实现多活架构(Active-Active Architecture)意味着在多个地理位置或多个数据中心同时运行应用系统,使其具备高可用性、灾难恢复和负载均衡能力。以下从理论到实践详细介绍如何使用 Spring Boot 构建多活系统。
gateway-service
:网关服务user-service
:业务服务config-service
:配置中心discovery-service
:服务发现组件@SpringBootApplication
@EnableConfigServer
public class ConfigServiceApplication {
public static void main(String[] args) {
SpringApplication.run(ConfigServiceApplication.class, args);
}
}
application.yml
:server:
port: 8888
spring:
cloud:
config:
server:
git:
uri: https://github.com/your-repo/config-repo
@SpringBootApplication
@EnableEurekaServer
public class DiscoveryServiceApplication {
public static void main(String[] args) {
SpringApplication.run(DiscoveryServiceApplication.class, args);
}
}
application.yml
:server:
port: 8761
eureka:
client:
register-with-eureka: false
fetch-registry: false
@SpringBootApplication
@EnableEurekaClient
public class GatewayServiceApplication {
public static void main(String[] args) {
SpringApplication.run(GatewayServiceApplication.class, args);
}
}
application.yml
:server:
port: 8080
spring:
cloud:
gateway:
routes:
- id: user-service
uri: lb://USER-SERVICE
predicates:
- Path=/users/**
eureka:
client:
service-url:
defaultZone: http://localhost:8761/eureka/
@SpringBootApplication
@EnableEurekaClient
public class UserServiceApplication {
public static void main(String[] args) {
SpringApplication.run(UserServiceApplication.class, args);
}
}
application.yml
:server:
port: 8081
spring:
datasource:
url: jdbc:mysql://localhost:3306/userdb
username: root
password: password
eureka:
client:
service-url:
defaultZone: http://localhost:8761/eureka/
@RestController
@RequestMapping("/users")
public class UserController {
@GetMapping("/{id}")
public User getUser(@PathVariable Long id) {
// 业务逻辑
return new User(id, "John Doe");
}
}
upstream user_service {
server user_service1:8081;
server user_service2:8081;
}
server {
listen 80;
location /users {
proxy_pass http://user_service;
}
}
http://localhost:8080/users/1
。通过配置中心、服务发现、网关服务、数据库复制和负载均衡,可以使用 Spring Boot 来实现多活架构。这种架构不仅提高了系统的可用性和容灾能力,还能改进系统的负载均衡和整体性能。实现多活架构(Active-Active Architecture)意味着在多个地理位置或多个数据中心同时运行应用系统,使其具备高可用性、灾难恢复和负载均衡能力。以下从理论到实践详细介绍如何使用 Spring Boot 构建多活系统。
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。
原创声明:本文系作者授权腾讯云开发者社区发表,未经许可,不得转载。
如有侵权,请联系 cloudcommunity@tencent.com 删除。