Spring Cloud 2025 使用体验

架构

• 注册中心 Spring Cloud Netflix Eureka/Spring Cloud Consul
• 配置中心 Spring Cloud Config/Spring Cloud Consul
• 网关 Spring Cloud Gateway
• 链路监控 zipkin

Spring Cloud Alibaba Nacos 暂未适配

体验一

1. Spring Cloud Netflix Eureka
2. Spring Cloud Config
3. Spring Cloud Gateway

Spring Cloud Netflix Eureka

相关依赖

<dependencies>
    <!--    服务信息监控-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <!--    Eureka 注册中心-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    </dependency>
</dependencies>

服务参数

application.yml

spring:
  application:
    # 注册的名称
    name: eureka-server
server:
  #  eureka服务默认端口建议不要修改
  port: 8761
eureka:
  instance:
    appname: ${spring.application.name} #默认 应用名称
  environment: test # 默认 test

启动配置

@EnableEurekaServer
@SpringBootApplication
public class EurekaServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication.class, args);
    }
}

启动即可 无需其他参数

Spring Cloud Config

相关依赖

<dependencies>
    <!--    配置中心-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-config-server</artifactId>
    </dependency>
    <!--    redis驱动：配置存储位置-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
    <!--    监控信息-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <!--    eureka 客户端-->
    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>
</dependencies>

服务参数

spring:
  application:
    name: configserver
  cloud:
    config:
      discovery:
        enabled: true
  data:
    redis:
      host: localhost
      port: 6379
  profiles:
    active: redis #激活redis环境 启用redis 存储数据
server:
  port: 8888 #默认配置中心端口

启动配置

@EnableConfigServer //开启配置中心
@EnableDiscoveryClient // 服务注册
@SpringBootApplication
public class ConfigServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConfigServerApplication.class, args);
    }
}

配置存储

git(default)

spring:
  cloud:
    config:
      server:
        git:
          uri: http or ssh #仓库地址 file:///d:/test 也支持
          default-label: master # 默认分支 main master
          #          host-key: ---
          #          host-key-algorithm: ssh-rsa
          #          private-key: ---
          username: ??
          password: ??

仓库创建文件app-dev.yml {应用名称}-{环境名称}.yml label 分支

filesystem(native)

spring:
  cloud:
    config:
      server:
        native:
          search-locations: file:D:/test # classpath:/ ...等格式
          add-label-locations: false #关闭label 文件夹
  profiles:
    active: native

文件夹下创建 ~/app-dev.yml {应用名称}-{激活环境}.yml ~/dev/app-dev.yml
{label}/{应用名称}-{激活环境}.yml

redis

<!--redis 驱动-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

spring:
  data:
    redis:
      hostname: localhost
      port: 6379
      password:  #
  profiles:
    active: redis

配置采用hash存储

HMSET sample-app server.port "8100" sample.topic.name "test" test.property1 "property1"
HMSET {app}-{profile}

jdbc

<!--jdbc-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
        <!--数据库驱动 MySQL 可以使用其他 PG ...-->
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
</dependency>

spring:
  cloud:
    config:
      server:
        jdbc:
          # sql SELECT "KEY", "VALUE" from PROPERTIES where APPLICATION=? and PROFILE=? and LABEL=?
          # 根据sql 创建表 注意列名
          sql: SELECT config_key, config_value from prop where APPLICATION=? and PROFILE=? and LABEL=?
          # SELECT "KEY", "VALUE" from PROPERTIES where APPLICATION=? and PROFILE is null and LABEL=?
          sql-without-profile: SELECT config_key, config_value from prop where APPLICATION=? and PROFILE is null and LABEL=?
  profiles:
    active: jdbc

label 默认 master 表结构存储 保存相应 key value profile application label 就好

vault,mongo等等...