Nacos整合实际应用案例

Nacos数据隔离模型

公司->命名空间->分组->服务
命名空间通常用于隔离不同微服务之间的配置
分组用于隔离相同微服务下不同环境的配置

版本对应关系

https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E

应用案例

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.12.RELEASE</version>
    </parent>
  <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR12</spring-cloud.version>
        <spring-cloud-alibaba-version>2.2.9.RELEASE</spring-cloud-alibaba-version>
    </properties>
    <dependencyManagement>
     <dependencies>
      <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>

 <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bootstrap</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
                </dependency>
                <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
    </dependencies>

yml中配置

spring:
  application:
    name: message-demo
  cloud:
    nacos:
      discovery:
        server-addr: localhost:8848,localhost:8850,localhost:8855
        namespace: message #命名空间
        group: dev         #分组
      config:
        server-addr: localhost:8848,localhost:8850,localhost:8855
        file-extension: yaml #指定文件类型
        name: message-demo #配置ID
        refresh-enabled: true #自动刷新
        namespace: message #命名空间
        group: dev #分组
        extension-configs: #扩展配置
          - data-id: message-sharding.properties
            group: DEFAULT_GROUP
            refresh: true
        shared-configs: #共享配置
          - data-id: test-shared.yaml
            group: test01
            refresh: true

主启动类增加
@EnableDiscoveryClient
注解

服务启动成功之后控制台会打印acos registry, dev message-demo 169.254.64.5:8090 register finished代表注册成功并在Nacos的控制台可以看到服务信息