如何使用弹簧靴2和千分尺测量维修方法

java spring spring-boot spring-boot-actuator

2022-09-01 06:33:34

我在Spring Boot 2（RC1）上开始了我的第一个项目。多亏了已经很好的文档，从Spring Boot 1.x开始，这并不难。

但是，现在我想整合指标，我正在徘徊。据我所知，目前只有默认提供的指标的文档。但我还想测量服务级别执行时间以及 dynamodb 中使用的时间。

编辑我正在寻找使用Micrometer的解决方案，Micrometer是spring-boot 2附带的新执行器库中使用的库。

有没有关于如何做到这一点的指南？从此我读到，对于任意的弹簧豆，还没有简单的基于注释的解决方案。s.o.能否给我一个示例/文档链接，说明如何对下面的方法进行计量？

@Service
@Timed
public class MyService {
    public void doSomething() {
        ...;
    }
}

答案 1

@io.micrometer.core.annotation.Timed由于范围缩小，注释似乎与自定义调用不符，在您的问题的链接中提到了它。

您需要手动设置一个方面：

@Configuration
@EnableAspectJAutoProxy
public class AutoTimingConfiguration {
    @Bean
    public TimedAspect timedAspect(MeterRegistry registry) {
        return new TimedAspect(registry);
        }
}

这种方式方法如下：

@Timed("GET_CARS")
public List<Car> getCars(){
        return Lists.newArrayList();
}

将在（默认）终结点中生成指标。GET_CARS/actuator/metrics

答案 2

这里有一个小样本，应该可以让你去。还有更多变体未在此处显示。（另外：现场注入仅用于简洁。您不必将调用的方法名称放入标记中。您还可以将其作为指标名称本身的一部分。只是想展示你能做什么。Timer.record()

2018-03-12更新：已引入一个，以便您也可以使用注释。现在，您需要自己注册。（但是，当您在Spring-MVC或Jersey资源上有自定义注释时，您需要小心。Michal Stepan在后续回答中已经提到了这一点。Micrometer 1.0.0TimedAspect@TimedBean@Timed

package io.github.mweirauch.micrometered.eval;

import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;

import io.micrometer.core.annotation.Timed;
import io.micrometer.core.aop.TimedAspect;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Timer;
import io.micrometer.core.instrument.Timer.Sample;

@Configuration
@EnableAspectJAutoProxy
public class TimingStuff {

    @Service
    static class MyService {

        @Autowired
        private MeterRegistry registry;

        public void helloManual() {
            // you can keep a ref to this; ok to call multiple times, though
            Timer timer = Timer.builder("myservice").tag("method", "manual").register(registry);

            // manually do the timing calculation
            long start = System.nanoTime();
            doSomething();
            timer.record(System.nanoTime() - start, TimeUnit.NANOSECONDS);
        }

        public void helloSupplier() {
            Timer timer = Timer.builder("myservice").tag("method", "supplier").register(registry);

            // execution of the method is timed internally
            timer.record(() -> doSomething());
        }

        public void helloSample() {
            Timer timer = Timer.builder("myservice").tag("method", "sample").register(registry);

            // records time taken between Sample creation and registering the
            // stop() with the given Timer
            Sample sample = Timer.start(registry);
            doSomething();
            sample.stop(timer);
        }

        // TimedAspect adds "class" and "method" tags
        @Timed(value = "myservice.aspect")
        public void helloAspect() {
            doSomething();
        }

        private void doSomething() {
            try {
                Thread.sleep(50);
            } catch (InterruptedException e) {
                //
            }
        }

    }

    @Autowired
    private MyService myService;

    @Bean
    TimedAspect timedAspect(MeterRegistry registry) {
        return new TimedAspect(registry);
    }

    @Scheduled(fixedRate = 1000)
    public void postConstruct() {
        myService.helloManual();
        myService.helloSupplier();
        myService.helloSample();
        myService.helloAspect();
    }

}

如果你去普罗米修斯，你最终会得到这样的东西：

# HELP myservice_seconds  
# TYPE myservice_seconds summary
myservice_seconds_count{application="micrometered",method="manual",} 4.0
myservice_seconds_sum{application="micrometered",method="manual",} 0.200378014
myservice_seconds_max{application="micrometered",method="manual",} 0.050115291
myservice_seconds_count{application="micrometered",method="supplier",} 4.0
myservice_seconds_sum{application="micrometered",method="supplier",} 0.200393455
myservice_seconds_max{application="micrometered",method="supplier",} 0.05011635
myservice_seconds_count{application="micrometered",method="sample",} 4.0
myservice_seconds_sum{application="micrometered",method="sample",} 0.200527005
myservice_seconds_max{application="micrometered",method="sample",} 0.050250191
# HELP myservice_aspect_seconds  
# TYPE myservice_aspect_seconds summary
myservice_aspect_seconds_count{application="micrometered",class="io.github.mweirauch.micrometered.eval.TimingStuff$MyService",method="helloAspect",} 4.0
myservice_aspect_seconds_sum{application="micrometered",class="io.github.mweirauch.micrometered.eval.TimingStuff$MyService",method="helloAspect",} 0.201824272
myservice_aspect_seconds_max{application="micrometered",class="io.github.mweirauch.micrometered.eval.TimingStuff$MyService",method="helloAspect",} 0.051014296