SpringCloud-Config+Nacos

清疚 2023-03-14 08:12 125阅读 0赞

[SpringCloud Config3.0.0][]

# 1. 配置中心 #

<dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-config-server</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-bus-amqp</artifactId>
            </dependency>
     
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>

yml:

server:
      port: 3344
    spring:
      application:
        name: cloud-config-center
      cloud:
        config:
          server:
            git:
              uri: xxxxxxxxx         # 仓库url
              search-paths:
                - SpringCloud2020
          label: master
      rabbitmq:  # bus 用到的
        host: localhost
        port: 5672
        username: guest
        password: guest
    eureka:
      client:
        service-url:
          defaultZone:  http://localhost:7001/eureka # 注册中心可换Nacos

Main

@SpringBootApplication
    @EnableConfigServer
    public class ConfigCenterMain3344 { 
        public static void main(String[] args) { 
            SpringApplication.run(ConfigCenterMain3344.class, args);
        }
    }

# 2.Config Client #

<dependencies>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-config</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-bus-amqp</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
                <optional>true</optional>
            </dependency>
    
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>

bootstrap.yml:

server:
      port: 3355
    
    spring:
      application:
        name: config-client
      cloud:
        config:
          label: master  # 拉取分支
          name: config   # 拉取配置文件名
          profile: dev   # 拉取profile版本
          uri: http://localhost:3344 # 配置中心地址
      rabbitmq:      # bus 刷新 消息中间件
        host: localhost
        port: 5672
        username: guest
        password: guest
    eureka:
      client:
        service-url:
          defaultZone: http://localhost:7001/eureka
    management:
      endpoints:
        web:
          exposure:
            include: "*"

config :
      info : dev

测试：

@RestController
    //@RefreshScope
    public class ConfigClientController { 
    
        @Value("${config.info}")
        private String configInfo;
    
        @GetMapping("/configInfo")
        public String getConfigInfo() { 
            return configInfo;
        }
    }

通过访问 configinfo 查看是否读到了配置文件

# 3. 动态刷新 #

@RefreshScope

发送刷新请求：  
![在这里插入图片描述][20200516194711515.png]

## Bus ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70]  
配置中心yml添加：

management:
      endpoints:
        web:
          exposure:  # 暴露刷新服务端点
            include: 'bus-refresh'

一次发送，处处生效

往服务端发送刷新消息：

curl -X POST "http://localhost:3344/actuator/bus-refresh"

定点发送：  
![在这里插入图片描述][20200516200945907.png]

# Nacos配置中心 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 1]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 2]

[Nacos-Dubbo][]  
[githubNacos][]  
[官方文档][Link 1]  
[quickstart][]

--------------------

父pom

<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>

<dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            </dependency>
            
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
          
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>

bootstrap.yml：

server:
      port: 3377
    
    spring:
      application:
        name: nacos-config-client
      cloud:
        nacos:
          discovery:
            server-addr: localhost:8848 #服务注册中心地址
          config:
            server-addr: localhost:8848 #配置中心地址
            file-extension: yaml #指定yaml格式的配置

application.yml:

spring:
      profiles:
        active: dev

@RestController
    @RefreshScope //自动刷新
    public class ConfigClientController
    { 
        @Value("${config.info}")
        private String configInfo;
    
        @GetMapping("/config/info")
        public String getConfigInfo() { 
            return configInfo;
        }
    }

在 Nacos Spring Cloud 中，dataId 的完整格式如下：

$\{prefix\}-$\{spring.profile.active\}.$\{file-extension\}

prefix 默认为 spring.application.name 的值，也可以通过配置项 spring.cloud.nacos.config.prefix来配置。  
spring.profile.active 即为当前环境对应的 profile，详情可以参考 Spring Boot文档。 注意：当 spring.profile.active 为空时，对应的连接符 - 也将不存在，dataId 的拼接格式变成 $\{prefix\}.$\{file-extension\}  
file-exetension 为配置内容的数据格式，可以通过配置项 spring.cloud.nacos.config.file-extension 来配置。目前只支持 properties 和 yaml 类型。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 3]  
故需要在nacos上配置的文件名为：  
nacos-config-client-dev.yaml  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 4]  
测试：  
![在这里插入图片描述][20200516203648628.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 5]  
![在这里插入图片描述][20200516203743993.png]  
想要用到group的话：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 6]  
namespace同理：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 7]

[SpringCloud Config3.0.0]: https://cloud.spring.io/spring-cloud-config/reference/html/
[20200516194711515.png]: /images/20230312/8a3aa491edd949069413537051340583.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70]: /images/20230312/341ed0e671684fe29ac2fc74e77c222c.png
[20200516200945907.png]: /images/20230312/53b7b1c890ac4b1fab06e214c2c00e67.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 1]: /images/20230312/311d4d5cc40a4835b772326580de4679.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 2]: /images/20230312/9bab4314f10745868965eb563d1899a7.png
[Nacos-Dubbo]: http://dubbo.apache.org/zh-cn/docs/user/references/registry/nacos.html
[githubNacos]: https://github.com/alibaba/nacos
[Link 1]: https://spring-cloud-alibaba-group.github.io/github-pages/greenwich/spring-cloud-alibaba.html#_spring_cloud_alibaba_nacos_config
[quickstart]: https://nacos.io/zh-cn/docs/quick-start.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 3]: /images/20230312/7c5a715b7aad444ab440e2270c8cbf46.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 4]: /images/20230312/afd4d62b5b8b43b08d831510f758e819.png
[20200516203648628.png]: /images/20230312/376216e2d5374ae9be6fb78225d190b6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 5]: /images/20230312/60c7053a236141048103cfd2cc3bbd21.png
[20200516203743993.png]: /images/20230312/3efda29b9dae437aaf62cb617aa6630c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 6]: /images/20230312/7d4ccb7fb5004a98b6a0191b24f9894a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpdHRsZXdoaXRldmc_size_16_color_FFFFFF_t_70 7]: /images/20230312/39bbec0a0362472b9a8f08f6a2b3e703.png

SpringCloud-Config+Nacos

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