深入理解spring boot 监控

目录

• 一、指标监控
• 二、常用的监控端点
•  三、定制EndPoint
• 四、spring boot admin（可以使用）

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

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

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.mavenProjectName = @project.artifactId@
info.mavenProjectVersion=@project.version@

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！");
    }
}

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");
    }
 
}

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

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

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