Springboot中 actuator如何使用,很多新手对此不是很清楚,为了帮助大家解决这个难题,下面小编将为大家详细讲解,有这方面需求的人可以来学习下,希望你能有所收获。Springboot actuator是一个追踪各种springboot应用状态的健康检查机制,使用需要添加一个pom在启动springboot中,我们往往会看到这样的一条日志 Exposing 20 endpoint(s) beneath base path ‘/actuator’这个20是每一个springboot应用程序的健康检查点的个数,他是随着你配置文件中的配置而不同的。由于本人配置的Server信息如下所以当我们访问actuator Web信息的路径如下http://127.0.0.1:8001/api-u/actuator这里需要注意的是,如果我们配置了oauth 2的资源访问权限的时候,需要对该路径放行在配置文件中做如下配置此时我们访问http://127.0.0.1:8001/api-u/actuator的结果如下{“_links”
: {“self”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator”
,”templated”
:
false},”health”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/health”
,”templated”
:
false},”info”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/info”
,”templated”
:
false}}}具体大家可以参考这个官网说明 https://docs.spring.io/spring-boot/docs/2.0.1.RELEASE/reference/htmlsingle/中的https://docs.spring.io/spring-boot/docs/2.0.1.RELEASE/reference/htmlsingle/#production-ready-endpoints-enabling-endpoints以及 https://docs.spring.io/spring-boot/docs/2.0.1.RELEASE/reference/htmlsingle/#_auto_configured_healthindicators其中的http://127.0.0.1:8001/api-u/actuator/health就是我们需要的健康检查的具体信息{“status”
:
“DOWN”
,”details”
: {“rabbit”
: {“status”
:
“DOWN”
,”details”
: {“error”
:
“org.springframework.amqp.AmqpConnectException: java.net.ConnectException: Connection refused (Connection refused)”}},”diskSpace”
: {“status”
:
“UP”
,”details”
: {“total”
:
499963174912
,”free”
:
435209195520
,”threshold”
:
10485760}},”db”
: {“status”
:
“UP”
,”details”
: {“database”
:
“MySQL”
,”hello”
:
1}},”refreshScope”
: {“status”
:
“UP”},”discoveryComposite”
: {“status”
:
“UP”
,”details”
: {“discoveryClient”
: {“status”
:
“UP”
,”details”
: {“services”
: [“register-center”
,”user-center”]}},”eureka”
: {“description”
:
“Remote status from Eureka server”
,”status”
:
“UP”
,”details”
: {“applications”
: {“REGISTER-CENTER”
:
1
,”USER-CENTER”
:
1}}}}},”configServer”
: {“status”
:
“UNKNOWN”
,”details”
: {“error”
:
“no property sources located”}},”hystrix”
: {“status”
:
“UP”},”redis”
: {“status”
:
“UP”
,”details”
: {“version”
:
“3.2.12”}}}}这里为该进程spring支持的各种服务的健康状态,UP为在线,DOWN为下线状态,UNKNOWN为不知道。除了http://127.0.0.1:8001/api-u/actuator/health之外还有一个http://127.0.0.1:8001/api-u/actuator/info这是一个描述信息的说明,如果我们在配置文件中做如下配置则可以在http://127.0.0.1:8001/api-u/actuator/info的返回信息中看到{“app-name”
:
“user”
,”author”
:
“guanjian”
,”email”
:
“12345@xy.com”}但是我们在以上配置中可以看到的信息很少,需要激活所有的actuator端点,增加配置如下此时再次访问http://127.0.0.1:8001/api-u/actuator的结果如下{“_links”
: {“self”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator”
,”templated”
:
false},”archaius”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/archaius”
,”templated”
:
false},”auditevents”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/auditevents”
,”templated”
:
false},”beans”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/beans”
,”templated”
:
false},”health”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/health”
,”templated”
:
false},”conditions”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/conditions”
,”templated”
:
false},”configprops”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/configprops”
,”templated”
:
false},”env”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/env”
,”templated”
:
false},”env-toMatch”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/env/{toMatch}”
,”templated”
:
true},”info”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/info”
,”templated”
:
false},”logfile”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/logfile”
,”templated”
:
false},”loggers-name”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/loggers/{name}”
,”templated”
:
true},”loggers”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/loggers”
,”templated”
:
false},”heapdump”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/heapdump”
,”templated”
:
false},”threaddump”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/threaddump”
,”templated”
:
false},”metrics-requiredMetricName”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/metrics/{requiredMetricName}”
,”templated”
:
true},”metrics”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/metrics”
,”templated”
:
false},”scheduledtasks”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/scheduledtasks”
,”templated”
:
false},”sessions-sessionId”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/sessions/{sessionId}”
,”templated”
:
true},”sessions”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/sessions”
,”templated”
:
false},”httptrace”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/httptrace”
,”templated”
:
false},”mappings”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/mappings”
,”templated”
:
false},”refresh”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/refresh”
,”templated”
:
false},”features”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/features”
,”templated”
:
false},”service-registry”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/service-registry”
,”templated”
:
false}}}现在来挑几个做一下说明 http://127.0.0.1:8001/api-u/actuator/configprops 查看所有的配置信息(当然密码会隐藏) 片段”spring.cloud.config-org.springframework.cloud.bootstrap.config.PropertySourceBootstrapProperties”
: {“prefix”
:
“spring.cloud.config”
,”properties”
: {“overrideSystemProperties”
:
true
,”overrideNone”
:
false
,”allowOverride”
:
true}},”configClientProperties”
: {“prefix”
:
“spring.cloud.config”
,”properties”
: {“headers”
: {},”discovery”
: {“enabled”
:
false
,”serviceId”
:
“configserver”},”profile”
:
“default”
,”name”
:
“user-center”
,”uri”
:
“http://localhost:8888″
,”enabled”
:
true
,”failFast”
:
false
,”username”
:
“user”}},http://127.0.0.1:8001/api-u/actuator/metrics 查看某些指标的具体数值,比如JVM,tomcat等等{“names”
: [“rabbitmq.acknowledged”
,”rabbitmq.consumed”
,”jvm.buffer.memory.used”
,”jvm.memory.used”
,”jvm.gc.memory.allocated”
,”rabbitmq.connections”
,”jvm.memory.committed”
,”tomcat.global.request.max”
,”tomcat.sessions.created”
,”tomcat.sessions.expired”
,”jvm.gc.max.data.size”
,”logback.events”
,”rabbitmq.published”
,”system.cpu.count”
,”jvm.memory.max”
,”rabbitmq.rejected”
,”jvm.buffer.total.capacity”
,”jvm.buffer.count”
,”process.files.max”
,”jvm.threads.daemon”
,”rabbitmq.channels”
,”process.start.time”
,”tomcat.global.error”
,”tomcat.sessions.active.max”
,”http.server.requests”
,”tomcat.global.sent”
,”jvm.gc.live.data.size”
,”process.files.open”
,”process.cpu.usage”
,”tomcat.global.received”
,”tomcat.servlet.request”
,”jvm.gc.pause”
,”process.uptime”
,”tomcat.threads.config.max”
,”system.load.average.1m”
,”tomcat.cache.hit”
,”tomcat.servlet.error”
,”tomcat.threads.current”
,”tomcat.servlet.request.max”
,”tomcat.cache.access”
,”tomcat.sessions.active.current”
,”system.cpu.usage”
,”jvm.threads.live”
,”jvm.classes.loaded”
,”jvm.classes.unloaded”
,”tomcat.threads.busy”
,”jvm.threads.peak”
,”jvm.gc.memory.promoted”
,”tomcat.sessions.rejected”
,”tomcat.sessions.alive.max”
,”tomcat.global.request”]}比方说我们要查看JVM的最大内存,访问 http://127.0.0.1:8001/api-u/actuator/metrics/jvm.memory.max{“name”
:
“jvm.memory.max”
,”measurements”
: [{“statistic”
:
“VALUE”
,”value”
:
5.587337215E9}],”availableTags”
: [{“tag”
:
“area”
,”values”
: [“heap”
,”nonheap”]},{“tag”
:
“id”
,”values”
: [“Compressed Class Space”
,”PS Survivor Space”
,”PS Old Gen”
,”Metaspace”
,”PS Eden Space”
,”Code Cache”]}]}http://127.0.0.1:8001/api-u/actu 香港云主机ator/metrics/jvm.memory.used JVM已经使用的内存{“name”
:
“jvm.memory.used”
,”measurements”
: [{“statistic”
:
“VALUE”
,”value”
:
9.31419992E8}],”availableTags”
: [{“tag”
:
“area”
,”values”
: [“heap”
,”nonheap”]},{“tag”
:
“id”
,”values”
: [“Compressed Class Space”
,”PS Old Gen”
,”PS Survivor Space”
,”Metaspace”
,”PS Eden Space”
,”Code Cache”]}]}http://127.0.0.1:8001/api-u/actuator/beans 查看spring中注入的所有bean部分片段”spring.cloud.config-org.springframework.cloud.bootstrap.config.PropertySourceBootstrapProperties”
: {“aliases”
: [],”scope”
:
“singleton”
,”type”
:
“org.springframework.cloud.bootstrap.config.PropertySourceBootstrapProperties”
,”resource”
:
null
,”dependencies”
: []},”propertySourcesPlaceholderConfigurer”
: {“aliases”
: [],”scope”
:
“singleton”
,”type”
:
“org.springframework.context.support.PropertySourcesPlaceholderConfigurer”
,”resource”
:
“org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration”
,”dependencies”
: []}如果我们不想激活所有的端点,只激活部分端点,比如configprops,metrics,beans,health,info,配置如下访问http://127.0.0.1:8001/api-u/actuator结果如下{“_links”
: {“self”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator”
,”templated”
:
false},”beans”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/beans”
,”templated”
:
false},”health”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/health”
,”templated”
:
false},”configprops”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/configprops”
,”templated”
:
false},”info”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/info”
,”templated”
:
false},”metrics-requiredMetricName”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/metrics/{requiredMetricName}”
,”templated”
:
true},”metrics”
: {“href”
:
“http://127.0.0.1:8001/api-u/actuator/metrics”
,”templated”
:
false}}}看完上述内容是否对您有帮助呢?如果还想对相关知识有进一步的了解或阅读更多相关文章,请关注开发云行业资讯频道,感谢您对开发云的支持。
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