SpringBoot官方笔记8其他

Container Images

FROM eclipse-temurin:17-jre as builder
WORKDIR application
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} application.jar
RUN java -Djarmode=layertools -jar application.jar extract

FROM eclipse-temurin:17-jre
WORKDIR application
COPY --from=builder application/dependencies/ ./
COPY --from=builder application/spring-boot-loader/ ./
COPY --from=builder application/snapshot-dependencies/ ./
COPY --from=builder application/application/ ./
ENTRYPOINT ["java", "org.springframework.boot.loader.JarLauncher"]
$ docker build --build-arg JAR_FILE=path/to/myapp.jar .

Production-ready Features

The spring-boot-actuator module provides all of Spring Boot’s production-ready features.


    
        org.springframework.boot
        spring-boot-starter-actuator
    

Endpoints

Actuator endpoints let you monitor and interact with your application. Spring Boot includes a number of built-in endpoints and lets you add your own. For example, the health endpoint provides basic application health information.

Monitoring and Management Over HTTP

If you are developing a web application, Spring Boot Actuator auto-configures all enabled endpoints to be exposed over HTTP. The default convention is to use the id of the endpoint with a prefix of /actuator as the URL path. For example, health is exposed as /actuator/health.

Loggers

  • TRACE

  • DEBUG

  • INFO

  • WARN

  • ERROR

  • FATAL

  • OFF

  • null

Deploying Spring Boot Applications

You can deploy Spring Boot applications to a variety of cloud platforms, to virtual/real machines, or make them fully executable for Unix systems.

Kubernetes

Spring Boot auto-detects Kubernetes deployment environments by checking the environment for "*_SERVICE_HOST" and "*_SERVICE_PORT" variables. You can override this detection with the spring.main.cloud-platform configuration property.

总结

快速刷完SpringBoot官方网站,刚开始还比较能看懂,越到后面越发现,整个内容偏向于“配置”说明,能吸收和理解的知识很少,从我做的笔记也是能看出来这点。

这跟SpringBoot本身的设计也是一致的,即SpringBoot是在Spring Framework基础之上做的“自动配置”,从繁杂的xml配置中解脱出来,SpringBoot本身就是一个外壳。

学习SpirngBoot,需要对它的内核进行学习,也就是Spring Framework,还好也有官方文档,虽然有点难找:

https://docs.spring.io/spring-framework/reference/overview.html

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