Services need to be monitored. In the SpringBoot project, which monitoring modules do you commonly use? actuator?admin?
When a Spring Boot application is running, the developer needs to monitor the Spring Boot application in real time to obtain the alarm requirements of the project. Spring Boot provides an actuator to help the developer obtain the runtime data of the application.
Adding endpoint configuration in Spring Boot is quite simple. Just add
spring-boot-starter-actuator to add related dependencies
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> <version>2.3.1.RELEASE</version></dependency>
The commonly used endpoints are as follows:
Common endpoints are listed as follows, you can try them in detail one by one:
/info Application basic information/health health information/metrics running indicators/env environment variable information/loggers log related information/dump thread related information/trace request call trace
Most of these endpoints are enabled by default. If you want to enable an endpoint, you need to configure the following in the configuration file.
endpoints: metrics: sensitive: false
At this time sensitive is closed.
For example: here is an example, whether to access the online interface
localhost:8080/actuator/health
The output of the browser at this time is:
Endpoint response cache
Some endpoints without parameters will be cached. Search for the official account: MarkerHub, follow the reply [vue] to get the introductory tutorial for the front and back ends!
management: endpoint: auditevents: cache: time-to-live: 100s
The configuration above shows that the cache reaches 100s
Path mapping
The access path can be mapped.
management: endpoints: web: base-path: / path-mapping: health: healthcheck
At this time, the access path is changed from the original
localhost:8080/actuator/health to
localhost:8080/healthcheck
CORS
Perform cross-domain operations. You can quickly enable CORS support through the configuration file.
management: endpoints: web: cors: allowed-origins: http: allowed-methods: *
In the upper part, processing is allowed, any request from http://localhost:8091, and the allowed method is arbitrary.
Add related dependencies.
<dependency> <groupId>de.codecentric</groupId> <artifactId>spring-boot-admin-starter-server</artifactId> <version>2.2.3</version></dependency>
Add relevant annotations to the startup class:
package com.example.demo;import de.codecentric.boot.admin.server.config.EnableAdminServer;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication@EnableAdminServerpublic class DemoApplication { public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
配置完成以后，输入链接，进行访问。
http:
再次添加 client 端
<dependency> <groupId>de.codecentric</groupId> <artifactId>spring-boot-admin-starter-client</artifactId> <version>2.2.3</version></dependency>
书写配置文件
spring: boot: admin: client: url: http:
此时查看 admin
查看其健康度
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