序
Spring Boot有四大神器，分别是auto-configuration、starters、cli、actuator，本文主要讲actuator。actuator是spring boot提供的对应用系统的自省和监控的集成功能，可以对应用系统进行配置查看、相关功能统计等。
spring-boot-starter-actuator模块的实现对于实施微服务的中小团队来说，可以有效地减少监控系统在采集应用指标时的开发量。当然，它也并不是万能的，有时候我们也需要对其做一些简单的扩展来帮助我们实现自身系统个性化的监控需求。下面，在本文中，我们将详解的介绍一些关于spring-boot-starter-actuator模块的内容，包括它的原生提供的端点以及一些常用的扩展和配置方式。
使用actuator
添加依赖
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<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
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主要暴露的功能
| HTTP方法 | 路径 | 描述 | 鉴权 |
|---|---|---|---|
| GET | /autoconfig | 查看自动配置的使用情况 | true |
| GET | /configprops | 查看配置属性，包括默认配置 | true |
| GET | /beans | 查看bean及其关系列表 | true |
| GET | /dump | 打印线程栈 | true |
| GET | /env | 查看所有环境变量 | true |
| GET | /env/{name} | 查看具体变量值 | true |
| GET | /health | 查看应用健康指标 | false |
| GET | /info | 查看应用信息 | false |
| GET | /mappings | 查看所有url映射 | true |
| GET | /metrics | 查看应用基本指标 | true |
| GET | /metrics/{name} | 查看具体指标 | true |
| POST | /shutdown | 关闭应用 | true |
| GET | /trace | 查看基本追踪信息 | true |
/autoconfig
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{
"positiveMatches": {
"AuditAutoConfiguration.AuditEventRepositoryConfiguration": [
{
"condition": "OnBeanCondition",
"message": "@ConditionalOnMissingBean (types: org.springframework.boot.actuate.audit.AuditEventRepository; SearchStrategy: all) found no beans"
}
]
},
"negativeMatches": {
"CacheStatisticsAutoConfiguration": [
{
"condition": "OnBeanCondition",
"message": "@ConditionalOnBean (types: org.springframework.cache.CacheManager; SearchStrategy: all) found no beans"
}
]
}
}
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/configprops
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{
"management.health.status.CONFIGURATION_PROPERTIES": {
"prefix": "management.health.status",
"properties": {
"order": null
}
},
"multipart.CONFIGURATION_PROPERTIES": {
"prefix": "multipart",
"properties": {
"enabled": false,
"maxRequestSize": "10Mb",
"location": null,
"fileSizeThreshold": "0",
"maxFileSize": "1Mb"
}
},
"environmentEndpoint": {
"prefix": "endpoints.env",
"properties": {
"id": "env",
"enabled": true,
"sensitive": true
}
}
}
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/beans
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[
{
"context": "application:8080",
"parent": null,
"beans": [
{
"bean": "appMain",
"scope": "singleton",
"type": "com.xixicat.AppMain$$EnhancerBySpringCGLIB$$29382b14",
"resource": "null",
"dependencies": [ ]
},
{
"bean": "videoInfoMapper",
"scope": "singleton",
"type": "com.xixicat.dao.VideoInfoMapper",
"resource": "file [/Users/xixicat/workspace/video-uber/target/classes/com/xixicat/dao/VideoInfoMapper.class]",
"dependencies": [
"sqlSessionFactory"
]
}
]
}
]
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/dump
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[
{
"threadName": "Signal Dispatcher",
"threadId": 4,
"blockedTime": -1,
"blockedCount": 0,
"waitedTime": -1,
"waitedCount": 0,
"lockName": null,
"lockOwnerId": -1,
"lockOwnerName": null,
"inNative": false,
"suspended": false,
"threadState": "RUNNABLE",
"stackTrace": [ ],
"lockedMonitors": [ ],
"lockedSynchronizers": [ ],
"lockInfo": null
},
{
"threadName": "Reference Handler",
"threadId": 2,
"blockedTime": -1,
"blockedCount": 217,
"waitedTime": -1,
"waitedCount": 9,
"lockName": "java.lang.ref.Reference$Lock@45de945",
"lockOwnerId": -1,
"lockOwnerName": null,
"inNative": false,
"suspended": false,
"threadState": "WAITING",
"stackTrace": [
{
"methodName": "wait",
"fileName": "Object.java",
"lineNumber": -2,
"className": "java.lang.Object",
"nativeMethod": true
},
{
"methodName": "wait",
"fileName": "Object.java",
"lineNumber": 503,
"className": "java.lang.Object",
"nativeMethod": false
},
{
"methodName": "run",
"fileName": "Reference.java",
"lineNumber": 133,
"className": "java.lang.ref.Reference$ReferenceHandler",
"nativeMethod": false
}
],
"lockedMonitors": [ ],
"lockedSynchronizers": [ ],
"lockInfo": {
"className": "java.lang.ref.Reference$Lock",
"identityHashCode": 73263429
}
}
]
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/env
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{
profiles: [],
server.ports: {
local.server.port: 8080
},
servletContextInitParams: {},
systemProperties: {
java.runtime.name: "Java(TM) SE Runtime Environment",
sun.boot.library.path: "/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib",
java.vm.version: "24.79-b02",
gopherProxySet: "false",
maven.multiModuleProjectDirectory: "/Users/xixicat/workspace/video-uber",
java.vm.vendor: "Oracle Corporation",
java.vendor.url: "http://java.oracle.com/",
guice.disable.misplaced.annotation.check: "true",
path.separator: ":",
java.vm.name: "Java HotSpot(TM) 64-Bit Server VM",
file.encoding.pkg: "sun.io",
user.country: "CN",
sun.java.launcher: "SUN_STANDARD",
sun.os.patch.level: "unknown",
PID: "763",
java.vm.specification.name: "Java Virtual Machine Specification",
user.dir: "/Users/xixicat/workspace/video-uber",
java.runtime.version: "1.7.0_79-b15",
java.awt.graphicsenv: "sun.awt.CGraphicsEnvironment",
java.endorsed.dirs: "/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/endorsed",
os.arch: "x86_64",
java.io.tmpdir: "/var/folders/tl/xkf4nr61033gd6lk5d3llz080000gn/T/",
line.separator: " ",
java.vm.specification.vendor: "Oracle Corporation",
os.name: "Mac OS X",
classworlds.conf: "/Users/xixicat/devtool/maven-3.3.3/bin/m2.conf",
sun.jnu.encoding: "UTF-8",
spring.beaninfo.ignore: "true",
java.library.path: "/Users/xixicat/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.",
java.specification.name: "Java Platform API Specification",
java.class.version: "51.0",
sun.management.compiler: "HotSpot 64-Bit Tiered Compilers",
os.version: "10.10.5",
user.home: "/Users/xixicat",
user.timezone: "Asia/Shanghai",
java.awt.printerjob: "sun.lwawt.macosx.CPrinterJob",
file.encoding: "UTF-8",
java.specification.version: "1.7",
java.class.path: "/Users/xixicat/devtool/maven-3.3.3/boot/plexus-classworlds-2.5.2.jar",
user.name: "xixicat",
java.vm.specification.version: "1.7",
sun.java.command: "org.codehaus.plexus.classworlds.launcher.Launcher spring-boot:run",
java.home: "/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre",
sun.arch.data.model: "64",
user.language: "zh",
java.specification.vendor: "Oracle Corporation",
awt.toolkit: "sun.lwawt.macosx.LWCToolkit",
java.vm.info: "mixed mode",
java.version: "1.7.0_79",
java.ext.dirs: "/Users/xixicat/Library/Java/Extensions:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/ext:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java",
sun.boot.class.path: "/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/resources.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/rt.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/sunrsasign.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jsse.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jce.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/charsets.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/jfr.jar:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/classes",
java.awt.headless: "true",
java.vendor: "Oracle Corporation",
maven.home: "/Users/xixicat/devtool/maven-3.3.3",
file.separator: "/",
LOG_EXCEPTION_CONVERSION_WORD: "%wEx",
java.vendor.url.bug: "http://bugreport.sun.com/bugreport/",
sun.io.unicode.encoding: "UnicodeBig",
sun.cpu.endian: "little",
sun.cpu.isalist: ""
},
systemEnvironment: {
TERM: "xterm-256color",
ZSH: "/Users/xixicat/.oh-my-zsh",
GVM_BROKER_SERVICE: "http://release.gvm.io",
GRIFFON_HOME: "/Users/xixicat/.gvm/griffon/current",
JAVA_MAIN_CLASS_763: "org.codehaus.plexus.classworlds.launcher.Launcher",
JAVA_HOME: "/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home",
SHLVL: "1",
MAVEN_CMD_LINE_ARGS: " spring-boot:run",
__CF_USER_TEXT_ENCODING: "0x1F5:0x19:0x34",
GROOVY_HOME: "/Users/xixicat/.gvm/groovy/current",
XPC_FLAGS: "0x0",
GVM_INIT: "true",
JBAKE_HOME: "/Users/xixicat/.gvm/jbake/current",
PWD: "/Users/xixicat/workspace/video-uber",
GVM_DIR: "/Users/xixicat/.gvm",
GVM_VERSION: "2.4.3",
MAVEN_PROJECTBASEDIR: "/Users/xixicat/workspace/video-uber",
LOGNAME: "xixicat",
SSH_AUTH_SOCK: "/private/tmp/com.apple.launchd.93xr1duECQ/Listeners",
SPRINGBOOT_HOME: "/Users/xixicat/.gvm/springboot/current",
GAIDEN_HOME: "/Users/xixicat/.gvm/gaiden/current",
LAZYBONES_HOME: "/Users/xixicat/.gvm/lazybones/current",
OLDPWD: "/Users/xixicat/workspace/video-uber",
SHELL: "/bin/zsh",
JBOSSFORGE_HOME: "/Users/xixicat/.gvm/jbossforge/current",
LC_CTYPE: "zh_CN.UTF-8",
TMPDIR: "/var/folders/tl/xkf4nr61033gd6lk5d3llz080000gn/T/",
GVM_SERVICE: "http://api.gvmtool.net",
GVM_PLATFORM: "Darwin",
CLASSPATH: ".:/Users/xixicat/.m2/repository/co/paralleluniverse/quasar-core/0.7.2/quasar-core-0.7.2.jar",
GLIDE_HOME: "/Users/xixicat/.gvm/glide/current",
PATH: "/Users/xixicat/.gvm/vertx/current/bin:/Users/xixicat/.gvm/springboot/current/bin:/Users/xixicat/.gvm/lazybones/current/bin:/Users/xixicat/.gvm/jbossforge/current/bin:/Users/xixicat/.gvm/jbake/current/bin:/Users/xixicat/.gvm/groovyserv/current/bin:/Users/xixicat/.gvm/groovy/current/bin:/Users/xixicat/.gvm/griffon/current/bin:/Users/xixicat/.gvm/grails/current/bin:/Users/xixicat/.gvm/gradle/current/bin:/Users/xixicat/.gvm/glide/current/bin:/Users/xixicat/.gvm/gaiden/current/bin:/Users/xixicat/.gvm/crash/current/bin:/Users/xixicat/.gvm/asciidoctorj/current/bin:/Users/xixicat/bin:/usr/local/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/git/bin:/Users/xixicat/devtool/maven-3.3.3/bin:/Users/xixicat/devtool/gradle-2.6/bin:/Users/xixicat/devtool/android-sdk/platform-tools",
GRADLE_HOME: "/Users/xixicat/.gvm/gradle/current",
GROOVYSERV_HOME: "/Users/xixicat/.gvm/groovyserv/current",
GRAILS_HOME: "/Users/xixicat/.gvm/grails/current",
USER: "xixicat",
LESS: "-R",
PAGER: "less",
HOME: "/Users/xixicat",
CRASH_HOME: "/Users/xixicat/.gvm/crash/current",
XPC_SERVICE_NAME: "0",
VERTX_HOME: "/Users/xixicat/.gvm/vertx/current",
GVM_BROADCAST_SERVICE: "http://cast.gvm.io",
Apple_PubSub_Socket_Render: "/private/tmp/com.apple.launchd.y6fNwP8Sk6/Render",
LSCOLORS: "Gxfxcxdxbxegedabagacad",
ASCIIDOCTORJ_HOME: "/Users/xixicat/.gvm/asciidoctorj/current"
},
applicationConfig: [classpath: /application.properties]: {
pool.acquireIncrement: "1",
pool.minPoolSize: "5",
pool.initialPoolSize: "1",
database.username: "root",
pool.maxIdleTime: "60",
database.url: "jdbc:mysql://127.0.0.1:3307/video_uber?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull",
spring.jackson.dateFormat: "yyyy-MM-dd'T'HH:mm:ss",
database.slave.username: "root",
spring.jackson.serialization.write - dates - as - timestamps: "false",
pool.idleTimeout: "30000",
database.slave.url: "jdbc:mysql://127.0.0.1:3307/demo?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull",
server.port: "8080",
database.slave.password: "******",
database.password: "******",
database.driverClassName: "com.mysql.jdbc.Driver",
pool.maxPoolSize: "50",
database.dataSourceClassName: "com.mysql.jdbc.jdbc2.optional.MysqlDataSource"
}
}
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/health
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{
status: "UP",
diskSpace: {
status: "UP",
total: 249779191808,
free: 193741590528,
threshold: 10485760
},
db: {
status: "UP",
database: "MySQL",
hello: 1
}
}
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/info
需要自己在application.properties里头添加信息，比如
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info:
contact:
email: xixicat@gmail.com
phone: 0755-82890987
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然后请求就可以出来了
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{
"contact": {
"phone": "0755-82890987",
"email": "xixicat@gmail.com"
}
}
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/mappings
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{
{
[/metrics || /metrics.json], methods = [GET], produces = [application / json]
}: {
bean: "endpointHandlerMapping",
method: "public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()"
}, {
[/beans || /beans.json], methods = [GET], produces = [application / json]
}: {
bean: "endpointHandlerMapping",
method: "public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()"
}, {
[/health || /health.json], produces = [application / json]
}: {
bean: "endpointHandlerMapping",
method: "public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(java.security.Principal)"
}, {
[/info || /info.json], methods = [GET], produces = [application / json]
}: {
bean: "endpointHandlerMapping",
method: "public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()"
}, {
[/trace || /trace.json], methods = [GET], produces = [application / json]
}: {
bean: "endpointHandlerMapping",
method: "public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()"
}, {
[/autoconfig || /autoconfig.json], methods = [GET], produces = [application / json]
}: {
bean: "endpointHandlerMapping",
method: "public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()"
}
}
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/metrics
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{
mem: 499404,
mem.free: 257591,
processors: 8,
instance.uptime: 4284997,
uptime: 4294909,
systemload.average: 1.84521484375,
heap.committed: 437248,
heap.init: 262144,
heap.used: 179656,
heap: 3728384,
nonheap.committed: 62848,
nonheap.init: 24000,
nonheap.used: 62156,
nonheap: 133120,
threads.peak: 18,
threads.daemon: 6,
threads.totalStarted: 176,
threads: 16,
classes: 10294,
classes.loaded: 10294,
classes.unloaded: 0,
gc.ps_scavenge.count: 11,
gc.ps_scavenge.time: 405,
gc.ps_marksweep.count: 0,
gc.ps_marksweep.time: 0,
datasource.primary.active: 0,
datasource.primary.usage: 0,
counter.status.200.autoconfig: 1,
counter.status.200.beans: 1,
counter.status.200.configprops: 1,
counter.status.200.dump: 1,
counter.status.200.env: 1,
counter.status.200.health: 1,
counter.status.200.info: 1,
counter.status.200.mappings: 1,
gauge.response.autoconfig: 81,
gauge.response.beans: 15,
gauge.response.configprops: 105,
gauge.response.dump: 76,
gauge.response.env: 4,
gauge.response.health: 43,
gauge.response.info: 1,
gauge.response.mappings: 4
}
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/shutdown
要真正生效，得配置文件开启
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endpoints.shutdown.enabled: true
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/trace
记录最近100个请求的信息
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[{
"timestamp": 1452955704922,
"info": {
"method": "GET",
"path": "/metrics",
"headers": {
"request": {
"Accept - Encoding": "gzip, deflate, sdch",
"Upgrade - Insecure - Requests": "1",
"Accept - Language": "zh-CN,zh;q=0.8,en;q=0.6",
"User - Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.111 Safari/537.36",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"Connection": "keep-alive",
"Host": "localhost:8080"
},
"response": {
"Content - Type": "application/json; charset=UTF-8",
"X - Application - Context": "application:8080",
"Date": "Sat, 16 Jan 2016 14:48:24 GMT",
"status": "200"
}
}
}
}, {
"timestamp": 1452951489549,
"info": {
"method": "GET",
"path": "/autoconfig",
"headers": {
"request": {
"Accept - Encoding": "gzip, deflate, sdch",
"Upgrade - Insecure - Requests": "1",
"Accept - Language": "zh-CN,zh;q=0.8,en;q=0.6",
"User - Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.111 Safari/537.36",
"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
"Connection": "keep-alive",
"Host": "localhost:8080"
},
"response": {
"Content - Type": "application/json; charset=UTF-8",
"X - Application - Context": "application:8080",
"Date": "Sat, 16 Jan 2016 13:38:09 GMT",
"status": "200"
}
}
}
}]
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以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持快网idc。
原文链接：https://segmentfault.com/a/1190000004318360
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