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Part02 spring cloud consul 配置中心.md

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spring cloud consul 配置中心

相关文档

  • 官方文档地址：

    https://docs.spring.io/spring-cloud/docs/current/reference/html/

https://docs.spring.io/spring-cloud-consul/docs/current/reference/html/#spring-cloud-consul-config

  • 示例源码地址：

    /~https://github.com/zfhlm/mrh-example/tree/main/mrh-spring-cloud

consul 服务端

  • consul 三节点集群，使用 nginx 对外发布为一个地址：

    192.168.140.130:8500        consul agent 节点一

192.168.140.131:8500        consul agent 节点二

192.168.140.132:8500        consul agent 节点三

192.168.140.130:18500       nginx 负载均衡 consul 三节点集群

  • 控制台添加配置文件到 consul key/value，key 值：

    config/mrh-spring-cloud-service-consul:dev/data

  • 控制台添加配置文件到 consul key/value，value 值，选择 yaml 格式：

    logging:
  config: classpath:log4j2-spring.xml

server:
  port: 8899
  servlet:
    context-path: /

spring:
  application:
    name: mrh-spring-cloud-service-consul
  jackson:
    date-format: 'yyyy-MM-dd HH:mm:ss'
    joda-date-time-format: 'yyyy-MM-dd HH:mm:ss'
    time-zone: 'GMT+8'
    default-property-inclusion: NON_NULL
    serialization:
      WRITE_DATES_AS_TIMESTAMPS: false
    deserialization:
      FAIL_ON_UNKNOWN_PROPERTIES: false
      READ_DATE_TIMESTAMPS_AS_NANOSECONDS: false
    visibility:
      GETTER: NONE
      SETTER: NONE
      FIELD: ANY

consul 客户端

  • 添加服务 maven 依赖：

    <dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-consul-config</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>

  • 创建服务 bootstrap.yml 引导配置文件：

    spring:
  application:
    name: mrh-spring-cloud-service-consul
  profiles:
    active: dev
  cloud:
    consul:
      enabled: true
      host: 192.168.140.130
      port: 18500
      config:
        enabled: true
        format: yaml
        prefixes: config
        default-context: ${spring.application.name}
        profile-separator: ':'
        data-key: data
        acl-token: d5ab2ee4-ace6-f70f-fd34-2e25e009dfc4
        watch.enabled: false

  • 配置中心 consul key 与 服务配置 对应关系：

    spring cloud consul config key 命名规则：

    <prefixes>/<default-context><profile-separator><spring.profiles.active>/<data-key>

例如当前服务的 key 值：

    config/mrh-spring-cloud-service-consul:dev/data