Microservice architecture service orchestration technology of Java framework

In Java microservice architecture, service orchestration technologies include: Eureka: service registration and discovery center. Ribbon: load balancing library. Hystrix: circuit breaker library. Zuul: API gateway. In practice, these frameworks can be used to create service orchestration to manage and coordinate interactions between microservices, thereby improving the robustness and scalability of the architecture.

Microservice architecture service orchestration technology in Java framework

In microservice architecture, service orchestration involves managing and coordinating interactions between different microservices . The Java ecosystem provides several powerful and popular frameworks for service orchestration.

Eureka: Service Registration and Discovery

Eureka is a service registry that allows microservices to register themselves and find other services. It uses a client/server model, where the Eureka server stores information about service instances and the Eureka client periodically registers itself with the server.

// Spring Boot 项目中 Eureka 服务器配置
spring.cloud.eureka.server.enable-self-preservation=false

// Spring Boot 项目中 Eureka 客户端配置
spring.cloud.eureka.client.serviceUrl.defaultZone=${EUREKA_SERVER:http://localhost:8761/eureka}

Ribbon: Load Balancing

Ribbon is a load balancing library that allows clients to access backend microservices in a consistent manner. It provides various load balancing algorithms, including round robin, weighted round robin, and random selection.

// 在 Ribbon 客户端配置中指定负载均衡策略
ribbon.eureka.enabled=true
ribbon.eureka.client.serviceId=my-service
ribbon.LoadBalancedRetryPolicyClassName=com.netflix.loadbalancer.AvailabilityFilteringRibbonLoadBalancingPolicy

Hystrix: Circuit Breakers

Hystrix is ​​a circuit breaker library that protects against cascading failures. It isolates service calls by following a set of rules within a certain period of time, thereby limiting the impact on the service.

// Spring Boot 项目中 Hystrix 配置
feign.hystrix.enabled=true

Zuul: API Gateway

Zuul is an API gateway that sits at the front end of a microservices architecture. It simplifies client access to microservices by providing a single entry point and provides features such as routing, authentication, and security.

// Spring Boot 项目中 Zuul 配置
spring.cloud.netflix.zuul.routes.my-route.path=/api/**
spring.cloud.netflix.zuul.routes.my-route.serviceId=my-service

Practical Case

Consider an example microservice architecture consisting of two microservices: an order microservice and a product microservice. Using the framework introduced above, we can create the following service orchestration:

• Eureka acts as a service registry for registering and discovering these two services.
• Ribbon acts as a load balancer and is used to route requests to the order microservice instance in a polling manner.
• Hystrix acts as a fuse to prevent cascading failures.
• Zuul acts as an API gateway to provide a single entry point to access both microservices.

By using these frameworks, we create a robust and scalable service orchestration that effectively manages communication between microservices, simplifying development and maintenance.

The above is the detailed content of Microservice architecture service orchestration technology of Java framework. For more information, please follow other related articles on the PHP Chinese website!