JMX\uff08Java Management eXtensions\uff09\u306fJ2SE 5.0\u3067\u53d6\u308a\u5165\u308c\u3089\u308c\u305f\u65b0\u6a5f\u80fd\u3067\u3001\u5916\u90e8\u304b\u3089JVM\u306e\u76e3\u8996\u30fb\u7ba1\u7406\u3092\u884c\u3046\u3053\u3068\u304c\u51fa\u6765\u308b\u4ed5\u7d44\u307f\u3002<\/p>\n
\u4eca\u3084\u3063\u3066\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u72ec\u81ea\u306eDB\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30ea\u30f3\u30b0\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u3066\u308b\u306e\u3067\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u72b6\u6cc1\u306a\u3069\u3092\u76e3\u8996\u3067\u304d\u308c\u3070\u3044\u3044\u306a\u3041\u3068\u3044\u3046\u306e\u304c\u305d\u3082\u305d\u3082\u306e\u304d\u3063\u304b\u3051\u3002<\/p>\n
JMX\u81ea\u4f53\u306b\u3064\u3044\u3066\u306e\u8a73\u3057\u3044\u8aac\u660e\u306fGoogle\u3067\u691c\u7d22\u3059\u308c\u3070\u60c5\u5831\u306f\u51fa\u3066\u6765\u308b\u3068\u601d\u3046\u306e\u3067\u3001\u3053\u3053\u3067\u306f\u5177\u4f53\u7684\u306a\u4f7f\u3044\u65b9\u3068\u304b\u3092\u30e1\u30e2\u7a0b\u5ea6\u306b\u3002\u3068\u306f\u8a00\u3048\u57fa\u672c\u7684\u306a\u4e8b\u3092\u5168\u304f\u66f8\u304b\u306a\u3044\u306e\u3082\u4f55\u306a\u306e\u3067\u3061\u3087\u3063\u3068\u3060\u3051\u3002<\/p>\n
\u25cbJMX\u306e\u4ed5\u7d44\u307f\uff08\u8d85\u7c21\u5358\u306b\uff09
\n\u305d\u306e\u540d\u306e\u901a\u308aJava\u3092\u7ba1\u7406\uff08manage\uff09\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3001\u7ba1\u7406\u5bfe\u8c61\u306eJava\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08\u4eca\u56de\u306e\u4f8b\u3067\u306f\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30ea\u30f3\u30b0\u30af\u30e9\u30b9\uff09\u306b\u5bfe\u3057\u3066MBean\u3068\u3044\u3046\u7ba1\u7406\u7528\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u308a\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff08\u203b1\uff09\u306fMBean\u30b5\u30fc\u30d0\u30fc\u3092\u7d4c\u7531\u3067MBean\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u7ba1\u7406\u5bfe\u8c61\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u7ba1\u7406\u3059\u308b\u3002<\/p>\n
\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 → MBean\u30b5\u30fc\u30d0\u30fc → MBean → \u7ba1\u7406\u5bfe\u8c61\u306eJava\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/p>\n
\u3068\u3044\u3046\u611f\u3058\u3002\u3053\u306e\u30da\u30fc\u30b8<\/a>\u306e\u56f32\u304c\u5206\u304b\u308a\u3084\u3059\u304b\u3063\u305f<\/p>\n \u65b0\u305f\u306b\u4f5c\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u306fMBean\uff08\u3068\u3044\u304f\u3064\u304b\u306e\u8a2d\u5b9a\u5909\u66f4\uff09\u306e\u307f\u3002MBean\u30b5\u30fc\u30d0\u30fc\u306f\u72ec\u81ea\u306e\u3092\u4f5c\u308b\u3053\u3068\u3082\u53ef\u80fd\u3060\u3051\u3069\u3001\u666e\u901a\u306f\u300c\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0 MBean \u30b5\u30fc\u30d0\u30fc\u300d\u3068\u8a00\u3046JVM\u306b\u7d44\u307f\u8fbc\u307e\u308c\u305f\u3082\u306e\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n \u3042\u3068\u5f53\u305f\u308a\u524d\u3068\u8a00\u3048\u3070\u5f53\u305f\u308a\u524d\u3060\u3051\u3069\u3001MBean\u306f\u4f5c\u6210\u3057\u305f\u3060\u3051\u3058\u3083\u30c0\u30e1\u3067\u3001MBean\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n \uff08\u203b1\uff09\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u3042\u305f\u308b\u306e\u306f\u4e00\u822c\u7684\u306b\u306f\u7ba1\u7406\u30fb\u76e3\u8996\u30bd\u30d5\u30c8\u3067\u3001JMX\u306e\u4ed5\u7d44\u307f\u306b\u6cbf\u3063\u305f\u3082\u306e\u306a\u3089\u4f55\u3067\u3082ok\u3002<\/p>\n \u25cb\u74b0\u5883 \u25cbTomcat\u306e\u8a2d\u5b9a \n\u305d\u306e\u4ed6\u95a2\u9023\u3059\u308b\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066\u306f\u3053\u306e\u8fba\u308a<\/a>\u3092\u53c2\u8003\u306b\u3002<\/p>\n \u30fbTomcat\u306e\u7ba1\u7406\u753b\u9762\u3078\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u30e6\u30fc\u30b6\u30fc\u3092\u8a2d\u5b9a\uff08\u5fc5\u9808\u3067\u306f\u306a\u3044\u3051\u3069\uff09 \u25cbMBean\u306e\u4f5c\u6210 \u30fbMBeans\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f5c\u6210 \u30fbMBeans\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30af\u30e9\u30b9\u3092\u4f5c\u6210 \u5168\u7136\u96e3\u3057\u3044\u3053\u3068\u306f\u306a\u3044\u3002<\/p>\n \u25cbMBean\u306e\u767b\u9332 MBean\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3068\u304b\u3067\u81ea\u5206\u81ea\u8eab\u3092\u767b\u9332\u3057\u3066\u3082\u3044\u3044\u3057\u3001\u5225\u306e\u30af\u30e9\u30b9\u304b\u3089\uff08\u8907\u6570\u306eMBean\u304c\u3042\u308b\u5834\u5408\u306b\u306f\u4e00\u62ec\uff09\u767b\u9332\u3057\u3066\u3082\u3044\u3044\u3051\u3069\u3001\u3044\u305a\u308c\u306b\u3057\u3066\u3082\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u304c\u3042\u308b\u3068\u4fbf\u5229\u3002<\/p>\n \u3061\u3087\u3063\u3068\u7aef\u6298\u3063\u305f\u3051\u3069\u3053\u3093\u306a\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u305f\u3002\u4f8b\u5916\u51e6\u7406\u3092\u9664\u304f\u3068\u30b9\u30b4\u3044\u30b7\u30f3\u30d7\u30eb\u3063\u3066\u306e\u304c\u5206\u304b\u308b\u3068\u601d\u3046\u3002<\/p>\n JMXUtils.registerAll()\u3092\u547c\u3079\u3070MBean\u304c\u767b\u9332\u3055\u308c\u308b\u306e\u304c\u5206\u304b\u3063\u305f\u3068\u601d\u3046\u3051\u3069\u3001\u3058\u3083\u305d\u308c\u3092\u3069\u3053\u3067\u547c\u3073\u51fa\u3059\u304b\u3068\u3044\u3046\u306e\u304c\u6b21\u306e\u8a71\u3002<\/p>\n \u30fbContextListner\u3092\u5b9f\u88c5 \u3042\u3068\u306fweb.xml\u306bContextListener\u306e\u30a8\u30f3\u30c8\u30ea\u3092\u8a18\u8ff0\u3002<\/p>\n \u25cb\u6700\u5f8c\u306bTomcat\u306e\u8a2d\u5b9a\u3092\u3082\u3046\u3061\u3087\u3044 \u30fb\u30c7\u30d7\u30ed\u30a4 mbeans-descriptor.xml\u306f\u30eb\u30fc\u30c8\uff08CATALINA_HOMEcommonclasses\uff09\u306b\u3001\u30af\u30e9\u30b9\u30d5\u30a1\u30a4\u30eb\u306f\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u968e\u5c64\u69cb\u9020\u306e\u307e\u307e\u30b3\u30d4\u30fc\u3002\u4eca\u56de\u306e\u4f8b\u3067\u306f\u4ee5\u4e0b\u306e\u30d5\u30a9\u30eb\u30c0\u306b\u3002 \u30fbserver.xml\u306e\u4fee\u6b63 \n\u3053\u306e\u3088\u3046\u306b\u5909\u66f4<\/p>\n \u5f8c\u306fTomcat\u3092\u518d\u8d77\u52d5\u3002<\/p>\n \u25cb\u52d5\u4f5c\u78ba\u8a8d <\/p>\n \u25cb\u53c2\u8003\u306b\u3057\u305f\u30b5\u30a4\u30c8 JMX\uff08Java Management eXtensions\uff09\u306fJ2SE 5.0\u3067\u53d6\u308a\u5165\u308c\u3089\u308c\u305f\u65b0\u6a5f\u80fd\u3067\u3001\u5916\u90e8\u304b\u3089JVM\u306e\u76e3\u8996\u30fb\u7ba1\u7406\u3092\u884c\u3046\u3053\u3068\u304c\u51fa\u6765\u308b\u4ed5\u7d44\u307f\u3002 \u4eca\u3084\u3063\u3066\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u72ec\u81ea\u306eDB\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30d7\u30fc\u30ea\u30f3\u30b0\u30af…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[60],"tags":[103,104,105,106,68],"class_list":["post-623","post","type-post","status-publish","format-standard","hentry","category-java","tag-contextlistner","tag-jmx","tag-mbean","tag-mbean-descriptor-xml","tag-tomcat"],"_links":{"self":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts\/623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/comments?post=623"}],"version-history":[{"count":0,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts\/623\/revisions"}],"wp:attachment":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/media?parent=623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/categories?post=623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/tags?post=623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nTomcat 5.5.23
\nJ2SE 1.5.0
\nWindows XP SP2<\/p>\n
\n\u30fbJMX\u3092\u6709\u52b9\u306b
\n\u8d77\u52d5\u6642\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3067JMX\u3092\u6709\u52b9\u306b\u3059\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n\n-Dcom.sun.management.jmxremote<\/pre>\n
\nCATALINA_HOME\/conf\/tomcat-users.xml<\/p>\n\n<tomcat-users>\n<role rolename="manager"\/>\n<user username="admin" password="foobar" roles="manager"\/>\n<\/tomcat-users><\/pre>\n
\nMBean\u306b\u306f\u3044\u304f\u3064\u304b\u7a2e\u985e\u304c\u3042\u308b\u3051\u3069\u3001\u4eca\u56de\u306f\u4e00\u756a\u624b\u3063\u53d6\u308a\u65e9\u3044\u6a19\u6e96MBean\u3068\u3044\u3046\u306e\u3092\u4f5c\u6210\u3002<\/p>\n
\n\u4eca\u56de\u306f\u73fe\u5728\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u6570\u3092\u8fd4\u3059\u30e1\u30bd\u30c3\u30c9\u3092\u3068\u308a\u3042\u3048\u305a\u4f5c\u3063\u3066\u307f\u308b\u3002\u7279\u306b\u96e3\u3057\u3044\u3053\u3068\u306f\u306a\u3044\u3002<\/p>\n\npackage tv.kazu.test.mbeans\npublic interface DBStatusMBean {\npublic int getUsedConnections();\n}<\/pre>\n
\n\u3053\u308c\u3082\u7279\u5225\u5909\u308f\u3063\u305f\u3053\u3068\u306f\u3057\u3066\u306a\u3044<\/p>\n\npackage tv.kazu.test.mbeans\npublic class DBStatus {\npublic DBStatus() {\n}\npublic int getUsedConnections() {\n\/\/ MYDBConnPool\u306f\u3069\u3063\u304b\u3067\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u4e8b\u3068\u3059\u308b\nreturn MyDBConnPool.getUsedConnections();\n}\n}<\/pre>\n
\n\u30fb\u767b\u9332\u7528\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u4f5c\u6210
\n\u524d\u8ff0\u306e\u901a\u308a\u3001MBean\u306fMBean\u30b5\u30fc\u30d0\u30fc\u306b\u767b\u9332\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u5c11\u3057\u3060\u3051\u96e3\u3057\u304f\u306a\u308b\u3051\u3069\u3001\u5927\u3057\u305f\u3053\u3068\u7121\u3044\u3002<\/p>\n\npublic class JMXUtils {\nprivate static MBeanServer mbeanServer = null;\nstatic public void registerAll() {\nmbeanServer = getMbeanServer();\n\/\/\u8907\u6570\u306eMBean\u304c\u3042\u308b\u5834\u5408\u306f\u3053\u3053\u3067\u5168\u3066\u767b\u9332\nDBStatus bean = new DBStatus();\nregisterMBean(bean, "tv.kazu.test.mbean:type=DBStatus");\n}\n\/\/MBean\u306e\u767b\u9332\nstatic public void registerMBean(Object mbean, String nameStr) {\nmbeanServer = getMbeanServer();\nObjectName objectName = null;\ntry {\nobjectName = new ObjectName(nameStr);\n} catch (MalformedObjectNameException e) {\ne.printStackTrace();\n} catch (NullPointerException e) {\ne.printStackTrace();\n}\ntry {\nmbeanServer.registerMBean(mbean, objectName);\n} catch (InstanceAlreadyExistsException e) {\ne.printStackTrace();\n} catch (MBeanRegistrationException e) {\ne.printStackTrace();\n} catch (NotCompliantMBeanException e) {\ne.printStackTrace();\n}\n}\n\/\/MBean\u30b5\u30fc\u30d0\u30fc\u306e\u53d6\u5f97\nstatic public MBeanServer getMbeanServer() {\nif (mbeanServer == null) {\nmbeanServer = ManagementFactory.getPlatformMBeanServer();\n}\nreturn mbeanServer;\n}\n}\n<\/pre>\n
\n\u8a73\u7d30\u306f\u7701\u304f\u3051\u3069\u3001ContextListner\u3063\u3066\u306e\u3092\u4f5c\u3063\u3066\u3061\u3083\u3093\u3068\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3068Tomcat\u306e\u8d77\u52d5\u6642\u306b\u305d\u308c\u304c\u547c\u3070\u308c\u308b\u306e\u3067\u305d\u3053\u3067MBean\u306e\u767b\u9332\u3092\u3059\u308b\uff08\u3059\u3054\u3044\u9069\u5f53\u306a\u8aac\u660e…\uff09\u3002<\/p>\n\npublic final class ContextListener\nimplements ServletContextListener {\npublic void contextDestroyed(ServletContextEvent arg0) {\n}\npublic void contextInitialized(ServletContextEvent arg0) {\ntry {\nSystem.out.println("ContextListner\u304c\u547c\u3070\u308c\u3066\u307e\u3059\u3002");\nJMXUtils.registerAll();\n} catch (IOException e) {\ne.printStackTrace();\n}\n}\n}<\/pre>\n\n<listener>\n<listener-class>tv.kazu.test.jmx.ContextListener<\/listener-class>\n<\/listener><\/pre>\n
\n\u30fbmbeans-descriptor.xml
\n\u5f8c\u306fTomcat\u306b\u5bfe\u3057\u3066\u3001\u300c\u3053\u3093\u306aMBean\u3092\u4f7f\u3044\u307e\u3059\u3088\u300d\u3068\u4f1d\u3048\u3066\u3042\u3052\u308c\u3070\u3044\u3044\u3002\u305d\u306e\u8a2d\u5b9a\u306b\u306fmbeans-descriptor.xml\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n\n<?xml version="1.0"?>\n<mbeans-descriptors>\n<mbean name="DBStatus"\nclassName="org.apache.catalina.mbeans.ClassNameMBean"\ndescription="DB status"\ndomain="Catalina"\ntype="tv.kazu.test.mbean.DBStatus">\n<attribute name="className"\ndescription="Fully qualified class name of the managed object"\ntype="java.lang.String"\nwriteable="false"\/>\n<attribute name="debug"\ndescription="The debugging detail level for this component"\ntype="int"\/>\n<operation name="getUsedConnections"\ndescription="Returns the number of the connections."\nimpact="ACTION"\nreturn="int">\n<\/operation>\n<\/mbean>\n<\/mbeans-descriptors><\/pre>\n
\nMBean\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30af\u30e9\u30b9\u3068mbeans-descriptor.xml\u3092JAR\u30d5\u30a1\u30a4\u30eb\u306b\u3057\u3066
\nCATALINA_HOMEcommonlib
\n\u306b\u7f6e\u304f\u304b\u3001\u30c6\u30b9\u30c8\u7528\u9014\u3068\u304b\u3067JAR\u3092\u3044\u3061\u3044\u3061\u4f5c\u308b\u306e\u304c\u9762\u5012\u306a\u5834\u5408\u306f\u30d5\u30a1\u30a4\u30eb\u3092\u500b\u5225\u306b
\nCATALINA_HOMEcommonclasses
\n\u306b\u7f6e\u304f\u3002<\/p>\n
\nCATALINA_HOMEcommonclassestvkazutestmbean<\/p>\n
\nserver.xml\u306bmbeans-descriptor.xml\u306b\u95a2\u3059\u308b\u8a18\u8ff0\u3092\u8ffd\u52a0\u3002
\n\u4ee5\u4e0b\u306e\u884c\u3092<\/p>\n\n<Listener className="org.apache.catalina.mbeans.ServerLifecycleListner" \/><\/pre>\n
\n<Listener className="org.apache.catalina.mbeans.ServerLifecycleListner"\ndebug="0" descriptors="\/mbeans-descriptor.xml" \/><\/pre>\n
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