SpringCloudConfig + CloudBus + WebHooks +RibbitMQ,实现配置集中管理和自动刷新

一、概述

springCloudConfig同一配置服务,其实就是单独创建一个服务,专门用来管理其它所有服务的配置文件,其它微服务通过与这个配置服务建立连接,拉取配置到各自的服务环境中,springCloudConfig与git仓库关联,相当于先将所有微服务的配置文件放在git远程仓库上,springCloudConfig服务从git拉取配置,其它微服务从springCloudConfig服务上拉取各自的配置。从而就实现了多个微服务配置文件的集中管理。

二、实现步骤和注意点:

1.创建服务端(用来从git仓库拉取配置文件)
  microservice-config-server:

(1)、pom:

<?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>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.base</groupId>
    <artifactId>microservice-config-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>microservice-config-server</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Dalston.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-amqp</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
        <!-- 实现通过端点refresh手动刷新 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-monitor</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <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>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

 (2)、启动类:

@SpringBootApplication
@EnableConfigServer
@EnableDiscoveryClient
public class MicroserviceConfigServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(MicroserviceConfigServerApplication.class, args);
    }

}

 主要是加上@EnableConfigServer,表示当前服务是个配置服务。

(3)、yml配置

server:
  port: 9009    #本服务的端口
spring:
  application:
    name: microservice-config-server   #本服务名称
  cloud:
    config:
      server:
        git:                           #git地址
          uri: https://github.com/47Gamer-github/spring-cloud-config.git
          username: 47Gamer-github
          password: ????
#          clone-on-start: true
  rabbitmq:
    addresses: 127.0.0.1:5672   #mq服务器地址
    username: 47Gamer        #账号
    password: ????????          #密码
management:                     #开放所有端口
  endpoints:
    web:
      exposure:
        include: "*"
  security:                    #关闭安全验证
    enabled: false
eureka:                        #注册到eureka设置
  client:
    serviceUrl:
      defaultZone: http://localhost:1001/eureka/
  instance:
    instance-id: ${spring.cloud.client.ipAddress}:${server.port}  #设置服务在注册中心的实例id
    prefer-ip-address: true 

这个yml文件主要就是:

  • 配置了git地址(因为此配置服务需要从git仓库上拉取所有的配置文件)
  • 配置了rabbitMq仓库地址,因为此配置服务需要建立一个消息队列,用于自动刷新配置到各个与之关联的微服务中去(后面会说到的springCloudBus)
  • 配置eureka注册中心地址,用于将此服务注册上去。

2.创建客户端(用来从配置服务端仓库拉取配置文件)

(1)、pom:

<?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>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.base</groupId>
    <artifactId>microservice-config-client</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>microservice-config-client</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Dalston.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- 实现Config的客户端配置 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        </dependency>
        <!-- 实现通过端点refresh手动刷新 -->
        <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.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <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>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

(2)、bootstrap.yml:

spring:
        application:
          name: microservice-foo                            #这里对应的是git仓库里面的配置文件application-profile中的application部分
        cloud:
          config:
            #      uri: http://localhost:9009
            profile: dev                                    #这里对应的是git仓库里面的配置文件application-profile中的profile部分
            label: master
            discovery:
              enabled: true                                  # 表示使用服务发现组件中的Config Server,而不自己指定Config Server的uri,默认false
              service-id: microservice-config-server         # 指定Config Server在服务发现中的serviceId,默认是configserver
          bus:
            trace:
              enabled: true
          rabbitmq:
            addresses: 127.0.0.1:5672   #mq服务器地址
            username: 47Gamer        #账号
            password: ????????          #密码

 主要是配置了

<1>、从那个配置服务端拉取配置文件(service-id: microservice-config-server)
<2>、拉取仓库里面对应的文件中的属性(spring.application.name和config.profile和config.label)

(3)、application.yml:

server:
  port: 9008
management:                    #开放所有端点
  endpoints:
    web:
      exposure:
        include: "*"
  security:                     #关闭安全验证
    enabled: false
eureka:
  client:
    serviceUrl:
      defaultZone: http://localhost:1001/eureka/
  instance:
    instance-id: ${spring.cloud.client.ipAddress}:${server.port}  #设置服务在注册中心的实例id
    prefer-ip-address: true

(4)、创建一个配置类

@Component
@RefreshScope
public class ConfigProperties {

    @Value("${encrypt.key}")
    private String key;

    public String getKey() {
        return key;
    }

    public void setKey(String key) {
        this.key = key;
    }
}

 @RefreshScope这个注解表示,git仓库的文件更新之后,也会更新被@RefreshScope标注的属性值(可以直接标注在类上,也可以直接标注到具体的属性值上)。

手动更新: post方式请求配置服务端的/bus/refresh端点,就可以更新所有与这个服务端想关联的微服务的配置属性。

自动更新:

也就是在git仓库修改文件属性后,不需要手动请求服务端的/bus/refresh端点,自动更新。比如是gitHub远程仓库,那么需要设置仓库的webhook地址为服务端的/bus/refresh端点地址,设置好了之后,修改git文件,直接触发 服务端ip:端口/bus/refresh这个请求.从而实现自动更新。

注意:webhook地址只能设置为公网地址,设置为内网地址是不能生效的。

posted @ 2020-08-05 16:28  47号Gamer丶  阅读(235)  评论(0编辑  收藏  举报