Spring Boot应用性能指标监控实践
在微服务架构中,Spring Boot应用的性能监控至关重要。本文将详细介绍如何通过Spring Boot Actuator实现应用性能指标监控。
基础配置
首先,在pom.xml中添加Actuator依赖:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
指标配置
在application.yml中启用监控端点:
management:
endpoints:
web:
exposure:
include: health,info,metrics,prometheus
endpoint:
health:
show-details: always
metrics:
enable:
all: true
核心监控指标
通过/actuator/metrics端点可获取以下关键指标:
- JVM内存使用:
jvm.memory.used和jvm.memory.committed - 线程数统计:
jvm.threads.live和jvm.threads.daemon - HTTP请求处理:
http.server.requests计数器 - 数据库连接池:
hikaricp.connections指标
实际监控命令
# 获取所有指标
curl http://localhost:8080/actuator/metrics
# 获取特定指标详情
curl http://localhost:8080/actuator/metrics/http.server.requests
# 获取健康状态
curl http://localhost:8080/actuator/health
自定义指标
通过MeterRegistry注册自定义指标:
@Component
public class CustomMetrics {
private final MeterRegistry meterRegistry;
public CustomMetrics(MeterRegistry meterRegistry) {
this.meterRegistry = meterRegistry;
}
public void recordProcessingTime(long timeMs) {
Timer.Sample sample = Timer.start(meterRegistry);
// 执行业务逻辑
sample.stop(Timer.builder("custom.processing.time")
.register(meterRegistry));
}
}
通过以上配置,可以实时监控应用性能,及时发现系统瓶颈。建议配合Prometheus和Grafana实现可视化监控。

讨论