Spring Boot-monitoring management

- - 1. Monitoring and management

1. Monitoring and management

By introducing spring-boot-starter-actuator, we can use the application monitoring and management functions in the quasi-production environment provided by Spring Boot. We can operate through HTTP, JMX, SSH protocols, and automatically get audit, health and indicator information, etc.

1. Introduce dependencies

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

2. Configuration

server:
  port: 8015
spring:
  application:
    name: springboot-actuator
management:
  endpoints:
    web:
      exposure:
        include: "*" #打开所有的监控点
      base-path: /monitor #自定义监控路径默认为http://localhost:8015/actuator
  endpoint:
    health:
      show-details:  always
    shutdown:
      enabled: true #通过指定接口关闭springboot
# 描述项目基础信息
info:
  app:
    name: boot-actuator
    port: 8015
    version: 1.0.0
    author: glp

You can also configure individual permissions individually:

# 开启beans 、 mappings 访问
management.endpoints.web.exposure.include=beans,mappings

3. Access the monitoring endpoint through http

The details are as follows:

/auditevents : Display audit events exposed by the application (similar to authentication entry)
/beans: Display a complete list of all Spring Beans in the application
/caches: Publicly available cache/conditions: Shows the conditions evaluated on the configuration and automatic configuration classes and the reasons why they match or do not match
/configprops: Display a organized list of all @ConfigurationPropertie
/env: Get all environment properties
/flyway: Provide a copy of Flyway database migration information
/health: Display information about the running status of the application
/httptrace: Display HTTP tracking information (by default, the last 100 HTTP request-response exchanges)
/info: Get the customized information of the application, which is provided by the attribute at the beginning of info
/integrationgraph: Show Spring Integration diagram, need to depend on spring-integration-
core
/loggers: Display and modify the configuration of the application
/liquibase: Display all Liquibase database migrations that have been applied
/metrics/{name} : Report application metrics for the specified name
/mappings: Display a list of all @RequestMapping paths
/scheduledtasks: Show the scheduled tasks in the application
/sessions: Allows retrieval and deletion of user sessions from the session storage supported by Spring Session, and requires the use of Spring Session Servlet-based web applications
/shutdown: Make the application close normally, disabled by default
/threaddump: Take a snapshot of thread activity

(1) Visit the project description information
http://localhost:8015/monitor/info
to write a git.properties to describe git related information
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git.branch =master
git.commit.id = 3333
git.commit.time = 2017-12-12 12:12:12

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(2) Access thread information
http://localhost:8015/monitor/threaddump
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(3) HeapDump interface
Automatically generate Jvm heap dump file HeapDump, you can use the monitoring tool VisualVM to open this file to view the memory snapshot.
http://localhost:8015/monitor/headdump

(4) health
health is mainly used to check the running status of the application
http://localhost:8015/monitor/health

{
    
    "status":"UP","components":
{
    
    "diskSpace":
{
    
    "status":"UP","details":
{
    
    "total":149264121856,
"free":78478319616,
"threshold":10485760,
"exists":true}},
"ping":{
    
    "status":"UP"}}}

(5) Mappings interface
Description request mapping information
http://localhost:8015/monitor/mappings

{
    
    "contexts":{
    
    
"springboot-actuator":
{
    
    "mappings":
{
    
    "dispatcherServlets":
{
    
    "dispatcherServlet":
[{
    
    "handler":"Actuator web endpoint 'health'",
"predicate":
"{
    
    GET [/monitor/health], produces

(6) Beans interface
shows the type of bean, singleton multiple instances, aliases, full path of the class, dependency Jar, etc.
http://localhost:8015/monitor/beans

(7) Conditions interface
Check under what conditions the configuration is valid, or why the automatic configuration is invalid.
http://localhost:8015/monitor/conditions

(8) ShutDown interface
gracefully shuts down Spring Boot applications, only POST requests are supported by default

Access by POST: http://localhost:8015/monitor/shutdown
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