SpringCloud个人笔记-03-Config初体验

```
sb-cloud-config 配置中心
```

<?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.huarui</groupId>
    <artifactId>sb_cloud_config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sb_cloud_config</name>
    <packaging>jar</packaging>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.13.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>Edgware.SR3</spring-cloud.version>
    </properties>

    <dependencies>

        <!-- 消息总线支持 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-amqp</artifactId>
        </dependency>

        <!-- eureka client -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>

        <!-- config依赖 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</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>

pom.xml

server:
  port: 9002

spring:
  application:
    name: sb-cloud-config
  cloud:
      config:
        server:
          git:
            uri: https://github.com/youxiu326/sb_cloud_config_repo
            username: youxiu326
            password: 123456
            basedir: D:sortwareIDEApackagesb_springcloud_packageasedir
            #searchPaths: spring-cloud/helloworldConfig
  #RebbitMq
  rabbitmq:
    host: 39.108.85.204
    port: 5672
    username: guest
    password: guest

eureka:
  client:
    serviceUrl:
      defaultZone: http://39.108.85.204:8761/eureka/
  instance:
    #注册时使用ip而不是主机名
    prefer-ip-address: true
    #指定此实例的ip
    ip-address: 39.108.85.204

# 博客: https://www.cnblogs.com/moonandstar08/p/7571610.html

# 关闭安全验证
management:
  security:
     enabled: false

application.yml

注: 避免通过服务名无法发现服务

eureka:
  client:
    serviceUrl:
      defaultZone: http://39.108.85.204:8761/eureka/
  instance:
    #注册时使用ip而不是主机名
    prefer-ip-address: true
    #指定此实例的ip
    ip-address: 39.108.85.204


多网卡环境下Eureka服务注册IP 不正确，部署服务时手动指定ip，避免该服务无法被发现

@SpringBootApplication
@EnableEurekaClient //@EnableEurekaClient将它注册到服务中心
@EnableConfigServer //@EnableConfigServer注解说明了一个Config Server
public class SbCloudConfigApplication {

	//http://localhost:9002/application-dev.yml

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

}

```
sb_cloud_config_client
```

<?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.huarui</groupId>
    <artifactId>sb_cloud_config_client</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>sb_cloud_config_client</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.13.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>Edgware.SR3</spring-cloud.version>
    </properties>

    <dependencies>

        <!-- 消息总线支持 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-bus-amqp</artifactId>
        </dependency>


        <!-- eureka client -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>

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

pom.xml

spring:
  application:
    name: sb_cloud_config_client
  cloud:
    config:
      discovery:
        enabled: true
        service-id: SB-CLOUD-CONFIG
      profile: dev
      #uri: http://localhost:9002/
#  #RebbitMq
  rabbitmq:
    host: 39.108.85.204
    port: 5672
    username: guest
    password: guest

#management:
#  security:
#    enabled: false #刷新时，关闭安全验证

eureka:
  client:
    serviceUrl:
      defaultZone: http://39.108.85.204:8761/eureka/
  instance:
    #注册时使用ip而不是主机名
    prefer-ip-address: true
    #指定此实例的ip
    #ip-address: ip
server:
  port: 9003

bootstrap.yml

bootstrap.yml 先于 application.yml 读取

@SpringBootApplication
@EnableEurekaClient
public class SbCloudConfigClientApplication {

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


	// post http://localhost:9003//bus/refresh

}

@RestController
@RefreshScope
public class HelloController {

    @Value("${lihui}")
    private String lihui;

    @GetMapping("/hello")
    public String hello(){
        return lihui;
    }
}

github:结构

依次启动　　eureka server,　　config,　　config-client
访问config-client　　http://localhost:9003/hello

可以发现config-client中的配置文件信息于config服务中获得

修改github上的配置文件，刷新页面，并无改变

post 方式访问 http://39.108.85.204:9002/bus/refresh

　　　　刷新页面，值已改变

每次修改github配置文件后，每次自己访问也是非常不方便的，可在github中配置webHook 每次提交手动发送一个请求

这样每次提交文件时，就会向rabbitMQ队列中发消息，所有收到消息的就会更新带有 @RefreshScope 注解的类

相关阅读:
李宏毅机器学习课程---1、机器学习介绍
 尚学python课程---15、python进阶语法
 尚学python课程---14、python中级语法
 尚学python课程---13、python基础语法
 Android4.2.2由于越来越多的物理按键（frameworks）
ym——Android之ListView性能优化
 我学cocos2d-x (两) 采用Delegate（信托）
mac提升yosemite后php 扩展修复
 JAVA学习课第五 — IO流程（九）文件分割器合成器
 第11周项目-2.2
原文地址：https://www.cnblogs.com/youxiu326/p/config.html