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SpringCloud的config使用

程序员文章站 2024-03-20 22:10:28
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官网下载安装Git-2.17.1.2-64-bit.exe

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GitHub设置公钥，参考https://www.cnblogs.com/qcwblog/p/5709720.html

https://www.cnblogs.com/joyho/articles/4062574.html

https://jingyan.baidu.com/album/3aed632ed01dd17010809127.html?picindex=7


在D盘建立一个文件夹D:\44\mySpringCloud

在D:\44\mySpringCloud\microservicecloud-config下新建一个application.yml文件，必须为utf-8格式

spring: 
  profiles:
    active:
    - dev
---
spring: 
  profiles: dev  #开发环境
  application:
    name: microservicecloud-config-atguigu-dev
---
spring: 
  profiles: test  #测试环境
  application:
    name: microservicecloud-config-atguigu-test        
# 请保存为utf-8格式

执行如下命令到GitHub

git add .

git commit -m "init file"

git push origin master

SpringCloud的config使用


创建module     microservicecloud-config-3344

pom.xml

<dependencies>
		<!-- springCloud Config -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-config-server</artifactId>
		</dependency>
		<!-- 避免Config的Git插件报错：org/eclipse/jgit/api/TransportConfigCallback -->
		<dependency>
			<groupId>org.eclipse.jgit</groupId>
			<artifactId>org.eclipse.jgit</artifactId>
			<version>4.10.0.201712302008-r</version>
		</dependency>
		<!-- 图形化监控 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<!-- 熔断 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-hystrix</artifactId>
		</dependency>
		<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>
		<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>
		<!-- 热部署插件 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>springloaded</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>

若报错，请将下面删掉

<!-- 避免Config的Git插件报错：org/eclipse/jgit/api/TransportConfigCallback -->
		<dependency>
			<groupId>org.eclipse.jgit</groupId>
			<artifactId>org.eclipse.jgit</artifactId>
			<version>4.10.0.201712302008-r</version>
		</dependency>

application.yml

server: 
  port: 3344 
  
spring:
  application:
    name:  microservicecloud-config
  cloud:
    config:
      server:
        git:
          uri: [email protected]:名称/microservicecloud-config.git #GitHub上面的git仓库名字

启动类

@SpringBootApplication
@EnableConfigServer
public class Config_3344_StartSpringCloudApp
{
	public static void main(String[] args)
	{
		SpringApplication.run(Config_3344_StartSpringCloudApp.class, args);
	}
}

修改系统C:\Windows\System32\drivers\etc  下的hosts文件

127.0.0.1  config-3344.com

浏览器访问http://config-3344.com:3344/application-test.yml

http://config-3344.com:3344/application-dev.yml


二、

在D:\44\mySpringCloud\microservicecloud-config目录下新建microservicecloud-config-client.yml

spring: 
  profiles:
    active:
    - dev
---
server: 
  port: 8201
spring: 
  profiles: dev
  application:
    name: microservicecloud-config-client
eureka: 
  client:
    service-url:
      defaultZone: http://eureka-dev.com:7001/eureka/
---
server: 
  port: 8202
spring: 
  profiles: test
  application:
    name: microservicecloud-config-client
eureka: 
  client:
    service-url:
      defaultZone: http://eureka-test.com:7001/eureka/

执行如下命令上传到GitHub

git add .

git commit -m "test config"

git push origin master

SpringCloud的config使用

新建module  microservicecloud-config-client-3355

pom.xml

<dependencies>
		<!-- SpringCloud Config客户端 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-config</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-hystrix</artifactId>
		</dependency>
		<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>
		<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>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>springloaded</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>

修改系统的hosts文件

127.0.0.1  client-config.com

bootstrap.yml（系统级别）

spring:
  cloud:
    config:
      name: microservicecloud-config-client #需要从github上读取的资源名称，注意没有yml后缀名
      profile: test   #本次访问的配置项
      label: master   
      uri: http://config-3344.com:3344  #本微服务启动后先去找3344号服务，通过SpringCloudConfig获取GitHub的服务地址

application.yml（用户级别）

spring:
  application:
    name: microservicecloud-config-client

controller

@RestController
public class ConfigClientRest
{

	@Value("${spring.application.name}")
	private String applicationName;

	@Value("${eureka.client.service-url.defaultZone}")
	private String eurekaServers;

	@Value("${server.port}")
	private String port;

	@RequestMapping("/config")
	public String getConfig()
	{
		String str = "applicationName: " + applicationName + "\t eurekaServers:" + eurekaServers + "\t port: " + port;
		System.out.println("******str: " + str);
		return "applicationName: " + applicationName + "\t eurekaServers:" + eurekaServers + "\t port: " + port;
	}
}

启动类

@SpringBootApplication
public class ConfigClient_3355_StartSpringCloudApp
{
	public static void main(String[] args)
	{
		SpringApplication.run(ConfigClient_3355_StartSpringCloudApp.class, args);
	}
}

浏览器访问http://client-config.com:8202/config

SpringCloud的config使用


修改bootstrap.yml

spring:
  cloud:
    config:
      name: microservicecloud-config-client #需要从github上读取的资源名称，注意没有yml后缀名
      profile: dev   #本次访问的配置项
      label: master   
      uri: http://config-3344.com:3344  #本微服务启动后先去找3344号服务，通过SpringCloudConfig获取GitHub的服务地址

浏览器访问http://client-config.com:8201/config

SpringCloud的config使用


总结：microservicecloud-config-client-3355通过microservicecloud-config-3344访问到GitHub上的microservicecloud-config-client.yml，从而把yml中的配置加载给microservicecloud-config-client-3355

三：

在D:\44\mySpringCloud\microservicecloud-config下新建一个microservicecloud-config-eureka-client.yml文件

spring: 
  profiles:
    active:
    - dev
---
server: 
  port: 7001
  
spring: 
  profiles: dev
  application:
    name: microservicecloud-config-eureka-client   

eureka: 
  instance:
#    hostname: localhost
    hostname: eureka7001.com #eureka服务端的实例名称
  client: 
    register-with-eureka: false     #false表示不向注册中心注册自己。
    fetch-registry: false     #false表示自己端就是注册中心，我的职责就是维护服务实例，并不需要去检索服务
    service-url: 
      #单机 defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/       #设置与Eureka Server交互的地址查询服务和注册服务都需要依赖这个地址（单机）。
      defaultZone: http://eureka7001.com:7001/eureka/
---
server: 
  port: 7001
  
spring: 
  profiles: test
  application:
    name: microservicecloud-config-eureka-client   

eureka: 
  instance:
#    hostname: localhost
    hostname: eureka7001.com #eureka服务端的实例名称
  client: 
    register-with-eureka: false     #false表示不向注册中心注册自己。
    fetch-registry: false     #false表示自己端就是注册中心，我的职责就是维护服务实例，并不需要去检索服务
    service-url: 
      #单机 defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/       #设置与Eureka Server交互的地址查询服务和注册服务都需要依赖这个地址（单机）。
      defaultZone: http://eureka7001.com:7001/eureka/

新建microservicecloud-config-dept-client.yml

spring: 
  profiles:
    active:
    - dev
---
server:
  port: 8001
  
spring:
   profiles: dev
   application:
    name: microservicecloud-config-dept-client 
   datasource:
    type: com.alibaba.druid.pool.DruidDataSource            # 当前数据源操作类型
    driver-class-name: org.gjt.mm.mysql.Driver              # mysql驱动包
    url: jdbc:mysql://localhost:3306/cloudDB01              # 数据库名称
    username: root
    password: root
    dbcp2:
      min-idle: 5                                           # 数据库连接池的最小维持连接数
      initial-size: 5                                       # 初始化连接数
      max-total: 5                                          # 最大连接数
      max-wait-millis: 200                                  # 等待连接获取的最大超时时间
      
mybatis:
  config-location: classpath:mybatis/mybatis.cfg.xml        # mybatis配置文件所在路径
  type-aliases-package: com.atguigu.springcloud.entities    # 所有Entity别名类所在包
  mapper-locations:
  - classpath:mybatis/mapper/**/*.xml                       # mapper映射文件
  
eureka:
  client: #客户端注册进eureka服务列表内
    service-url: 
       #defaultZone: http://localhost:7001/eureka
       defaultZone: http://eureka7001.com:7001/eureka/
  instance:
    instance-id: dept-8001.com
    prefer-ip-address: true     #访问路径可以显示IP地址 
    
    
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            # 当前数据源操作类型
    driver-class-name: org.gjt.mm.mysql.Driver              # mysql驱动包
    url: jdbc:mysql://localhost:3306/cloudDB02              # 数据库名称
    username: root
    password: root
    dbcp2:
      min-idle: 5                                           # 数据库连接池的最小维持连接数
      initial-size: 5                                       # 初始化连接数
      max-total: 5                                          # 最大连接数
      max-wait-millis: 200                                  # 等待连接获取的最大超时时间
      
mybatis:
  config-location: classpath:mybatis/mybatis.cfg.xml        # mybatis配置文件所在路径
  type-aliases-package: com.atguigu.springcloud.entities    # 所有Entity别名类所在包
  mapper-locations:
  - classpath:mybatis/mapper/**/*.xml                       # mapper映射文件
  
eureka:
  client: #客户端注册进eureka服务列表内
    service-url: 
       #defaultZone: http://localhost:7001/eureka
       defaultZone: http://eureka7001.com:7001/eureka/
  instance:
    instance-id: dept-8001.com
    prefer-ip-address: true     #访问路径可以显示IP地址 
    
    
info: 
  app.name: atguigu-microservicecloud-springcloudconfig01
  company.name: www.atguigu.com
  build.artifactId: $project.artifactId$
  build.version: $project.version$

执行如下命令，提交到GitHub

git status

git add .

git commit -m "two new file"

git push origin master

SpringCloud的config使用

新建module   microservicecloud-config-eureka-client-7001

pom.xml

<dependencies>
		<!-- SpringCloudConfig配置 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-config</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka-server</artifactId>
		</dependency>
		<!-- 热部署插件 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>springloaded</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>

bootstrap.yml

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

application.yml

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

启动类

@SpringBootApplication
@EnableEurekaServer
public class Config_Git_EurekaServerApplication
{
	public static void main(String[] args)
	{
		SpringApplication.run(Config_Git_EurekaServerApplication.class, args);
	}
}

新建module   microservicecloud-config-dept-client-8001

pom.xml

<dependencies>
		<!-- SpringCloudConfig配置 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-config</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
		</dependency>
		<dependency>
			<groupId>com.atguigu.springcloud</groupId>
			<artifactId>microservicecloud-api</artifactId>
			<version>${project.version}</version>
		</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>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>springloaded</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>

bootstrap.yml

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

application.yml

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

启动类

@SpringBootApplication
@EnableEurekaClient //本服务启动后会自动注册进eureka服务中
@EnableDiscoveryClient //服务发现
public class DeptProvider8001_Config_App
{
	public static void main(String[] args)
	{
		SpringApplication.run(DeptProvider8001_Config_App.class, args);
	}
}

开启microservicecloud-config-3344     microservicecloud-config-eureka-client-7001

microservicecloud-config-dept-client-8001

浏览器访问http://localhost:8001/dept/list

SpringCloud的config使用

修改microservicecloud-config-dept-client-8001中的bootstrap.yml

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

浏览器再次访问http://localhost:8001/dept/list

SpringCloud的config使用

可发现数据库切换了

相关标签： config

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