Spring Cloud Alibaba Nacos集成Spring Boot Actuator

本文主要是介绍Spring Cloud Alibaba Nacos集成Spring Boot Actuator，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

项目代码

pom文件

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>com.xiaobu</groupId><artifactId>spring-cloud-alibaba-nacos-config-demo</artifactId><version>0.0.1-SNAPSHOT</version></parent><artifactId>nacos-config-actuator</artifactId><version>0.0.1-SNAPSHOT</version><name>nacos-config-actuator</name><description>nacos-config-actuator</description><properties><!--        解决mvn compile 编码GBK的不可映射字符--><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><spring.boot.version>2.2.4.RELEASE</spring.boot.version><spring.cloud.version>Hoxton.SR1</spring.cloud.version><spring.cloud.alibaba.version>2.2.0.RELEASE</spring.cloud.alibaba.version></properties><!--引入 Spring Boot、Spring Cloud、Spring Cloud Alibaba 三者 BOM 文件，进行依赖版本的管理，防止不兼容。在 https://dwz.cn/mcLIfNKt 文章中，Spring Cloud Alibaba 开发团队推荐了三者的依赖关系--><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>${spring.boot.version}</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring.cloud.version}</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>${spring.cloud.alibaba.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><!--    这个文件的依赖冲突不能exclude否则连不上nacos--><dependencies><!-- 引入 SpringMVC 相关依赖，并实现对其的自动配置 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- 引入 Spring Cloud Alibaba Nacos Discovery 相关依赖，将 Nacos 作为注册中心，并实现对其的自动配置 --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><!-- 引入 Spring Cloud Alibaba config 相关依赖 --><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId></dependency><!--        jasypt--><dependency><groupId>com.github.ulisesbocchio</groupId><artifactId>jasypt-spring-boot-starter</artifactId><version>3.0.3</version></dependency><!-- 方便等会写单元测试 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!-- 实现对 Actuator 的自动化配置 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency></dependencies></project>

bootstrap.properties

# Nacos Config 配置项，对应 NacosConfigProperties 配置属性类
spring.application.name=nacos-config-actuator
# Nacos 服务器地址
spring.cloud.nacos.config.server-addr=127.0.0.1:8848
# 使用的 Nacos 的命名空间，默认为 null
spring.cloud.nacos.config.namespace=3aafe1ff-9715-4c49-9b98-fcd5492d7050
# 使用的 Nacos 配置分组，默认为 DEFAULT_GROUP
spring.cloud.nacos.config.group=DEFAULT_GROUP
# 使用的 Nacos 配置集的 dataId，默认为 spring.application.name 需要copy一份 nacos-config相同的配置 dataId改成nacos-config-actuator
spring.cloud.nacos.config.name=
# 使用的 Nacos 配置集的 dataId 的文件拓展名，同时也是 Nacos 配置集的配置格式，默认为 properties
spring.cloud.nacos.config.file-extension=properties

application.properties

# Health 端点配置项，对应 HealthProperties 配置类
# 何时显示完整的健康信息。默认为 NEVER 都不展示。可选 WHEN_AUTHORIZED 当经过授权的用户；可选 ALWAYS 总是展示。
management.endpoint.health.show-details=ALWAYS
# Actuator HTTP 配置项，对应 WebEndpointProperties 配置类
# 需要开放的端点。默认值只打开 health 和 info 两个端点。通过设置 * ，可以开放所有端点。
management.endpoints.web.exposure.include=*

启动类 NacosConfigActuatorApplication

package com.xiaobu;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;/*** The type Nacos config refresh application.** @author 小布*/
@SpringBootApplication
public class NacosConfigActuatorApplication {/*** The entry point of application.** @param args the input arguments*/public static void main(String[] args) {SpringApplication.run(NacosConfigActuatorApplication.class, args);}}

控制器 ActuatorController

package com.xiaobu.controller;import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;/*** @author 小布*/
@RestController
@RequestMapping("/actuator")
@RefreshScope
public class ActuatorController {/*** @NacosValue(value = "${order.pay-timeout-seconds}")*/@Value(value = "${order.pay-timeout-seconds}")private Integer payTimeoutSeconds;/*** @NacosValue(value = "${order.create-frequency-seconds}")*/@Value(value = "${order.create-frequency-seconds}")private Integer createFrequencySeconds;@GetMapping("/test")public String test() {return String.format("order.pay-timeout-seconds:%s,order.create-frequency-seconds:%s", payTimeoutSeconds, createFrequencySeconds);}}

nacos Data Id 为nacos-config-actuator GROUP为 DEFAULT_GROUP 配置集内容

#程序启动端口
server.port=8002
# 订单支付超时时长，单位：秒。
order.pay-timeout-seconds=6666
# 订单创建频率，单位：秒
order.create-frequency-seconds=7777

测试

访问 http://localhost:8002/actuator/nacos-config

得到

{"NacosConfigProperties": {"serverAddr": "127.0.0.1:8848","encode": null,"group": "DEFAULT_GROUP","prefix": null,"fileExtension": "properties","timeout": 3000,"maxRetry": null,"configLongPollTimeout": null,"configRetryTime": null,"enableRemoteSyncConfig": false,"endpoint": null,"namespace": "3aafe1ff-9715-4c49-9b98-fcd5492d7050","accessKey": null,"secretKey": null,"contextPath": null,"clusterName": null,"name": "","sharedConfigs": null,"extensionConfigs": null,"refreshEnabled": true,"extConfig": null,"sharedDataids": null,"configServiceProperties": {"name": "","secretKey": "","contextPath": "","namespace": "3aafe1ff-9715-4c49-9b98-fcd5492d7050","fileExtension": "properties","enableRemoteSyncConfig": "false","configLongPollTimeout": "","configRetryTime": "","encode": "","serverAddr": "127.0.0.1:8848","maxRetry": "","group": "DEFAULT_GROUP","clusterName": "","accessKey": "","endpoint": ""},"refreshableDataids": null},"RefreshHistory": [],"Sources": [{"lastSynced": "2021-09-23 09:58:30","dataId": "nacos-config-actuator.properties"},{"lastSynced": "2021-09-23 09:58:30","dataId": "nacos-config-actuator"}]
}

NacosConfigProperties–>Nacos配置项
RefreshHistory": [],–> //Nacos配置集的刷新历史
“Sources”: []–> //Nacos配置集的更新时间

访问 http://localhost:8002/actuator/nacos-config

可以查看Nocas配置中心的链接状态等信息

{"status": "UP","components": {"discoveryComposite": {"status": "UP","components": {"discoveryClient": {"status": "UP","details": {"services": ["nacos-config-actuator"]}}}},"diskSpace": {"status": "UP","details": {"total": 377486307328,"free": 362160472064,"threshold": 10485760}},"nacosConfig": {"status": "UP"},"nacosDiscovery": {"status": "UP"},"ping": {"status": "UP"},"refreshScope": {"status": "UP"}}
}