SpringCloud8 分钟 读完 (大约 1226 个字)

08.4 SpringCloud Config配置实战

部门微服务和注册中心微服务接入SpringCloud Config配置实战

1. Git配置文件本地配置

创建配置文件并上传至Github私有仓库
microservicecloud-config-eureka-client.yml

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spring:
  profiles:
    active:
      - dev
---
server:
  port: 7001 #注册中心占用7001端口,冒号后面必须要有空格
spring:
  profiles: dev
  application:
    name: microservicecloud-config-eureka-client
eureka:
  instance:
    hostname: eureka7001.com #冒号后面必须要有空格
  client:
    register-with-eureka: false #当前的eureka-server自己不注册进服务列表中
    fetch-registry: false #不通过eureka获取注册信息
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka/
---
server:
  port: 7001 #注册中心占用7001端口,冒号后面必须要有空格
spring:
  profiles: test
  application:
    name: microservicecloud-config-eureka-client
eureka:
  instance:
    hostname: eureka7001.com #冒号后面必须要有空格
  client:
    register-with-eureka: false #当前的eureka-server自己不注册进服务列表中
    fetch-registry: false #不通过eureka获取注册信息
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka/

microservicecloud-config-dept-client.yml

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spring:
  profiles:
    active:
      - dev
---
server:
  port: 8001
spring:
  profiles: dev
  application:
    name: microservicecloud-config-dept-client
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://localhost:3306/cloudDB01
    username: root
    password: 123456
    dbcp2:
      min-idle: 5
      initial-size: 5
      max-total: 5
      max-wait-millis: 200
mybatis:
  config-location: classpath:mybatis/mybatis.cfg.xml
  type-aliases-package: com.hellodev.entities
  mapper-locations:
    - classpath:mybatis/mapper/**/*.xml
eureka:
  client:
    #客户端注册进eureka服务列表内
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka
  instance:
    instance-id: dept-8001.com
    prefer-ip-address: true
info:
  app.name: atguigu-microservicecloud-springcloudconfig01
  company.name: www.atguigu.com
  build.artifactId: ${project.artifactId}
  build.version: ${project.version}
---
server:
  port: 8001
spring:
  profiles: test
  application:
    name: microservicecloud-config-dept-client
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driver-class-name: org.gjt.mm.mysql.Driver
    url: jdbc:mysql://localhost:3306/cloudDB02
    username: root
    password: 123456
    dbcp2:
      min-idle: 5
      initial-size: 5
      max-total: 5
      max-wait-millis: 200
mybatis:
  config-location: classpath:mybatis/mybatis.cfg.xml
  type-aliases-package: com.hellodev.entities
  mapper-locations:
    - classpath:mybatis/mapper/**/*.xml  

eureka:
  client:
    #客户端注册进eureka服务列表内
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka
  instance:
    instance-id: dept-8001.com
    prefer-ip-address: true
info:
  app.name: atguigu-microservicecloud-springcloudconfig02
  company.name: www.atguigu.com
  build.artifactId: ${project.artifactId}
  build.version: ${project.version}

2. Config版的eureka服务端

2.1 新建工程

创建microservicecloud-config-eureka-client-7001工程,步骤省略.

2.2 POM

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.hellodev</groupId>
        <artifactId>atguigu-microservicecloud</artifactId>
        <version>0.0.1</version>
    </parent>

    <artifactId>microservicecloud-config-eureka-client-7001</artifactId>
    <version>0.0.1</version>
    <dependencies>
        <!-- SpringCloudConfig配置 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>

        <!--eureka-server服务端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
        <!-- 修改后立即生效，热部署 -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>
</project>

2.3 bootstrap.yml

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spring:
  cloud:
    config:
      #需要从github上读取的资源名称，注意没有yml后缀名
      name: microservicecloud-config-eureka-client
      profile: dev
      label: master
      #SpringCloudConfig获取的服务地址
      uri: http://config-3344.com:3344

2.4 application.yml

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spring:
  application:
    name: microservicecloud-config-eureka-client

2.5 主启动类

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@SpringBootApplication
// EurekaServer服务器端启动类,接受其它微服务注册进来
@EnableEurekaServer
public class ConfigEureka7001Application {
   public static void main(String[] args) {
      SpringApplication.run(ConfigEureka7001Application.class, args);
   }
}

2.6 验证

  • 先启动microservicecloud-config-3344微服务，保证Config总配置是OK的
  • 再启动microservicecloud-config-eureka-client-7001微服务
  • 访问url http://eureka7001.com:7001/
  • 出现eureak主页表示成功启动

3. Config版的dept微服务

3.1 创建工程

参考之前的8001拷贝后新建工程microservicecloud-config-dept-client-8001

3.2 POM

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         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.hellodev</groupId>
        <artifactId>atguigu-microservicecloud</artifactId>
        <version>0.0.1</version>
    </parent>

    <artifactId>microservicecloud-config-dept-client-8001</artifactId>
    <version>0.0.1</version>

    <dependencies>
        <dependency><!-- 引入自己定义的 api 通用包，可以使用 Dept 部门Entity -->
            <groupId>com.hellodev</groupId>
            <artifactId>microservicecloud-api</artifactId>
            <version>${project.version}</version>
        </dependency>

        <!-- SpringCloudConfig配置 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>

        <!--将微服务provider侧注册进eureka -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <!--actuator监控信息完善-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jetty</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-test</artifactId>
        </dependency>
        <!--修改后立即生效，热部署-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>springloaded</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
        </dependency>
    </dependencies>
</project>

3.3 bootstrap.yml

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spring:
  cloud:
    config:
      #需要从github上读取的资源名称，注意没有yml后缀名
      name: microservicecloud-config-dept-client
      #profile配置是什么就取什么配置dev or test
      profile: dev
#      profile: test
      label: master
      #SpringCloudConfig获取的服务地址
      uri: http://config-3344.com:3344

3.4 application.yml

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spring:
  application:
    name: microservicecloud-config-dept-client

3.5 主启动类

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@SpringBootApplication
// 本服务启动后会自动注册进 eureka 服务中
@EnableEurekaClient
// 服务发现
@EnableDiscoveryClient
public class ConfigClientProviderDept8001Application {
   public static void main(String[] args) {
      SpringApplication.run(ConfigClientProviderDept8001Application.class, args);
   }
}

3.6 验证

本地换配置成dev

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curl http://localhost:8001/dept/list
[
    {
        "deptno": 1,
        "dname": "开发部",
        "db_source": "cloudDB01"
    },
    {
        "deptno": 2,
        "dname": "人事部",
        "db_source": "cloudDB01"
    },
    {
        "deptno": 3,
        "dname": "财务部",
        "db_source": "cloudDB01"
    },
    {
        "deptno": 4,
        "dname": "市场部",
        "db_source": "cloudDB01"
    },
    {
        "deptno": 5,
        "dname": "运维部",
        "db_source": "cloudDB01"
    },
    {
        "deptno": 6,
        "dname": "AI",
        "db_source": "cloudDB01"
    }
]

可以看到数据库配置是01

test配置默认访问

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curl http://localhost:8001/dept/list
[
    {
        "deptno": 1,
        "dname": "开发部",
        "db_source": "cloudDB02"
    },
    {
        "deptno": 2,
        "dname": "人事部",
        "db_source": "cloudDB02"
    },
    {
        "deptno": 3,
        "dname": "财务部",
        "db_source": "cloudDB02"
    },
    {
        "deptno": 4,
        "dname": "市场部",
        "db_source": "cloudDB02"
    },
    {
        "deptno": 5,
        "dname": "运维部",
        "db_source": "cloudDB02"
    }
]

可以看到数据库配置是02

资源获取

公众号回复 : SpringCloud Config配置实战 获取本节代码

公众号回复 : SpringCloud思维导图

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