一直使用springboot搭建后端项目,全部的配置都写到本身的resource目录下,随着微服务的项目愈来愈多,每一个项目都须要本身的各类配置文件。并且后期一旦想要修改配置文件,就得从新发布一遍很是的麻烦,如今就来教教你们怎么统一在github上管理 这些配置,并作到一处修改到处生效,不须要从新发布项目。
可使用STS来初始化项目,选择本身的以来就好。java
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.4.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.mike</groupId> <artifactId>config-server</artifactId> <version>0.0.1-SNAPSHOT</version> <name>config-server</name> <description>config server</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR1</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <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>
建立bootstrap.yml
文件,固然你可使用application.yml
或application.properties
git
spring: application: name: config-repo cloud: config: server: git: uri: https://github.com/mike/config-repo.git #github仓库地址 username: mike # 用户名 password: 123456 # 密码
在github上建立一个config-repo仓库,并添加配置文件:
两个不一样环境的配置hello-pj-dev.yml
github
hello: text: hello spring dev
hello-pj-uat.yml
web
hello: text: hello spring uat
建立启动类:spring
@SpringBootApplication @EnableConfigServer public class ConfigServerApplication { public static void main(String[] args) { SpringApplication.run(ConfigServerApplication.class, args); } }
启动应用,访问:
http://localhost:8080/hello-pj-dev.yml
http://localhost:8080/hello-pj-uat.yml
你就能够看到远程的配置中心。apache
pom
bootstrap
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.4.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.mike</groupId> <artifactId>hello-server</artifactId> <version>0.0.1-SNAPSHOT</version> <name>hello-server</name> <description>hello server</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR1</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</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-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>
建立bootstrap.yml
文件,只能是这个文件,不能是application文件后端
server: port: 8082 spring: application: name: hello-pj cloud: config: profile: dev uri: http://localhost:8080/
这里面配置了读取远程配置文件的uri,注意application.name必须对应github上的文件名,最终访问的是application.name+profilespringboot
建立测试controllerapp
@RestController public class TestController { @Value("${hello.text}") private String text; @GetMapping("/say") public String sayHello(){ return text; } }
访问 http://localhost:8082/say,你就能够看到对应的配置。这样你只须要在github上管理全部的配置就好了,可是记得'config-server'工程得一直启动,经过它咱们才能获取github上的配置。
目前若是咱们修改了github上的配置并不能立刻生效,须要咱们的客户端工程重启才行,如今须要改形成自动刷新。
在客户端工程中加入新的依赖:
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-bus-amqp</artifactId> </dependency>
修改bootstrap.yml
文件
server: port: 8082 spring: application: name: hello-pj cloud: config: profile: dev uri: http://localhost:8080/ bus: trace: enabled: true rabbitmq: host: localhost port: 5672 username: guest password: guest
注意
须要借助rabbitmq
,因此本地须要启动rabbitmq
。
在须要刷新的地方加入注解@RefreshScope
@RestController @RefreshScope public class TestController { @Value("${hello.text}") private String text; @GetMapping("/say") public String sayHello(){ return text; } }
这样咱们既能够随时修改github上的配置文件,而不须要重启应用。
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