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Spring Boot Tutorial

Auto-configuration, REST APIs, JPA, AOP, caching, microservices and Spring Cloud.

Spring Boot Actuator

Adds production-ready monitoring endpoints — health checks, metrics, environment info — with almost no code.

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

/actuator/health — liveness/readiness checks for load balancers & Kubernetes
/actuator/metrics — JVM, HTTP and custom application metrics
/actuator/env — active configuration properties
Expose only what you need in production; secure the endpoints