This guide walks through replacing DashScope with a local Ollama model in a Spring AI project, showing how to configure multiple MCP servers, adjust Maven and YAML settings, run zero‑code changes, and troubleshoot common issues.
An incident where a forged free‑card callback corrupted order status reveals the need for daily cross‑system reconciliation, and the article outlines a 20‑part series that details the architecture, design decisions, multi‑channel handling, risk control, and implementation of a production‑grade payment system serving over a hundred million users.
After building the order, stock, and point services along with Nacos, Seata, Sentinel, Prometheus, Grafana, and SkyWalking, this guide shows how to package all components into Docker images and use a single Docker Compose command to start the entire microservice system with one click, while addressing common pitfalls.
This article walks through building a real‑time bidirectional communication system with Spring Boot 3.5.0 and the Netty‑SocketIO library, covering its core features, Maven setup, server implementation via CommandLineRunner, client HTML/JavaScript code, room support, and testing screenshots.
Faced with massive MyBatis log files that made manual slow‑SQL hunting impossible, the author designed a SpringBoot‑Vue‑MySQL system that parses logs with multithreaded batch processing, flexible regex templates, real‑time performance monitoring, and virtual‑scroll UI, achieving 55 000 lines/s throughput and over 95% matching accuracy.
This article presents ten highly valuable Spring Boot features—including global exception handling, MVC interceptors, programmatic bean access, @Import usage, startup runners, BeanDefinition modification, bean lifecycle callbacks, and custom scopes—each illustrated with concrete code examples and explanations for building cleaner, more maintainable Java backend applications.
The article compares Alibaba’s Druid and Spring Boot’s default HikariCP connection pools, explaining how connection pooling works, presenting benchmark results that show HikariCP’s lower latency and higher TPS, detailing HikariCP’s lock‑free ConcurrentBag and bytecode optimizations, and highlighting Druid’s rich monitoring, SQL firewall and leak detection features to help developers choose the right pool for different scenarios.
This article explains the N+1 query problem in a Spring Boot GraphQL service, demonstrates how DataLoader batches and caches requests to reduce database round‑trips, and provides step‑by‑step integration code, including dependency setup, schema definition, entity mapping, batch loader registration, and best‑practice recommendations.
This article showcases ten built‑in Spring Boot utilities—including version retrieval, system property access, temporary and home directory handling, method introspection, generic type resolution, process ID extraction, property binding, and package path registration—each illustrated with concise code examples that dramatically reduce the need for custom helper classes.
This article explains why RabbitMQ failures can cascade through a micro‑service system, details the underlying HA mechanisms such as quorum queues, presents a layered production architecture with concrete Spring Boot code, outlines a step‑by‑step troubleshooting workflow, and shares best‑practice checklists for scaling, Kubernetes deployment, and migration from classic mirrored queues.
This article demonstrates how to use Jackson’s @JsonMixin and @JsonFilter annotations together with a custom ObjectMapper and PropertyFilter in Spring Boot 3.5.0 to control API response fields dynamically via request parameters, avoiding multiple DTOs or heavyweight GraphQL setups.
Spring Sentinel is a high‑performance Maven plugin for Spring Boot that performs static code analysis to spot N+1 queries, unsafe transaction calls, architectural anti‑patterns, and security risks, offering configurable rule profiles, CI/CD‑ready reports, and flexible suppression mechanisms.
This article presents a production‑grade architecture for automatically closing unpaid orders, detailing why simple scheduled tasks are insufficient, outlining high‑risk scenarios, defining five core objectives, comparing implementation options, and providing a complete RabbitMQ TTL + DLX solution with state‑machine idempotency, high‑concurrency handling, observability, and Kubernetes deployment guidance.
This article demonstrates a non‑intrusive, high‑precision method to track each Spring Boot bean's creation time by customizing ApplicationContextFactory, Environment, and BeanFactory, allowing package‑level exclusion and clear console reporting to pinpoint slow‑loading beans during startup.
This article presents eight ready‑to‑use Spring Boot 3.5.0 code snippets—including MapStruct converters, embeddable collections, i18n helpers, secure random generators, custom runtime exceptions, type‑safe configuration properties, JPA auditing, and custom validation annotations—each illustrated with concrete examples and runnable code.
This article presents fourteen practical Java collection techniques—ranging from creating immutable and empty collections to using computeIfAbsent, Map.merge, Collectors.groupingBy, and EnumMap/EnumSet—each illustrated with concise code snippets and explanations that improve readability, safety, and performance in Spring Boot applications.
The article walks senior developers through seven core Spring Boot 3.5.0 concepts—resilience with Resilience4j, observability via Actuator, distributed transactions using Saga, advanced caching, asynchronous processing, API‑gateway routing, and OAuth2/JWT security—providing concrete code snippets, configuration examples, and visual illustrations for each technique.
This article presents four concrete guidelines for writing a CLAUDE.md file that improves Claude Code's behavior, explains the underlying problems with LLMs, details each rule with examples, shows how to install the rules as a plugin or raw file, and provides validation criteria to ensure the guidelines work in practice.
The article introduces OKHttpUtil, a lightweight wrapper around Square’s OkHttp library that enables Java developers to perform HTTP GET, POST, file upload, and download operations with a single line of code, includes Maven setup, Spring Boot integration, fluent API usage, and examples of wrapping external services such as eBay.
The article explains how traditional AOP‑based permission checks in Spring MVC cause performance overhead and proposes a custom annotation‑driven solution that integrates with HandlerMapping to perform fine‑grained, configurable access control efficiently.
The article explains the causes of duplicate requests in distributed systems, defines idempotency, and presents eight concrete implementation strategies—including token mechanisms, unique database indexes, optimistic and pessimistic locks, distributed locks, state machines, request serial numbers, and MQ‑based handling—each with code samples, advantages, drawbacks, and usage guidelines.
After integrating Claude Code into a Spring Boot micro‑service project, the author discovered that most of the previous overtime was spent on repetitive boilerplate—controllers, DTOs, services, tests, and documentation—and that Claude Code can generate, refactor, and test these artifacts in minutes, freeing developers to focus on architecture and business logic.
This tutorial walks through setting up Nacos for service registration and discovery in a Spring Cloud microservice project, covering environment preparation, configuring user-service and order-service, verifying registration, demonstrating load balancing, and troubleshooting common issues.
This article introduces MyBatisPlus Pro, walks through adding the MyBatisPlus dependency, creating a utility class, defining a generic BaseController with full CRUD, pagination support, and shows how to extend it in specific controllers, providing a ready‑to‑use RESTful API template.
This extensive guide redesigns Spring Boot data‑access for high‑traffic e‑commerce, explaining why traditional JPA‑Redis‑Elasticsearch thinking fails, then detailing a multimodal architecture that assigns strong‑consistency, hot‑read, document, and search responsibilities to MySQL, Redis, MongoDB and Elasticsearch, with production‑grade code, CDC pipelines, distributed‑transaction patterns, caching strategies, observability, and cloud‑native deployment.
The article explains how integrating Spring HATEOAS transforms a Level‑2 REST API into a hypermedia‑driven Level‑3 API, automatically exposing actionable links, reducing front‑end state‑handling, enabling type‑safe URL generation, and simplifying RBAC integration, thereby eliminating the need for constant Swagger revisions.
This article introduces Spring AI’s AskUserQuestionTool, a portable Java utility that lets AI agents ask clarification questions before answering, eliminating prompt‑driven misalignments, and demonstrates its configuration, workflow, and a complete runnable example on Spring Boot 3.5.0.
The article explains why simple try‑catch is insufficient for production stability and introduces three advanced fault‑tolerance patterns—retry with exponential back‑off, circuit breaker using Resilience4j, and idempotency design—each illustrated with concrete Spring Boot 3.5.0 code examples and best‑practice guidelines.
This article explains why naïve database‑per‑tenant designs cause resource waste and operational headaches, and demonstrates how Spring Boot, Hibernate, and PostgreSQL schemas provide a lightweight, high‑performance multi‑tenant architecture with strong isolation, low overhead, and easy scalability.
The author recounts three years of applying Domain‑Driven Design to a microservice ecosystem, sharing concrete pitfalls, code‑first modeling from database tables, and a structured 24‑article series that guides developers to refactor existing Spring Boot + MyBatis Plus projects without rewriting the framework.
This article details a logistics‑focused prepaid deduction platform built with a Spring Boot backend and Vue 3 frontend, covering precise cent‑to‑yuan handling, role‑based view isolation, VO‑based pagination, automatic deduction workflow, and an Apple‑style responsive UI using Tailwind CSS.
The article explains three typical deadlock scenarios in Spring Boot 3.5—circular‑wait, connection‑pool starvation, and implicit DML deadlocks—shows minimal 10‑line code reproductions, demonstrates the resulting errors, and provides concrete fixes such as ordered locking, removing REQUIRES_NEW propagation, and using asynchronous events.
The article explains that @RequestBody in Spring Boot is not just a JSON deserializer but a unified HTTP request‑body entry point that can process JSON, XML, plain text, binary streams, byte arrays, form data, files and custom media types through Spring MVC's HttpMessageConverter system.
A Java team rebuilt the popular Node.js AI‑Agent platform OpenClaw from scratch, replacing AI‑generated “vibe code” with a carefully refactored architecture that leverages Spring AI, JobRunr, and Spring Modulith, and demonstrates how to run the new Java version with just a few commands.
This article explains how Spring MVC’s @RequestBody annotation is a universal entry point for HTTP request bodies, supporting JSON, XML, plain text, binary streams, maps, lists, and custom media types through its HttpMessageConverter mechanism, with concrete code examples and configuration details.
This article explains how to integrate the Java‑DataLoader library into a Spring Boot 3.5.0 application, covering dependency setup, entity and repository definitions, service methods, DataLoader configuration, testing, contextual loading, and custom two‑level caching to achieve high‑performance batch data fetching.
This article walks through the reasons for abandoning Nacos in favor of Apollo and provides a step‑by‑step tutorial that covers Apollo’s core concepts, architecture, client integration with Spring Boot, dynamic updates, environment/cluster/namespace handling, and deployment on Kubernetes.
The final installment of the Spring Boot source‑code series consolidates the previous six episodes—covering startup flow, auto‑configuration, IoC container, bean lifecycle, circular dependencies, and SPI—while providing a complete knowledge map, 20 interview‑question templates, practical study tips, and a roadmap for further learning and contribution.
Tracking 200 senior Spring Boot positions in the US over 12 weeks, the author discovered that half disappeared as companies shift from pure CRUD roles to AI‑assisted system engineering, revealing a rapid transformation in backend engineer demand and required skill sets.
This article presents nine practical Java code‑optimization techniques—including string formatting, loop refactoring, resource management, buffered I/O, multithreading, enums, exception handling, and third‑party libraries—each illustrated with before‑and‑after code samples and clear explanations of why the improved version is more readable, efficient, and maintainable.
The article presents a production‑grade, scalable flash‑sale architecture that combines Redis atomic inventory deduction, Kafka asynchronous peak‑shaving, and careful database finalization, detailing each layer’s goals, pre‑filtering techniques, Lua scripting, idempotency, capacity planning, monitoring, and compensation strategies to prevent overselling and ensure reliability.
In high‑concurrency microservices, Spring Boot's default async thread pool loses the MDC‑based traceId, making log correlation impossible; this article shows how to capture the traceId in a filter, propagate it with a custom ThreadPoolTaskExecutor and MDC task decorator, and extend the solution to Feign, RestTemplate, and RestClient while demonstrating a price‑aggregation use case.
Spring Boot 4.0.6 has been officially released, bringing 65 bug fixes and patches for eight CVE security issues—including a critical Actuator endpoint exposure—across 4.0.x, 3.5.x, 3.4.x, 3.3.x, and 2.7.x versions, so users should upgrade promptly.
Spring Boot 4.0 introduces a milestone upgrade that requires JDK 21, switches to jakarta.* packages, offers first‑class virtual‑thread support, a built‑in declarative HTTP client, native retry annotations, API versioning, and modular auto‑configuration, all aimed at higher cloud‑native performance.
This article walks through Spring Boot's bean creation pipeline—from the initial getBean call through doGetBean, the three‑level singleton cache, and the detailed steps of createBean, populateBean, and initializeBean—explaining how circular dependencies are safely resolved and where AOP proxies are generated.
This article breaks down Spring Boot's core refresh() method into twelve detailed steps, explaining how the IoC container prepares, configures, and starts up—including bean factory preparation, post‑processor registration, singleton instantiation, and final event publishing—providing interview‑ready insights and code illustrations.
This article explains why the Model Context Protocol (MCP) is becoming the universal AI interface standard, compares three implementation approaches, and provides a step‑by‑step tutorial for Java developers to create a production‑ready MCP server with Spring Boot, including tool definition, registration, controller, LLM integration, and best‑practice optimizations.
The article explains why traditional polling becomes unsustainable under high load, contrasts polling with webhook‑based event delivery, and provides a complete Spring Boot implementation—including outbox pattern, Kafka integration, retry logic, security, observability, and operational best practices—to build a production‑grade, scalable webhook platform.
Spring Boot 4.1 makes virtual threads the default, dramatically increasing I/O concurrency, yet the unchanged HikariCP maximumPoolSize can exhaust connections; the article explains this incompatibility, shows how to adjust pool settings, enable lazy connections, and outlines a step‑by‑step migration path from 3.x to 4.1.
This article walks through using RSA to encrypt Spring Boot API responses, covering the theory behind RSA, two security scenarios, Maven dependency setup, configuration, controller annotations, encryption/decryption code, a front‑end JavaScript example, common pitfalls, and a final security summary.
This article explores the complete execution flow of Spring Boot’s auto‑configuration, detailing the role of @EnableAutoConfiguration, the AutoConfigurationImportSelector hierarchy, how candidate configurations are loaded from spring.factories, filtered by conditions, and how to create custom starters, with interview‑style Q&A.
This article walks through building a Spring Boot 3.5.0 service that uses Apache POI and XDocReport to load a DOCX file, extract images, convert it to HTML, and expose a controller endpoint for instant online preview without external plugins.
This article walks through Spring Boot 3.5.0’s URI building tools—including UriComponents, UriBuilderFactory, encoding options, ServletUriComponentsBuilder, and MVC link generation—showing how to construct correct, automatically‑encoded URLs for RestTemplate, WebClient, and controller methods with concrete code examples and outputs.
The article introduces the liteflow rule‑engine framework, explains its architecture, component types, EL rule files, data‑context handling, configuration options, and demonstrates a real‑world e‑commerce workflow that replaces verbose if‑else code with concise rule definitions.
This article presents a detailed design of a Process Business Capability (PBC) architecture that decouples logistics workflow steps, replaces hard‑coded controller logic with configurable nodes, introduces a unified entry point, a flow engine for matching and execution, and demonstrates the complete Spring Boot implementation with code examples and database schemas.
This article dissects the @SpringBootApplication annotation, explaining how it combines @SpringBootConfiguration, @EnableAutoConfiguration, and @ComponentScan, and walks through the auto‑configuration mechanism, conditional annotations, and common interview questions with concrete code examples.
This guide demonstrates how to use a custom @SensitiveFilter annotation together with an AOP aspect and the lightweight sensitive‑word library to implement global sensitive‑word filtering in Spring Boot 3, supporting both automatic replacement and detection modes while eliminating repetitive code across controllers.
This article dissects a comprehensive set of Barclays Java Spring Boot microservices interview questions, covering HashMap internals, REST method semantics, code implementations, Spring dependency injection, JDBC evolution, JPA/Hibernate usage, SQL injection defenses, microservice architecture essentials, and best‑practice REST API design.
In just 20 minutes, the author uses Cursor AI with Opus 4.7 to create a complete pet‑adoption solution that includes a WeChat mini‑program front‑end, a Vue‑based admin portal, and a Spring Boot backend with JWT security, demonstrating rapid AI‑assisted development and detailed architecture.
This article dissects the Spring Boot startup sequence step by step, showing how a minimal @SpringBootApplication triggers listeners, type deduction, auto‑configuration loading, environment preparation, IOC container creation, bean refresh, and embedded Tomcat launch, with interview‑ready explanations.
The author demonstrates how Cursor AI and Opus 4.7 can generate a complete campus dormitory management solution—including a Spring Boot backend, Vue 3 admin portal, and a WeChat mini‑program front‑end—within twenty minutes, and provides the source code, video tutorial, and deployment details.
The article explains how standard Spring Boot controller‑level validation leaves service methods unchecked, and demonstrates using @Validated with MethodValidationPostProcessor, custom exception handling, and a MethodValidationExcludeFilter to apply, convert, and selectively disable validation across the application.
A tiny UI tweak that required a meeting with four backend groups exposed the pain of calling many micro‑services from the front‑end, and the article shows how introducing a Backend‑For‑Frontend (BFF) layer can aggregate, transform, and simplify those calls while improving reliability and performance.
The article analyzes how OpenAI's Codex CLI, an AI coding agent, is shifting Java development from manual code writing to task‑oriented automation, outlining suitable use cases, practical prompting techniques, and the new skills engineers must adopt to keep quality and control.
This article explains why storing passwords and API keys in plain‑text configuration files is risky, outlines the three core principles of configuration security, and provides a step‑by‑step guide to using the @SecretValue annotation from the spring‑secret‑starter library to inject secrets safely from services such as AWS Secrets Manager.
The article examines five high‑frequency Spring Boot anti‑patterns—field injection, returning entities from controllers, overusing @Transactional, generic exception handling, and embedding business logic in controllers—showing problematic code snippets, real‑world consequences, and concise refactored examples to improve testability, performance, and maintainability.
An ORM parameter type mismatch caused MySQL to perform implicit conversion on a VARCHAR index column, turning an indexed query into a full table scan that saturated connection pools, thread pools, Kafka consumers, and upstream services during a high‑traffic promotion, illustrating the full‑stack impact and remediation steps.
This guide shows how to integrate asyncTool into a Spring Boot project, configure custom thread pools, define core interfaces, and compose serial, parallel, or mixed task flows with full‑link callbacks, fault tolerance, and performance optimizations for complex multi‑threaded orchestration.
This article walks through building a Netty‑based WebSocket server integrated with Spring Boot, configuring the channel pipeline, implementing custom handlers, exposing a push‑message service, and testing the end‑to‑end flow that enables the backend to push real‑time messages to web clients.
This article introduces Neo4j as a graph database, walks through its Windows installation, and provides a complete Spring Boot integration tutorial—including Maven dependencies, YAML configuration, entity and repository definitions, REST controller implementation, and end‑to‑end testing of user and follow‑relationship APIs.
This article outlines a step‑by‑step Java learning roadmap—from core fundamentals to microservices, high‑concurrency, AI integration, and cloud‑native deployment—showing how targeted skill progression can dramatically boost both technical competence and earning potential.
A tiny front‑end tweak that required five microservice calls turned the front‑end into a glue layer, prompting a meeting with four backend teams, and the author explains how adopting a Backend‑for‑Frontend (BFF) pattern resolves such integration pain points with concrete examples and code.
Starting from a simple sequential Java price‑aggregator, the article walks through successive architectural upgrades—concurrent calls with CompletableFuture, timeout and fallback handling, Spring Boot service exposure, caching, bulkhead isolation, microservice split, and Kafka‑driven event processing—showing how latency drops from 1500 ms to under 20 ms.
This article explains three Spring Boot 3.5.0 techniques—ResponseBodyEmitter, SseEmitter, and StreamingResponseBody—for delivering multiple asynchronous values as a stream, complete with code samples, curl demonstrations, and a front‑end EventSource example.
The article demonstrates how to construct a Spring Boot application that orchestrates multiple AI services using LangChain4j and Ollama, defining intent‑classification and tool‑based assistants, registering them as beans, and routing user requests through a controller to achieve multi‑step intent recognition and task dispatch in a simulated intelligent customer‑service workflow.
MateClaw is an open‑source, Java‑centric AI operating system built on Spring Boot 3.5 and Spring AI Alibaba that runs as a single JAR, offering multi‑agent collaboration, a structured wiki‑style knowledge base, tool‑guarded utilities, multi‑model routing, and cross‑channel deployment while keeping all data on‑premises.
This article demonstrates how to add a single @Monitor annotation to Spring Boot 3.5.0 services and automatically obtain call‑trace and execution‑time metrics by leveraging Spring AOP, SimpleTraceInterceptor, PerformanceMonitorInterceptor, custom advisors, and a BeanPostProcessor, with full code examples and a test controller.
This guide shows how to integrate LangChain4j with Alibaba Baichuan's DashScope model in a Spring Boot application, enabling per‑user AI chat memory identified by @MemoryId, isolating conversations, and persisting the sliding‑window message history to Redis with TTL handling.
This guide walks through installing Ollama on Windows, downloading a Qwen2.5‑7B model, configuring Spring Boot with LangChain4j dependencies, setting up application.yml, defining AI service interfaces, adding conversation memory, creating REST and streaming controllers, and testing the end‑to‑end local LLM workflow.
This guide walks through setting up a local LLM with Ollama, configuring Spring Boot and LangChain4j, defining function‑calling tools for weather, order status, logistics and coupons, creating AI service beans, exposing REST controllers, and troubleshooting common integration issues.
This guide walks through exposing metrics, integrating Prometheus and Grafana, using async‑profiler flame graphs, tuning Tomcat/Undertow, optimizing JVM flags, applying SkyWalking tracing, and applying layer‑wise code, cache, and thread‑pool improvements so a SpringBoot service can reliably serve millions of concurrent requests.
This tutorial explains why RocketMQ is chosen for high‑throughput messaging, outlines its core components and typical scenarios, guides environment setup via Docker or local installation, shows Maven integration, provides Spring Boot configuration, and presents complete producer and consumer code with testing steps, extensions for sync/async messages, and common troubleshooting tips.
The article dissects how the default JpaRepository findById method can trigger unnecessary SELECT queries, create foreign‑key violations under concurrency, and degrade performance, then demonstrates three concrete workarounds—including getReferenceById, manual entity construction, and pessimistic read locking—to eliminate these issues.
This guide walks through using the SpringAIAlibaba framework to integrate Alibaba Baichuan with Spring Boot via LangChain4j, explains core concepts, compares LangChain4j to Spring AI and OpenAI, and provides step‑by‑step dependency setup, environment configuration, code examples, and a simple browser test.
This guide walks through a complete Spring Boot and Tomcat performance tuning workflow for high‑traffic services, covering thread‑model fundamentals, capacity planning, 17 practical engineering tricks, 12 essential Tomcat parameters, and strategies for graceful deployment, observability, and fault isolation.
This article explains why traditional function‑calling is insufficient for production AI services and shows how Spring AI's Model Context Protocol (MCP) introduces bidirectional communication, addressable resources, parameterized prompts, tool orchestration, and server‑initiated sampling, providing a complete roadmap to build a production‑grade AI microservice architecture.
This article walks through building a complete OAuth2.0 solution in Spring Boot, covering core concepts, a comparison of the four grant types, project initialization, detailed configuration of the authorization and resource servers, custom login pages, end‑to‑end testing, advanced optimizations, and security best‑practice recommendations.
This article demonstrates seven practical ways to access configuration properties in a Spring Boot 3.5.0 application, covering ContextRefreshedEvent listeners, ConfigurableEnvironment, the Environment interface, @Value, @ConfigurationProperties, ConfigurableBeanFactory, and the Actuator /env endpoint, each with code examples and usage notes.
This article explains why a gateway is needed in a Spring Cloud microservice architecture, compares Spring Cloud Gateway with Zuul, introduces its core concepts of routes, predicates, and filters, and provides step‑by‑step code examples for dependency setup, configuration, custom authentication and logging filters, rate limiting, circuit breaking, troubleshooting tips, and a complete gateway configuration for a blog system.
This guide details how to design and implement a production‑grade, high‑concurrency medical AI assistant using LangChain4j, Spring Boot, Redis, and Kubernetes, covering architecture, RAG‑enhanced retrieval, controlled tool invocation, guardrails, idempotent transactions, scaling strategies and observability to ensure reliable, compliant patient interactions.
This guide shows how to configure a Spring Boot 3 project with JDK 17, add the spring‑ai‑alibaba‑starter, obtain an Alibaba Cloud Baileian API key, and implement a simple AI chat controller for quick conversational testing.
This guide shows how to set up a Spring Boot 3.x project with JDK 17, add the spring‑ai‑alibaba‑starter, configure an Alibaba Cloud Bailei API key, and implement a simple chat controller to call the model via Spring AI.
This article compares Spring AI 2.0 and LangChain4j, examining their positioning, version alignment, architecture, programming model, RAG support, observability, learning curve, and ecosystem integration to help Java teams decide which library best fits their AI project constraints.
This article demonstrates how to create a millisecond‑level real‑time online user tracking system using Spring Boot 3.5, WebSocket with STOMP, and Redis pub/sub, covering environment setup, Maven dependencies, server‑side configuration, presence services, event listeners, and a simple front‑end page.
This article explains why Java threads cannot be force‑killed, how Thread.interrupt works, and provides a step‑by‑step framework—including cooperative cancellation, two‑phase termination, thread‑pool shutdown, Kafka consumer handling, Spring Boot lifecycle integration, and Kubernetes termination orchestration—to achieve safe, observable shutdown of production‑grade Java services.
This article analyzes the challenges of automatically cancelling unpaid orders after 30 minutes in high‑traffic e‑commerce systems and compares three production‑grade approaches—simple scheduled polling, RabbitMQ delayed queues, and a time‑bucket plus MQ strategy—detailing their architectures, code, trade‑offs, and best‑practice recommendations.
This article shows how to use Hutool's OshiUtil wrapper of OSHI in a Spring Boot 3 application to retrieve CPU, memory, OS, JVM, disk and network information with just a few lines of code, covering dependency setup, code examples, usage scenarios and common pitfalls.
This tutorial shows how to integrate Apache Commons Configuration2 with Spring Boot 3 to load, refresh, persist, and listen to configuration changes in real time, using periodic reload triggers, auto‑save, and event listeners so updates take effect without restarting the service.
The article evaluates 13 Java web frameworks—Spring Boot, Quarkus, Micronaut, Vert.x, Helidon, Javalin, Dropwizard, Play Framework, Grails, Apache Wicket, Struts 2, JSF, and native Servlet+JSP—using six objective dimensions (performance, ecosystem maturity, learning curve, development efficiency, enterprise adoption, and innovation) and presents concrete usage statistics, benchmark numbers, and tiered rankings to guide technology selection.
Learn how to replace tangled if‑else login code with a clean, extensible architecture using Spring Boot, combining the Factory pattern to instantiate strategy beans and the Strategy pattern to encapsulate each login method (password, WeChat, SMS, etc.), enabling easy addition of new authentication types.
