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Spring Cloud 统一配置

发表于 更新于 阅读次数： Valine：

概述

Spring Cloud Config是一个为分布式系统提供统一配置支持的项目。
在Spring Cloud Config还未出来前，我们可以用zookeeper来做统一配置管理中心

Spring Cloud Config Server

怎么创建一个配置中心呢？

目录结构

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.
├── config-server.iml
├── pom.xml
└── src
    ├── main
    │   ├── java
    │   │   └── com
    │   │       └── tookbra
    │   │           └── ConfigApplication.java
    │   └── resources
    │       └── application.yml
    └── test
        └── java

pom.xml

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

application.java

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@EnableConfigServer
@SpringBootApplication
public class Application {

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

application.yml（git配置方式）

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server:
  port: 8000

spring:
  cloud:
    config:
      server:
        git:
          uri: https://git.oschina.net/tookbra/dht-config.git
  application:
    name: config-server

application.yml（svn配置方式）

Spring Cloud Config也支持svn方式
使用svn来做配置，需要引入svnkit.jar

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<dependency>
    <groupId>org.tmatesoft.svnkit</groupId>
    <artifactId>svnkit</artifactId>
</dependency>
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server:
  port: 8000

spring:
  cloud:
    config:
      server:
        svn:
          uri: http://svn
      profile: subversion
  application:
    name: config-server

其它配置

Spring Cloud Config还提供了native和vault的配置中心

启动Config Server

运行spring-boot的maven插件
curl http://localhost:8000/test-dev.yml

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test: true

gateway.yml是我在码云上传的文件

Spring Cloud Config Client

目录结构

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.
├── config-client.iml
├── pom.xml
└── src
    ├── main
    │   ├── java
    │   │   └── com
    │   │       └── dht
    │   │           └── Application.java
    │   └── resources
    │       └── bootstrap.yml
    └── test
        └── java

pom.xml

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<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

application.java

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@RestController
@SpringBootApplication
public class Application {

    @Value("${test}")
    private String zone;

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

    @RequestMapping("/")
    public String home() {
        return zone;
    }
}

bootstrap.yml

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server:
  port: 8001

spring:
  cloud:
    config:
      uri: http://localhost:8000
      name: test

  application:
    name: test
logging:
  level: debug

启动Config Server

运行spring-boot的maven插件
curl http://localhost:8001

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true