SpringCloud高可用配置中心Config详解

<?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>
    <!-- 三坐标 -->
    <groupId>com.zwc</groupId>
    <artifactId>springcloud-config-eureka-commons</artifactId>
    <version>1.0</version>
    <!-- 工程名称和描述 -->
    <name>springcloud-config-eureka-commons</name>
    <description>公用工程</description>
    <!-- 打包方式 -->
    <packaging>jar</packaging>
    <!-- 在 properties下声明相应的版本信息，然后在dependency下引用的时候用 ${} 就可以引入该版本jar包了 -->
    <properties>
        <!-- 编码 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- jdk -->
        <java.version>1.8</java.version>
        <!-- SpringBoot -->
        <platfORM-bom.version>Cairo-SR3</platform-bom.version>
        <!-- SpringCloud -->
        <spring-cloud-dependencies.version>Finchley.RELEASE</spring-cloud-dependencies.version>
    </properties>
    <!-- 加入依赖 -->
    <dependencies>
    </dependencies>
    <!-- 依赖 jar 包版本管理的管理器 -->
    <!-- 如果 dependencies 里的 dependency 自己没有声明 version 元素，那么 maven 就此处来找版本声明。 -->
    <!-- 如果有，就会继承它；如果没有就会报错，告诉你没有版本信息 -->
    <!-- 优先级：如果 dependencies 里的 dependency 已经声明了版本信息，就不会生效此处的版本信息了 -->
    <dependencyManagement>
        <dependencies>
            <!-- SpringBoot -->
            <dependency>
                <groupId>io.spring.platform</groupId>
                <artifactId>platform-bom</artifactId>
                <version>${platform-bom.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- SpringCloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud-dependencies.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <!-- 插件依赖 -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

- springcloud-config-eureka
? - config-repo
? ? -?system-dev.properties
? ? -?system-online.properties
? ? -?system-uat.properties
  + springcloud-config-eureka-commons
  + springcloud-config-eureka-service

<?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>

    <!-- 继承父 -->
    <parent>
        <groupId>com.zwc</groupId>
        <artifactId>springcloud-config-eureka-service</artifactId>
        <version>1.0</version>
    </parent>
    <!-- 三坐标 -->
    <groupId>com.zwc</groupId>
    <artifactId>springcloud-config-eureka-registry-service</artifactId>
    <version>1.0</version>
    <!-- 工程名称描述 -->
    <name>springcloud-config-eureka-registry-service</name>
    <description>注册中心</description>
    <!-- 打包方式 -->
    <packaging>jar</packaging>
    <!-- 在 properties下声明相应的版本信息，然后在dependency下引用的时候用 ${} 就可以引入该版本jar包了 -->
    <properties>
    </properties>
    <!-- 加入依赖 -->
    <dependencies>
        <!-- commons工程 依赖 -->
        <dependency>
            <groupId>com.zwc</groupId>
            <artifactId>springcloud-config-eureka-commons</artifactId>
            <version>1.0</version>
        </dependency>
        <!-- 服务注册中心 -->
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    </dependencies>
    <!-- 插件依赖 -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

# 端口
server:
  port: 8761
# 应用名称
spring:
  application:
    name: eureka-server
eureka:
  instance:
    # 使用 ip 代替实例名
    prefer-ip-address: true
    # 实例的主机名
    hostname: ${spring.cloud.client.ip-address}
    # 实例的 ID 规则
    instance-id: ${spring.cloud.client.ip-address}:${spring.application.name}:${server.port}
  client:
    # 是否向注册中心注册自己
    registerWithEureka: false
    # 是否向注册中心获取注册信息
    fetchRegistry: false
    serviceUrl:
      # 注册中心地址
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

package com.zwc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class SpringcloudConfigEurekaRegistryServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringcloudConfigEurekaRegistryServiceApplication.class, args);
    }
}

<?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>

    <!-- 继承父 -->
    <parent>
        <groupId>com.zwc</groupId>
        <artifactId>springcloud-config-eureka-service</artifactId>
        <version>1.0</version>
    </parent>
    <!-- 三坐标 -->
    <groupId>com.zwc</groupId>
    <artifactId>springcloud-config-eureka-serverfirst-service</artifactId>
    <version>1.0</version>
    <!-- 工程名称描述 -->
    <name>springcloud-config-eureka-serverfirst-service</name>
    <description>config server</description>
    <!-- 打包方式 -->
    <packaging>jar</packaging>
    <!-- 在 properties下声明相应的版本信息，然后在dependency下引用的时候用 ${} 就可以引入该版本jar包了 -->
    <properties>
    </properties>
    <!-- 加入依赖 -->
    <dependencies>
        <!-- commons工程 依赖 -->
        <dependency>
            <groupId>com.zwc</groupId>
            <artifactId>springcloud-config-eureka-commons</artifactId>
            <version>1.0</version>
        </dependency>
        <!-- config server 依赖 -->
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</artifactId>
        <!-- 提供者消费者 -->
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependencies>
    <!-- 插件依赖 -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

# 端口
server:
  port: 8000

spring:
  application:
    # 应用名称
    name: config-eureka-server
  cloud:
    config:
      server:
        git:
          # 仓库地址
          uri: https://github.com/intomylife/SpringCloud
          # 对应 {label} 部分，即 Git 的分支
          label: master
          # 仓库文件夹名称，多个以逗号分隔
          search-paths: springcloud-config-eureka/config-repo
          # git 仓库用户名（公开库可以不用填写）
          username:
          # git 仓库密码（公开库可以不用填写）
          passWord:
eureka:
  instance:
    # 使用 ip 代替实例名
    prefer-ip-address: true
    # 实例的主机名
    hostname: ${spring.cloud.client.ip-address}
    # 实例的 ID 规则
    instance-id: ${spring.cloud.client.ip-address}:${spring.application.name}:${server.port}
  client:
    serviceUrl:
      # 注册中心地址
      defaultZone: http://${eureka.instance.hostname}:8761/eureka/

package com.zwc;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
@SpringBootApplication
@EnableConfigServer
@EnableEurekaClient
public class SpringcloudConfigEurekaServerfirstServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringcloudConfigEurekaServerfirstServiceApplication.class, args);
    }
}

<?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>

    <!-- 继承父 -->
    <parent>
        <groupId>com.zwc</groupId>
        <artifactId>springcloud-config-eureka-service</artifactId>
        <version>1.0</version>
    </parent>
    <!-- 三坐标 -->
    <groupId>com.zwc</groupId>
    <artifactId>springcloud-config-eureka-client-service</artifactId>
    <version>1.0</version>
    <!-- 工程名称描述 -->
    <name>springcloud-config-eureka-client-service</name>
    <description>config client</description>
    <!-- 打包方式 -->
    <packaging>jar</packaging>
    <!-- 在 properties下声明相应的版本信息，然后在dependency下引用的时候用 ${} 就可以引入该版本jar包了 -->
    <properties>
    </properties>
    <!-- 加入依赖 -->
    <dependencies>
        <!-- commons工程 依赖 -->
        <dependency>
            <groupId>com.zwc</groupId>
            <artifactId>springcloud-config-eureka-commons</artifactId>
            <version>1.0</version>
        </dependency>
        <!-- config 依赖 -->
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</artifactId>
        <!-- 提供者消费者 -->
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependencies>
    <!-- 插件依赖 -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

# 端口
server:
  port: 8002

spring:
  application:
    # 应用名称
    name: config-eureka-client

spring:
  cloud:
    config:
      # 对应 {label} 部分，即 Git 的分支
      label: master
      # 对应 {application} 部分
      name: system
      # 对应 {profile} 部分
      profile: dev
      discovery:
        # 开启 Config 服务发现与注册
        enabled: true
        # 指定 server
        service-id: config-eureka-server
eureka:
  instance:
    # 使用 ip 代替实例名
    prefer-ip-address: true
    # 实例的主机名
    hostname: ${spring.cloud.client.ip-address}
    # 实例的 ID 规则
    instance-id: ${spring.cloud.client.ip-address}:${spring.application.name}:${server.port}
  client:
    serviceUrl:
      # 注册中心地址
      defaultZone: http://${eureka.instance.hostname}:8761/eureka/

package com.zwc.client.controller;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.WEB.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
    @Value("${hello}")
    private String hello;
    
    @RequestMapping("/hello")
    public String hello() {
        return this.hello;
    }
}

package com.zwc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
@SpringBootApplication
@EnableEurekaClient
public class SpringcloudConfigEurekaClientServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(SpringcloudConfigEurekaClientServiceApplication.class, args);
    }
}