spring-cloud-config使用

实现功能 可通过git仓库或本地文件进行配置 支持手动更新配置
本文代码 https://github.com/tothis/spring-cloud-learn/tree/master/config

---

查看客户端配置

http://localhost:8082/config-client/dev
http://localhost:8082/config-client-dev.json
http://localhost:8082/config-client-dev.yaml
http://localhost:8082/config-client-dev.yml
http://localhost:8082/config-client-dev.properties

刷新配置

curl -X POST http://localhost:8082/actuator/bus-refresh

properties yml 相同的键显示properties的值

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配置中心服务端

1. pom.xml

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-config-serverartifactId>
dependency>

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-starter-bus-amqpartifactId>
dependency>

2. application.yml

server:
  port: 8002
spring:
  application:
    name: config-server
  profiles:
    # 使用本地文件时需写入native
    active: native
  rabbitmq:
    host: 192.168.92.134
    port: 5672
    username: guest
    password: guest
  cloud:
    # https://docs.spring.io/spring-cloud-config/docs/2.2.4.RELEASE/reference/html
    config:
      label: master
      server:
        # git:
        #   uri: https://github.com/tothis/spring-cloud-learn
        #   search-paths: config/profile
        native:
          # search-locations: classpath:profile
          search-locations: file:D:/IDEAProjects/project/spring-cloud-learn/config/profile
eureka:
  client:
    service-url:
      defaultZone: http://192.168.92.134:8001/eureka
management:
  endpoints:
    web:
      # 默认前缀为'/actuator'
      # base-path: /
      exposure:
        # include: bus-refresh
        include: '*'

3. ConfigServerApplication.java

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;

@EnableConfigServer
@SpringBootApplication
public class ConfigServerApplication {

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

配置中心客户端

1. pom.xml

<dependency>
    <groupId>org.springframework.bootgroupId>
    <artifactId>spring-boot-starter-webartifactId>
dependency>

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-starter-configartifactId>
dependency>

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-starter-netflix-eureka-clientartifactId>
dependency>

<dependency>
    <groupId>org.springframework.cloudgroupId>
    <artifactId>spring-cloud-starter-bus-amqpartifactId>
dependency>

2. bootstrap.yml

# bootstrap配置优先于application配置文件 配置不会被覆盖
spring:
  cloud:
    config:
      label: master
      profile: dev
      # 配置中心服务地址 使用eureka后此配置失效
      # uri: http://localhost:8002
      discovery:
        enabled: true
        serviceId: config-server
eureka:
  client:
    service-url:
      defaultZone: http://192.168.92.134:8001/eureka

3. application.yml

server:
  port: 9001
spring:
  application:
    name: config-client
  rabbitmq:
    host: 192.168.92.134
    port: 5672
    username: guest
    password: guest

4. ConfigClientApplication.java

package com.example;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
/**
 * 当前controller支持热刷新配置中心配置
 */
@RefreshScope
@SpringBootApplication
public class ConfigClientApplication {

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

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

    /**
     * a.properties a.yml 相同的键显示properties的值
     */
    @GetMapping
    public String test() {
        return test;
    }
}