Freaks City

Technical Architecture Overview The system utilizes a decoupled architecture comprising a Spring Boot backend, a Vue.js-based administrative frontend, and a UniApp-based WeChat Mini Program client. This separation ensures maintainability and scalability across different platforms. Backend Framework: Spring Boot Spring Boot serves as the core b ...

The @Component annotation serves as a generic marker for any class requiring Spring container management. Applied to POJOs, service layers, or persistence entities, it triggers automatic instantiation and registration in the IoC container. Conversely, @Bean declares a managed object within configuration classes. Placed on methods, it registers ...

Testing Default Request Handling Capacity A standard Spring Boot project created with minimal configuration will be analyzed to determine its concurrent request handling capabilities. The test setup uses Spring Boot 2.7.13 with only essential dependencies included. The test controller accepts requests and holds the thread for an extended period ...

Overview This article describes a clean approach to implementing distributed locking and rate limiting using Redis in Spring Boot applications. The solution leverages Redis atomic operations for thread-safe state management across multiple service instances. Why Redis? Redis provides atomic operations that guarantee complete execution or no exe ...

This solution covers both Spring Boot 2.x and 3.x implementations. Problem Description A common requirement arises where each API interface carries an interfacePath defined in a custom annotation on the interface itself. For instance: @FeignClient(value = "x-module") public interface XXXService extends XApi { } @XXXMapping("/mem ...

Distributed Caching Architectures Handling Data Discrepancies Cache Penetration: Occurs when queries request data existing neither in the cache nor the database. Mitigation strategies include: Storing null values for missing keys with short expiration times to prevent redundant DB hits. Implementing a Bloom Filter to probabilistically verify d ...

In affiliate rebate platforms—where high-volume transactions, real-time commission tracking, and user activity logs are common—database efficiency directly impacts system scalability and responsiveness. Optimizing both schema design and data access patterns is essential to maintain performance under load. Schema Design Best Practices A well-str ...

Setting Up Eureka Service Registry Creating Eureka Server For multiple Spring Boot projects, use a Maven multi-module structure. Create a main Maven project with Spring Boot and Spring Cloud dependencies in the parent POM: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0& ...

Server-Sent Events (SSE) is a mechanism that enables servers to push real-time updates to clients over HTTP. Compraed to WebSocket, SSE is simpler and suitable for many real-time communication scenarios. This article explores how to implement real-time messaging using Spring Boot and SSE. What Are Server-Sent Events SSE allows a server to send ...

When implementing a custom interceptor in a Spring Boot application to validate specific parameters, an exception Required request body is missing may occur. This issue typically arises after adding an interceptor that reads the request body, causing subsequent attempts to read the body (such as via @RequestBody) to fail. The root cause is that ...