/tomcat8 -Dcatalina.home=/usr/local/tomcat8 -Djava.io.tmpdir=/usr/local/tomcat8/temp

方法三：Tomcat远程监控功能

修改配置文件，开启远程监控

[root@localhost ~]# vim /usr/local/tomcat8/bin/catalina.sh

#!/bin/sh //在# ！/bin/sh下面插入这些内容

CATALINA_OPTS="$CATALINA_OPTS
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=12345 //监听端口是12345
-Dcom.sun.management.jmxremote.authenticate=false //不用去做验证
-Dcom.sun.management.jmxremote.ssl=false //ssl也是关闭的
-Djava.rmi.server.hostname=192.168.200.112" //监控ip必须是本机ip

[root@localhost ~]# /usr/local/tomcat8/bin/shutdown.sh //关闭

[root@localhost ~]# /usr/local/tomcat8/bin/startup.sh //开启

[root@localhost ~]# netstat -lnpt | grep :12345 //查看刚才设置的端口是否开启
tcp6 0 0 :::12345 :::* LISTEN 6551/java

在windows上监控tomcat

注意：windwos需要安装jdk环境！

下载地址：http://www.oracle.com/technetwork/java/javase/downloads/index.html