spring boot 监控

一、指标监控

引入jar包:

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

以web方式开启:

#开启全部的
management.endpoints.enabled-by-default=true
#web 方式暴露
management.endpoints.web.exposure.include=*

 

二、常用的监控端点

看这个:传送门

 最常用的:

  • health:健康状况,查看应用是否可用
  • metrics:运行时指标,JVM、线程等相关内容(重要)
  • loggers:日志记录

 三、定制EndPoint

 定制组件健康信息,比较简单,同时也可以实现接口方式:

package com.example.demo;

import org.springframework.boot.actuate.health.AbstractHealthIndicator;
import org.springframework.boot.actuate.health.Health;
import org.springframework.stereotype.Component;

import java.util.HashMap;
import java.util.Map;

/**
 * @author Administrator
 */
@Component
public class MyComHealthIndicator extends AbstractHealthIndicator {

    /**
     * 真实的检查方法
     * @param builder
     * @throws Exception
     */
    @Override
    protected void doHealthCheck(Health.Builder builder) throws Exception {
        Map<String, Object> map = new HashMap<>();
        if(1==1){
            builder.up();
            map.put("count", 1);
            map.put("msg", "健康");
        }else{
            builder.down();
            map.put("msg", "超时");
        }
        builder.withDetail("code", 100)
                .withDetails(map);
    }
}

 

 INFO Endpoint 的定义:

1、配置文件直接定义:

info.mavenProjectName = @project.artifactId@
[email protected]@

2、写代码:

package com.example.demo;

import org.springframework.boot.actuate.info.Info;
import org.springframework.boot.actuate.info.InfoContributor;
import org.springframework.stereotype.Component;

@Component
public class AppInfo implements InfoContributor {

    @Override
    public void contribute(Info.Builder builder) {
        builder.withDetail("msg", "真他吗帅!");
    }
}

metrics定制endpoint,直接使用MeterRegistry。

自定义Endpoint,监控端点:

package com.example.demo;

import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
import org.springframework.boot.actuate.endpoint.annotation.WriteOperation;
import org.springframework.stereotype.Component;

import java.util.Collections;
import java.util.Map;

@Component
@Endpoint(id = "myEndPoint")
public class EndPoint {

    @ReadOperation
    public Map<String, Object> read(){
        return Collections.singletonMap("MG", "MG GOGO");
    }

    @WriteOperation
    public void write(){
        System.out.println("累");
    }

}

访问自定义的指标的时候,访问的就是read方法

四、spring boot admin(可以使用)

准备一个 server,会定时去获取各个服务的相关内容。

<dependency>
    <groupId>de.codecentric</groupId>
    <artifactId>spring-boot-admin-starter-server</artifactId>
</dependency>

客户端注册:

        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-client</artifactId>
        </dependency>

配置属性文件:

spring:
  application:
    name: admin-client
  boot:
    admin:
      client:
        url: http://localhost:8769
        interface:#使用IP注册
            prefer-ip: ture
server:
  port: 8768

management:
  endpoints:
    web:
      exposure:
        include: '*'
  endpoint:
    health:
      show-details: ALWAYS

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转载自blog.csdn.net/liming0025/article/details/120980720