Sharing frontline internet R&D technology, dedicated to premium original content.
This article walks through the background, architecture, and practical implementation of a Spring Cloud Zuul service gateway, showing how to create the gateway project, enable Zuul, configure Eureka registration, build a sample business microservice, and test request routing and load balancing.
This article explains how to integrate Spring Cloud Bus with RabbitMQ (or Kafka) to automatically propagate configuration changes across multiple microservice instances, replacing manual /refresh calls with a message‑bus driven refresh workflow, and provides step‑by‑step implementation details.
This article walks through why repetitive CRUD code wastes development time, reviews existing generators like MyBatis‑Generator and MyBatis‑Plus, and then demonstrates step‑by‑step how to create a custom Java code generator using Freemarker, Maven, and SpringBoot, complete with template and demo code.
This article explains why a centralized configuration center is needed for many microservices, introduces Spring Cloud Config, and provides a step‑by‑step tutorial that creates a Git‑backed config server, a client application, and demonstrates dynamic refresh using Spring Boot Actuator.
This article walks through the background of Hystrix, shows how to add Hystrix Dashboard and Turbine dependencies to a Spring Cloud consumer project, configure the necessary annotations and properties, test the services, and use the dashboard and Turbine streams to visualize circuit‑breaker metrics for both single instances and clusters.
This article explains the role of Hystrix as a circuit‑breaker in Spring Cloud microservices, describes why service failures can cascade, and provides a detailed, hands‑on implementation—including Maven dependencies, annotations, fallback methods, configuration of circuit thresholds, and integration with Ribbon and Feign – complete with code snippets and test steps.
This article explains why force‑killing a Spring Boot process is unsafe and walks through four practical ways—using Actuator, ApplicationContext.close(), PID‑based kill commands, and SpringApplication.exit()—to achieve a graceful shutdown while preserving in‑flight tasks and releasing resources.
This article walks through the background of Spring Cloud's Feign client, explains its core concepts, shows step‑by‑step project setup with Eureka services, demonstrates remote calls and file upload extensions using Feign‑Form, and concludes with a functional microservice example.
This article walks through the background of Spring Cloud Ribbon, explains its client‑side load‑balancing role, provides step‑by‑step code to create multiple provider services and a consumer that uses Ribbon, and shows how to configure different balancing algorithms and retry mechanisms.
This article explains the core concepts of Spring Cloud Eureka, demonstrates how to create a Eureka server, a provider, and a consumer with full code examples, and shows how to configure a two‑node and multi‑node Eureka cluster for high availability in micro‑service environments.
