概述
-
Spring-boot-starter-actuator 是用于监控与管理的，只需引入依赖库就能为应用添加监控端点
- 其中 /health 端点能够全面你检查应用监控状态
快速入门
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
- 控制台可看到 Actuator 为我们添加了许多端点
2017-12-22 14:13:14.781 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EnvironmentMvcEndpoint.value(java.lang.String)
2017-12-22 14:13:14.781 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env || /env.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.782 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/heapdump || /heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2017-12-22 14:13:14.783 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/info || /info.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.784 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/health || /health.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(javax.servlet.http.HttpServletRequest,java.security.Principal)
2017-12-22 14:13:14.784 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/trace || /trace.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.785 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/features || /features.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.785 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/mappings || /mappings.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.786 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/auditevents || /auditevents.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public org.springframework.http.ResponseEntity<?> org.springframework.boot.actuate.endpoint.mvc.AuditEventsMvcEndpoint.findByPrincipalAndAfterAndType(java.lang.String,java.util.Date,java.lang.String)
2017-12-22 14:13:14.786 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/configprops || /configprops.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.787 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/archaius || /archaius.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-12-22 14:13:14.787 INFO 9441 --- [ main] o.s.b.a.e.mvc.EndpointHandlerMapping : Mapped "{[/env],methods=[POST]}" onto public java.lang.Object org.springframework.cloud.context.environment.EnvironmentManagerMvcEndpoint.value(java.util.Map<java.lang.String, java.lang.String>)
- 比如访问 /health 端点，可以获得如下的应用健康信息
{"description":"Composite Discovery Client","status":"UP"}
常用端点
- 某些端点属于敏感信息，需要关闭权限认证才能查看 management.security.enabled=false
| URL |
描述 |
| /autoconfig |
该端点用于获取应用自动化配置报告，帮助我们方便的找到自动化配置为什么没有生效 |
| /beans |
描述上下文每个 bean 的情况，包括 Java 类型已经注入它的 bean，作用域等信息 |
| /enc |
应用程序可用的所有环境属性列表，无论这些属性是否用到，其中包括环境变量、JVM 属性、命令行参数，以及配置文件 |
| /configprops |
获取属性如何进行设置（注入或其它方式） |
| /mappings |
罗列出应用程序的全部接口 |
| /metrics |
显示应用程序内存情况、线程池、JVM等信息 |
| /trace |
返回HTTP跟踪信息，保留最近 100 条请求，包括请求的方法、路径等详细信息 |
| /info |
显示应用的信息 |
| /health |
显示应用的监控信息 |
| /dump |
显示程序运行中的线程信息 |
| /shutdown |
通过该端点关闭应用程序的远程操作，需要在配置文件里开启 endpoints.shutdown.enabled=true |
