Spring Cloud Config 分布式配置中心

环境

安装RabbitMQ（如果不用bus-refresh，可不安装）

Config-Server

• 创建config-server工程

屏幕快照 2018-10-11 上午9.30.18.png 屏幕快照 2018-10-11 上午9.30.40.png 屏幕快照 2018-10-11 上午9.31.08.png

注：config server和config client两个根据需求选择

• pom.xml

<?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>

    <groupId>com.example</groupId>
    <artifactId>server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>server</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <!--cloud config配置中心-->
        <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>


        <!--spring-boot-starter web项目集成tomcat-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--spring-boot-actuator  管理工具/web 查看堆栈，动态刷新配置-->
        <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>

    <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>

• application.yml

server:
  port: 8888


# 本地
#spring:
#  cloud:
#    config:
#      server:
#        native:
#          search-locations: /Users/lichen/Documents/WorkSpace/Config/

# git
spring:
  cloud:
    config:
      server:
        git:
          #服务器仓库地址
#          uri: https://github.com/xwlichen/smartim-config-resource
          uri: https://github.com/xwlichen/config-server

          #配置文件所在目录
          search-paths: /config-resource
          username: xwlichen
          password: 123456
      #所在分支
      label: master

• bootstrap.yml(运行在application.yml之前)

spring:
#  profiles:
#    #本地
#    active: native
  cloud:
    config:
      discovery:
        enabled: true
  rabbitmq:
    host: 127.0.0.1
    port: 5672
    username: root
    password: 123456

management:
  endpoints:
    web:
      exposure:
        # spring-boot-starter-actuator 2.0版本以上得这么配置，将接口暴露出来，如果要暴露全部节点使用include: "*"
        include: "*"

• application-dev.properties

url=5555555dfdfdfd444444
spring.rabbitmq.host=127.0.0.1
spring.rabbitmq.port=5672
spring.rabbitmq.username=root
spring.rabbitmq.password=123456

• ServerAppApplication

@SpringBootApplication
// 开启config服务中心
@EnableConfigServer
// 发现和注册服务
@EnableDiscoveryClient
public class ServerApplication {

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

• 启动config-server

屏幕快照 2018-10-11 上午9.53.02.png

注：成功会返回200，但没有返回信息，因为我用的是Finchley.SR1版本，所以用actuator/info

Config-Client

• 创建config-cleint工程（如上步骤，选择config cleint）

• pom.xml

<?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>

    <groupId>com.example</groupId>
    <artifactId>config-client</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>config-client</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>

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

        <!--spring-boot-starter web项目集成tomcat-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--spring-boot-actuator  管理工具/web 查看堆栈，动态刷新配置-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </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>

• application.properties

server.port=8081
management.endpoints.web.exposure.include=refresh

• bootstrap.properties

spring.cloud.config.uri=http://127.0.0.1:8888
spring.application.name=application
spring.cloud.config.profile=dev
spring.cloud.config.label=master
spring.cloud.bus.trace.enable=true

• ClientAppApplication

@SpringBootApplication
// 发现和注册服务
//@EnableDiscoveryClient
public class ConfigClientApplication {

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

• HiControl

@RestController
@RefreshScope
public class HiControl {

    @Value("${url}")
    private String datUrl;

    @RequestMapping(value = "/hi")
    public String hi(){
        return datUrl;
    }
}

注：@RefreshScope 用于刷新配置

• 启动config-client

屏幕快照 2018-10-11 上午10.07.41.png

• 客服端手动刷新配置

屏幕快照 2018-10-11 上午10.08.28.png

<div align ="center"> 注：返回的url是修改的部分</div

屏幕快照 2018-10-11 上午10.08.42.png

• 配置中心服务端自动刷新所有配置

屏幕快照 2018-10-11 上午10.19.48.png

注：虽然返回了204，但是已经刷新了客服端的配置

屏幕快照 2018-10-11 上午10.22.32.png 屏幕快照 2018-10-11 上午10.20.04.png