SpringCloud的config使用
官网下载安装Git-2.17.1.2-64-bit.exe
注册GitHub账号
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
在文件夹中执行如下命令：git clone git@.......
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-totto-dev
---
spring:
profiles: test #测试环境
application:
name: microservicecloud-config-totto-test
# 请保存为utf-8格式执行如下命令到GitHub
git config --global user.email "[email protected]"
git config --global user.name "Your Name"
git add .
git commit -m "init file"
git push origin master
创建module microservicecloud-config-3344
pom.xml
org.springframework.cloud
spring-cloud-config-server
org.eclipse.jgit
org.eclipse.jgit
4.10.0.201712302008-r
org.springframework.boot
spring-boot-starter-actuator
org.springframework.cloud
spring-cloud-starter-hystrix
org.springframework.cloud
spring-cloud-starter-eureka
org.springframework.cloud
spring-cloud-starter-config
org.springframework.boot
spring-boot-starter-jetty
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
org.springframework
springloaded
org.springframework.boot
spring-boot-devtools
若报错，请将下面删掉
org.eclipse.jgit
org.eclipse.jgit
4.10.0.201712302008-r
application.yml
server:
port: 3344
spring:
application:
name: microservicecloud-config
cloud:
config:
server:
git:
uri: https://github.com/xxxx.git #GitHub上面的git仓库名字
username: xxx
password: xxx
force-pull: true
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
---
server:
port: 8202
spring:
profiles: test
application:
name: microservicecloud-config-client
执行如下命令上传到GitHub
git add .
git commit -m "test config"
git push origin master
新建module microservicecloud-config-client-3355
pom.xml
org.springframework.cloud
spring-cloud-starter-config
org.springframework.boot
spring-boot-starter-actuator
org.springframework.cloud
spring-cloud-starter-hystrix
org.springframework.cloud
spring-cloud-starter-eureka
org.springframework.cloud
spring-cloud-starter-config
org.springframework.boot
spring-boot-starter-jetty
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
org.springframework
springloaded
org.springframework.boot
spring-boot-devtools
修改系统的hosts文件
127.0.0.1 client-config.combootstrap.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-clientcontroller
@RestController
public class ConfigClientRest
{
@Value("${spring.application.name}")
private String applicationName;
@Value("${server.port}")
private String port;
@RequestMapping("/config")
public String getConfig()
{
String str = "applicationName: " + applicationName + "\t port: " + port;
System.out.println("******str: " + str);
return "applicationName: " + applicationName + "\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
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
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: eureka7001.com #eureka7001.com #eureka服务端的实例名称,单机版填localhost,集群版填eureka7001.com
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:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ #单机版设置，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）。
---
server:
port: 7002
spring:
profiles: test
application:
name: microservicecloud-config-eureka-client
eureka:
instance:
hostname: eureka7002.com #eureka7001.com #eureka服务端的实例名称,单机版填localhost,集群版填eureka7001.com
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:
defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ #单机版设置，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）。
新建microservicecloud-config-dept-client.yml
spring:
profiles:
active: dev
---
server:
port: 8001
mybatis:
config-location: classpath:mybatis/mybatis.cfg.xml # mybatis配置文件所在路径
type-aliases-package: top.totto.springcloud.entities # 所有Entity别名类所在包
mapper-locations:
- classpath:mybatis/mapper/**/*.xml # mapper映射文件
spring:
profiles: dev
application:
name: microservicecloud-dept
datasource:
type: com.alibaba.druid.pool.DruidDataSource # 当前数据源操作类型
driver-class-name: com.mysql.cj.jdbc.Driver # mysql驱动包
url: jdbc:mysql://localhost:3306/cloudDB01?serverTimezone=GMT%2B8 # 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
eureka:
client: #客户端注册进eureka服务列表内
service-url:
defaultZone: http://eureka7001.com:7001/eureka #单机版设置
# defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/ #集群版设置
instance:
instance-id: microservicecloud-dept8001
prefer-ip-address: true #访问路径可以显示IP地址
info:
app.name: totto-microservicecloud-config1
company.name: www.totto.top
build.artifactId: $project.artifactId$
build.version: $project.version$
---
server:
port: 8001
mybatis:
config-location: classpath:mybatis/mybatis.cfg.xml # mybatis配置文件所在路径
type-aliases-package: top.totto.springcloud.entities # 所有Entity别名类所在包
mapper-locations:
- classpath:mybatis/mapper/**/*.xml # mapper映射文件
spring:
profiles: test
application:
name: microservicecloud-dept
datasource:
type: com.alibaba.druid.pool.DruidDataSource # 当前数据源操作类型
driver-class-name: com.mysql.cj.jdbc.Driver # mysql驱动包
url: jdbc:mysql://localhost:3306/cloudDB02?serverTimezone=GMT%2B8 # 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
eureka:
client: #客户端注册进eureka服务列表内
service-url:
defaultZone: http://eureka7002.com:7002/eureka #单机版设置
# defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/ #集群版设置
instance:
instance-id: microservicecloud-dept8001
prefer-ip-address: true #访问路径可以显示IP地址
info:
app.name: totto-microservicecloud-config2
company.name: www.totto.top
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
新建module microservicecloud-config-eureka-client-7001
pom.xml
org.springframework.cloud
spring-cloud-starter-config
org.springframework.cloud
spring-cloud-starter-eureka-server
org.springframework
springloaded
org.springframework.boot
spring-boot-devtools
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
org.springframework.cloud
spring-cloud-starter-config
org.springframework.boot
spring-boot-starter-actuator
org.springframework.cloud
spring-cloud-starter-eureka
com.atguigu.springcloud
microservicecloud-api
${project.version}
junit
junit
mysql
mysql-connector-java
com.alibaba
druid
ch.qos.logback
logback-core
org.mybatis.spring.boot
mybatis-spring-boot-starter
org.springframework.boot
spring-boot-starter-jetty
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
org.springframework
springloaded
org.springframework.boot
spring-boot-devtools
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
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
可发现数据库切换了