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Detailed explanation of Spring Cloud framework architecture

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2024-06-03 19:01:02574browse

The Spring Cloud framework adopts a layered architecture, and the modules include: infrastructure (providing distributed system infrastructure), service management (managing microservice life cycle), application development (simplifying microservice development) and tools (for monitoring , testing and deploying distributed systems). Practical cases include building microservice applications (using @SpringBootApplication), service discovery (using @EnableDiscoveryClient), and configuration management (using Spring Cloud Config Server). The advantage of the Spring Cloud framework is to quickly develop distributed systems, provide out-of-the-box modules, follow the Spring Boot development experience, and provide rich tools and support.

Spring Cloud框架体系架构详解

Detailed explanation of Spring Cloud framework architecture

Introduction

Spring Cloud is a framework built on Spring Boot for rapid development and distribution formula system. It provides a set of preconfigured modules that simplify the development of Spring Boot applications, making it easy to build microservices, distributed systems, RESTful web services, and more.

Architecture

Spring Cloud adopts a layered architecture to divide functions into different modules. Each module is responsible for concerns in a specific field:

  • Infrastructure: Responsible for providing the infrastructure of distributed systems, such as service discovery, configuration management, load balancing, etc.
  • Service Management (Service Management): Manage the life cycle of microservices, including registration, discovery, configuration, circuit breaker, etc.
  • Application Development: Provide tools and support to simplify the development of microservices, such as RESTful Web and messaging.
  • Tools: Provides various tools for monitoring, testing and deploying distributed systems, such as Actuator and Spring Cloud CLI.

Practical case

Building a microservice application

@SpringBootApplication
public class DemoApplication {

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

Service discovery (Eureka)

@EnableDiscoveryClient
class Service {

    @Autowired
    private DiscoveryClient discoveryClient;

    @GetMapping("/services")
    public List<String> services() {
        return discoveryClient.getServices();
    }
}

Configuration Management (Config Server)

# application.yml
spring:
  cloud:
    config:
      server:
        git:
          uri: https://github.com/example/config-repo.git

Advantages

Using the Spring Cloud framework has the following advantages:

  • Rapid development distribution Style system
  • Provides out-of-the-box modules to reduce duplication of work
  • Follows the Spring Boot development experience, lightweight and easy to use
  • Provides a wide range of tools and support , Simplifying system management

By combining Spring Cloud with Spring Boot, developers can quickly build scalable, reliable, and easy-to-maintain distributed systems.

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