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Spring Boot

4357 articles · Page 1 of 44
Ray's Galactic Tech
Ray's Galactic Tech
Aug 16, 2026 · Backend Development

Ditch Seata: Build a Production‑Ready SAGA Orchestrator with a 500‑Line Java State Machine

This article shows how to replace heavyweight distributed‑transaction frameworks such as Seata with a lightweight, production‑grade SAGA orchestrator built from a Java state machine, MySQL persistence and Spring Boot, covering architecture, state‑machine design, database schema, core orchestration logic, recovery, exception handling and practical deployment tips.

IdempotencySAGASpring Boot
0 likes · 46 min read
Ditch Seata: Build a Production‑Ready SAGA Orchestrator with a 500‑Line Java State Machine
Cloud Architecture
Cloud Architecture
Aug 16, 2026 · Backend Development

How to Build a 100k QPS Seckill System with Spring Boot, Redis, and Lua

This article provides a production‑grade, step‑by‑step engineering guide for designing a high‑concurrency seckill (flash‑sale) system that can sustain 100,000 QPS using Spring Boot, Redis with Lua scripts, asynchronous messaging, and comprehensive fault‑tolerance, monitoring, and scalability techniques.

LuaRedisSeckill
0 likes · 40 min read
How to Build a 100k QPS Seckill System with Spring Boot, Redis, and Lua
liandk
liandk
Aug 14, 2026 · Databases

Hands‑On MySQL Slow Query: Enable Logs, Analyze SQL, and Optimize Performance

The article explains what MySQL slow queries are, why they must be detected, when to enable slow‑query logging, step‑by‑step commands to configure the log, how to simulate and analyze problematic SQL with EXPLAIN, and practical optimization techniques—including index creation and Spring Boot integration—to eliminate performance bottlenecks.

IndexingMySQLSQL
0 likes · 10 min read
Hands‑On MySQL Slow Query: Enable Logs, Analyze SQL, and Optimize Performance
Java Tech Workshop
Java Tech Workshop
Aug 14, 2026 · Backend Development

Is Your Configuration Actually Bound? A Full‑Stack Breakdown of Spring Boot @ConfigurationProperties

The article explains the complete binding process of Spring Boot’s @ConfigurationProperties, covering configuration loading, property source merging, Binder execution, validation, registration, registration methods, naming conventions, complex type handling, metadata generation, and dynamic refresh, while providing practical code examples and troubleshooting tips.

Spring Bootbinderconfiguration-properties
0 likes · 17 min read
Is Your Configuration Actually Bound? A Full‑Stack Breakdown of Spring Boot @ConfigurationProperties
Cloud Architecture
Cloud Architecture
Aug 11, 2026 · Databases

Redis Sentinel Deep Dive: Leader Election, Failover Mechanics, and Production Best Practices

This article dissects Redis Sentinel’s high‑availability workflow—from failure detection, SDOWN/ODOWN states, and quorum logic to leader election, replica promotion, and configuration propagation—while illustrating each step with a real‑world e‑commerce cache case, detailed configuration snippets, Kubernetes deployment patterns, Spring Boot integration, and operational playbooks for observability and fault‑injection testing.

FailoverHigh AvailabilityKubernetes
0 likes · 48 min read
Redis Sentinel Deep Dive: Leader Election, Failover Mechanics, and Production Best Practices
Architecture Digest
Architecture Digest
Aug 11, 2026 · Backend Development

Run Your First Embabel Java Agent in 30 Minutes: A Hands‑On Guide

This article walks you through setting up the environment, creating a Spring Boot project, defining strong‑typed domain models, implementing @Action methods, declaring goals, and running an interactive shell so you can build and execute a fully functional Embabel Java Agent that automatically generates a research brief.

AIEmbabelJava Agent
0 likes · 9 min read
Run Your First Embabel Java Agent in 30 Minutes: A Hands‑On Guide
Java Tech Enthusiast
Java Tech Enthusiast
Aug 9, 2026 · Backend Development

Spring Boot + Disruptor: Achieving Ultra‑Fast High‑Concurrency Processing for 6 Million Orders per Second

This article explains how to replace traditional message queues with LMAX Disruptor in a Spring Boot application, covering its core concepts, step‑by‑step implementation, and a demo that demonstrates lock‑free, high‑throughput processing capable of handling six million orders per second.

DisruptorMessage QueueRing Buffer
0 likes · 10 min read
Spring Boot + Disruptor: Achieving Ultra‑Fast High‑Concurrency Processing for 6 Million Orders per Second
Architecture Digest
Architecture Digest
Aug 9, 2026 · Backend Development

Setting Up Trae IDE for Spring AI: A Quick‑Start Guide

This article walks Java developers through installing Trae IDE, configuring the required JDK, Maven and Spring AI dependencies, creating a Spring Boot project, adding AI model settings, implementing a chat controller with synchronous and streaming endpoints, and troubleshooting common issues.

AIAPI KeyBuilder mode
0 likes · 12 min read
Setting Up Trae IDE for Spring AI: A Quick‑Start Guide
java1234
java1234
Aug 9, 2026 · Backend Development

Why Spring Boot 3 Completely Drops JDK 8

Spring Boot 3 raises its minimum Java version to 17 because Spring Framework 6 moves to Jakarta EE 9+, ending support for the javax.* namespace, and Oracle stopped free updates for JDK 8, making migration essential for security, ecosystem compatibility, and to leverage new language features and Spring‑Boot‑specific improvements.

JDK 17Jakarta EEJava Records
0 likes · 10 min read
Why Spring Boot 3 Completely Drops JDK 8
Java Tech Workshop
Java Tech Workshop
Aug 9, 2026 · Backend Development

How Does Spring Boot Load Its Logging System?

This article explains Spring Boot's logging architecture, the early initialization process driven by LoggingApplicationListener, the three‑layer design with SLF4J, bridge packages and Logback, configuration file loading order, differences between logback.xml and logback‑spring.xml, and common troubleshooting steps.

ConfigurationSpring Bootjava
0 likes · 16 min read
How Does Spring Boot Load Its Logging System?
IT Services Circle
IT Services Circle
Aug 7, 2026 · Information Security

Why Is Sa-Token Gaining So Much Traction?

Sa-Token has become a popular Java permission framework because it offers a lightweight, plug‑in‑driven architecture that automates authentication, authorization and session management, allowing developers to replace complex solutions like Spring Security with just a few lines of code while still supporting distributed deployments and advanced features.

Sa-TokenSpring Bootauthentication
0 likes · 16 min read
Why Is Sa-Token Gaining So Much Traction?
MaGe Linux Operations
MaGe Linux Operations
Aug 6, 2026 · Databases

How to Determine the Right Database Connection Pool Size: Practical Guidelines and Benchmarks

This article walks through a systematic approach to sizing PostgreSQL connection pools for Java applications using HikariCP and Spring Boot, covering capacity budgeting, workload‑driven calculations, monitoring metrics, slow‑SQL analysis, leak detection, Kubernetes deployment considerations, and safe rollout practices.

Connection PoolHikariCPKubernetes
0 likes · 27 min read
How to Determine the Right Database Connection Pool Size: Practical Guidelines and Benchmarks
Java Architect Handbook
Java Architect Handbook
Aug 6, 2026 · Backend Development

Why Using kill -9 to Stop a Java Service Can Cost You Your Job

The article explains how the forceful kill -9 command can corrupt data and break transactions in Java services, demonstrates the risks with MyISAM and distributed systems, and provides step‑by‑step guides for graceful shutdown using kill -15, ConfigurableApplicationContext.close, Spring Boot Actuator, and @PreDestroy hooks.

ActuatorLinux killPreDestroy
0 likes · 17 min read
Why Using kill -9 to Stop a Java Service Can Cost You Your Job
SpringMeng
SpringMeng
Aug 6, 2026 · Artificial Intelligence

A Powerful Three‑Tier Travel App Powered by AI, LangChain4j, and Collaborative Filtering

This article introduces a three‑endpoint travel system (mini‑program, web front‑end, and back‑end) that integrates Java Spring Boot, Vue 3, LangChain4j, DeepSeek, Ollama embeddings, and Mahout‑based collaborative filtering to provide AI‑driven recommendations and a RAG‑enhanced chat assistant.

AICollaborative FilteringLangChain4j
0 likes · 7 min read
A Powerful Three‑Tier Travel App Powered by AI, LangChain4j, and Collaborative Filtering
java1234
java1234
Aug 6, 2026 · Backend Development

Why Flowable Is Gaining Popularity Among Java Developers

Flowable is an open‑source Java workflow engine that follows the BPMN 2.0 standard, offering tighter Spring Boot integration, full CMMN/DMN support, better performance than Activiti, and flexible deployment options, with detailed comparisons to Activiti and Camunda and step‑by‑step Spring Boot and standalone examples.

ActivitiBPMNCamunda
0 likes · 8 min read
Why Flowable Is Gaining Popularity Among Java Developers
Coder Trainee
Coder Trainee
Aug 5, 2026 · Operations

How an Overnight Billing System Saved a Logistics Firm from Losing 3000 Yuan Daily

A logistics company struggled with mismatched label fees, manual reconciliation errors, and monthly profit loss, so the team deployed an automated recharge, label import, one‑click deduction, and reconciliation system that eliminated leakage, cut reconciliation time, and provided real‑time balance visibility.

MySQLOperationsSpring Boot
0 likes · 5 min read
How an Overnight Billing System Saved a Logistics Firm from Losing 3000 Yuan Daily
Java Architect Handbook
Java Architect Handbook
Aug 5, 2026 · Backend Development

Spring Boot Deployment: Jar vs War – Key Differences Explained

When a Spring Boot project is packaged as a jar it runs with the embedded Tomcat using the application's own configuration, while a war package relies on an external Tomcat container, adopts the container's settings such as the default 8080 port, and requires additional Maven configuration and a ServletInitializer class.

MavenPackagingSpring Boot
0 likes · 14 min read
Spring Boot Deployment: Jar vs War – Key Differences Explained
samdeepthink
samdeepthink
Aug 5, 2026 · Backend Development

Building Enterprise‑Level CAS SSO: Lessons from Our First Implementation

When a company’s internal tools each required separate logins, the team built an enterprise‑grade CAS single sign‑on system that unified identity, login entry, logout handling, and extensible integration, and they document the entire process across nine detailed articles.

CASEnterprise AuthenticationSSO
0 likes · 7 min read
Building Enterprise‑Level CAS SSO: Lessons from Our First Implementation
Ray's Galactic Tech
Ray's Galactic Tech
Aug 4, 2026 · Backend Development

Spring Boot & Netty MQTT Platform: Multi‑Protocol and Modular Design

This guide walks through building a high‑performance, scalable MQTT access gateway for IoT using Spring Boot for service orchestration and Netty for connection handling, covering protocol fundamentals, modular architecture, multi‑protocol adaptation, session management, high‑concurrency optimizations, clustering, observability, and deployment best practices.

IoTKubernetesMQTT
0 likes · 40 min read
Spring Boot & Netty MQTT Platform: Multi‑Protocol and Modular Design
java1234
java1234
Aug 4, 2026 · Backend Development

Why Spring Boot Sticks with Jackson as Its Default JSON Library

The article explains why Spring Boot continues to use Jackson as its default JSON serializer, detailing the automatic ObjectMapper/JsonMapper creation, the HTTP message conversion process, Jackson’s balanced strengths, practical code samples, and how to switch to alternatives like Gson, JSON‑B, or Fastjson2.

Fastjson2GsonJackson
0 likes · 15 min read
Why Spring Boot Sticks with Jackson as Its Default JSON Library
Java Tech Workshop
Java Tech Workshop
Aug 4, 2026 · Databases

R2DBC vs JDBC: Choosing the Right Persistence for Reactive Spring Boot Projects

This article compares Spring Data JDBC and Spring Data R2DBC for Spring Boot 3.x/4.x projects, detailing setup, Maven dependencies, configuration, entity definitions, repository and service implementations, transaction handling, performance trade‑offs, and provides a hybrid approach that wraps JDBC calls in reactive Monos for WebFlux, helping developers decide which persistence layer best fits their reactive architecture.

Database AccessJDBCR2DBC
0 likes · 22 min read
R2DBC vs JDBC: Choosing the Right Persistence for Reactive Spring Boot Projects
Linyb Geek Road
Linyb Geek Road
Aug 4, 2026 · Backend Development

Why AI Coding Is Slower in Java and Five Steps to Build a Harness Environment

The article explains why AI‑assisted coding works smoothly for lightweight projects but stalls on Java micro‑services due to cloud‑only dependencies, and presents a five‑principle harness‑engineering approach—dependency inversion, zero‑intrusion profile isolation, CLI tool integration, local validation scripts, and a checklist—to create a fully local, AI‑friendly development loop that dramatically reduces iteration time.

AI codingCLIDependency Inversion
0 likes · 21 min read
Why AI Coding Is Slower in Java and Five Steps to Build a Harness Environment
Java Tech Enthusiast
Java Tech Enthusiast
Aug 3, 2026 · Backend Development

JDK 27 Switches Default GC to G1—Why Your Unchanged Java Service Might Slow Down

JDK 27 changes the default garbage collector from a resource‑aware Serial GC to G1, which can unexpectedly increase CPU usage, alter latency and throughput for small‑container Java services even when no code or JVM flags are changed, so teams must verify the GC in use and benchmark both collectors under realistic limits.

G1 GCGarbage CollectionJDK 27
0 likes · 22 min read
JDK 27 Switches Default GC to G1—Why Your Unchanged Java Service Might Slow Down
Java Tech Workshop
Java Tech Workshop
Aug 3, 2026 · Backend Development

A Ready‑to‑Use Spring Boot Template for Seamless Third‑Party Integration

The article explains why ad‑hoc third‑party integrations quickly become unmaintainable, identifies four common pain points, and presents a layered architecture using template method, strategy and factory patterns that abstracts common concerns such as retries, logging and signing, dramatically reducing duplicated code and maintenance effort.

Backend ArchitectureSpring BootStrategy Pattern
0 likes · 20 min read
A Ready‑to‑Use Spring Boot Template for Seamless Third‑Party Integration
Java Tech Enthusiast
Java Tech Enthusiast
Aug 2, 2026 · Backend Development

Boost Excel Import/Export Performance in Spring Boot with EasyExcel

The article explains why native Apache POI causes memory‑explosion and maintenance headaches for Excel import/export in Java back‑ends, introduces Alibaba's EasyExcel as a low‑memory, annotation‑driven alternative, and provides step‑by‑step Spring Boot code for exporting, importing, custom conversion, validation, complex headers, pagination, template filling, and common pitfalls with concrete solutions.

AnnotationEasyExcelExcel export
0 likes · 16 min read
Boost Excel Import/Export Performance in Spring Boot with EasyExcel
Java Tech Workshop
Java Tech Workshop
Jul 31, 2026 · Backend Development

Building a Pluggable LLM Gateway with Spring Boot

The article explains why enterprise applications need a unified large‑model gateway, outlines a layered architecture using Spring Boot 3.x, strategy pattern and interface‑driven design, and provides production‑grade features such as retry, circuit‑breaker, token accounting and easy addition of new model providers.

GatewayLLMOpenFeign
0 likes · 19 min read
Building a Pluggable LLM Gateway with Spring Boot
Java Tech Enthusiast
Java Tech Enthusiast
Jul 30, 2026 · Backend Development

Why Spring Boot 4.0 Dropped Undertow and How to Migrate Your Projects

Spring Boot 4.0 removes support for the Undertow embedded server because it is not compatible with the required Servlet 6.1 baseline and lacks sufficient maintenance, prompting developers to switch to Tomcat or Jetty and follow detailed migration steps to avoid startup failures and configuration loss.

JettyMigrationServlet 6.1
0 likes · 12 min read
Why Spring Boot 4.0 Dropped Undertow and How to Migrate Your Projects
Java Tech Workshop
Java Tech Workshop
Jul 29, 2026 · Backend Development

Why Spring Boot’s Built‑in StopWatch Is a Cleaner Way to Measure Execution Time

The article explains the drawbacks of manually using System.currentTimeMillis for multi‑stage timing, introduces Spring’s StopWatch utility from spring‑core, demonstrates its API and code examples, shows three common usage scenarios, warns about pitfalls, compares it with raw timers, and argues why Spring itself adopts StopWatch for concise, structured performance monitoring.

AOPSpringSpring Boot
0 likes · 12 min read
Why Spring Boot’s Built‑in StopWatch Is a Cleaner Way to Measure Execution Time
Su San Talks Tech
Su San Talks Tech
Jul 29, 2026 · Backend Development

Why Spring Boot 4.0 Dropped Undertow and How to Migrate

Spring Boot 4.0, built on Spring Framework 7, requires Servlet 6.1, leading to the removal of Undertow support; the article explains the technical reasons, the impact on existing projects, and provides step‑by‑step migration paths to Tomcat or Jetty, including configuration changes and risk considerations.

JettyMigrationServlet 6.1
0 likes · 13 min read
Why Spring Boot 4.0 Dropped Undertow and How to Migrate
Coder Trainee
Coder Trainee
Jul 27, 2026 · Backend Development

From Zero to One: Build a Smart Table Reservation System with Triple‑Endpoint Architecture and Apple‑Style Design

This article walks through the end‑to‑end creation of a production‑grade table‑reservation platform, covering the three‑tier client architecture (WeChat Mini‑Program, H5/App via UniApp, and a Vue3 + Element Plus PC admin), a dual Spring Boot backend, Redis distributed locking combined with MySQL unique indexes for high‑concurrency seat booking, JWT‑based authentication, RBAC permission control, and an Apple‑inspired design system, all illustrated with concrete code snippets and deployment tips.

JWTRBACRedis Lock
0 likes · 21 min read
From Zero to One: Build a Smart Table Reservation System with Triple‑Endpoint Architecture and Apple‑Style Design
Java Architect Handbook
Java Architect Handbook
Jul 27, 2026 · Backend Development

Druid Crashed in Production? Essential Optimizations for Spring Boot

The article explains why Druid connection pools can fail in production and provides a step‑by‑step guide to extreme optimization, covering environment setup, core pool parameter tuning, monitoring with StatFilter and web UI, security hardening, leak detection, dynamic adjustments, and common pitfalls.

Advanced OptimizationConnection PoolDruid
0 likes · 15 min read
Druid Crashed in Production? Essential Optimizations for Spring Boot
Java Tech Workshop
Java Tech Workshop
Jul 27, 2026 · Backend Development

Spring Boot + EasyExcel: High‑Performance, Elegant Excel Import/Export

This article explains why native Apache POI causes memory‑heavy, boilerplate Excel import/export code, introduces Alibaba's EasyExcel as a low‑memory, annotation‑driven alternative, and provides step‑by‑step Spring Boot examples for exporting, importing, custom conversion, validation, pagination, and template filling while highlighting common pitfalls and solutions.

EasyExcelExcel exportExcel import
0 likes · 15 min read
Spring Boot + EasyExcel: High‑Performance, Elegant Excel Import/Export
Lobster Programming
Lobster Programming
Jul 27, 2026 · Backend Development

Mastering Liteflow: Core Concepts and a Real‑World Spring Boot Demo

This article introduces the Liteflow rule‑engine framework, explains its core concepts, syntax, and configuration options, and walks through a complete Spring Boot 3.2 / Java 17 project that demonstrates building, deploying, and testing a multi‑step workflow with practical code examples.

EL SyntaxJava 17LiteFlow
0 likes · 14 min read
Mastering Liteflow: Core Concepts and a Real‑World Spring Boot Demo
Java Tech Workshop
Java Tech Workshop
Jul 26, 2026 · Backend Development

Which Executes First in Spring Boot: Filter, Interceptor, or AOP?

The article explains the exact execution order of Spring Boot's Filter, Interceptor, and AOP layers, details the nine‑step request lifecycle, clarifies sorting rules, outlines common pitfalls, and provides guidance on choosing the right component for specific scenarios.

AOPExecution OrderInterceptor
0 likes · 15 min read
Which Executes First in Spring Boot: Filter, Interceptor, or AOP?
The Dominant Programmer
The Dominant Programmer
Jul 25, 2026 · Artificial Intelligence

Complete Guide to Qoder’s .qoder Configuration Directory

This article explains the purpose, structure, and usage of Qoder’s .qoder directory, detailing the rules and repowiki sub‑folders, how they feed AI context, example Spring Boot configurations, comparisons with other AI tools, and best‑practice recommendations.

AI code generationAI toolingQoder
0 likes · 12 min read
Complete Guide to Qoder’s .qoder Configuration Directory
Java Tech Workshop
Java Tech Workshop
Jul 25, 2026 · Backend Development

Build a Leave Approval Workflow in Spring Boot with Flowable Using Three Annotations

This article shows how to replace hard‑coded if‑else approval logic with Flowable workflow in a Spring Boot 3.x project, using the three core annotations @EnableProcessApplication, @Deployment and @ProcessVariable to auto‑configure the engine, deploy BPMN files, inject variables, and implement a complete leave‑request service.

BPMNFlowableSpring Boot
0 likes · 16 min read
Build a Leave Approval Workflow in Spring Boot with Flowable Using Three Annotations
Ray's Galactic Tech
Ray's Galactic Tech
Jul 22, 2026 · Backend Development

From Chaos to Control: A Complete Spring Boot Logging Guide with 8 Production Scenarios

The article analyzes why logging in modern Spring Boot microservices shifts from a simple debug tool to a critical data pipeline, compares Logback and Log4j2 async setups, reveals hidden costs and risks, and walks through eight concrete production scenarios to build a controllable, high‑performance logging architecture.

KubernetesSpring Bootasynchronous logging
0 likes · 25 min read
From Chaos to Control: A Complete Spring Boot Logging Guide with 8 Production Scenarios
Java Tech Workshop
Java Tech Workshop
Jul 22, 2026 · Backend Development

Spring Boot JWT Login Authentication with Seamless Refresh Explained

This article explains how to implement a double‑token JWT authentication scheme in Spring Boot 3.x, using short‑lived AccessTokens for API security and long‑lived RefreshTokens for seamless background renewal, while addressing token revocation, refresh thresholds, blacklist handling, and multi‑device considerations.

JWTRefresh TokenSpring Boot
0 likes · 23 min read
Spring Boot JWT Login Authentication with Seamless Refresh Explained
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 22, 2026 · Backend Development

5 Spring Boot Transaction Optimizations That Drastically Boost Performance

This article examines five practical ways to improve Spring Boot 3.5.0 transaction performance—read‑only transactions, explicit propagation settings, correctly sized HikariCP pools, JDBC prepared‑statement caching, and Hibernate batch writes—showing the underlying overhead and providing concrete code and configuration examples.

HikariCPJPASpring Boot
0 likes · 13 min read
5 Spring Boot Transaction Optimizations That Drastically Boost Performance
The Dominant Programmer
The Dominant Programmer
Jul 21, 2026 · Backend Development

Practical Guide to Applying Domain‑Driven Design in Spring Boot Microservices

This guide explains Domain‑Driven Design (DDD) and shows how to structure Spring Boot microservices by organizing code around business domains, detailing strategic and tactical concepts, package layouts, layer responsibilities, cross‑domain communication, comparisons with traditional layering, evolution steps, and common FAQs.

Backend ArchitectureDDDDomain-Driven Design
0 likes · 19 min read
Practical Guide to Applying Domain‑Driven Design in Spring Boot Microservices
Ray's Galactic Tech
Ray's Galactic Tech
Jul 21, 2026 · Backend Development

AI Customer Service at Millions Scale: Chat API to Function Calling (SpringBoot)

The article details how a Spring Boot‑based intelligent customer service evolves from a simple chat endpoint to a robust Function Calling architecture, addressing challenges such as real‑time data access, permission checks, idempotency, error handling, token management, and scaling to tens of millions of daily conversations.

AI Customer ServiceFunction CallingSpring AI
0 likes · 27 min read
AI Customer Service at Millions Scale: Chat API to Function Calling (SpringBoot)
Ray's Galactic Tech
Ray's Galactic Tech
Jul 21, 2026 · Backend Development

14 Painful Spring Boot Cache Pitfalls and How to Build a High‑Availability Architecture

This article walks through 14 real‑world failure scenarios of Spring Boot distributed caching, explains why high cache hit rates are misleading, and provides concrete analysis, code samples, and step‑by‑step recommendations for designing a resilient cache layer that isolates faults, handles hot keys, and ensures data consistency across Redis, local caches, and databases.

Cache invalidationHigh AvailabilityKubernetes
0 likes · 37 min read
14 Painful Spring Boot Cache Pitfalls and How to Build a High‑Availability Architecture
Black & White Path
Black & White Path
Jul 21, 2026 · Information Security

Fastjson RCE Vulnerability Deep Dive with Exploit POC

Security researchers disclosed a remote code execution flaw in fastjson 1.2.66‑1.2.83 that bypasses autoType, exploits @JSONType with Spring Boot’s LaunchedURLClassLoader, and works on JDK 8, providing detailed payloads, proof‑of‑concept scripts, detection tools, and mitigation recommendations.

DetectionFastjsonRCE
0 likes · 9 min read
Fastjson RCE Vulnerability Deep Dive with Exploit POC
Su San Talks Tech
Su San Talks Tech
Jul 20, 2026 · Backend Development

What’s New in Jackson 3? A Complete Migration Guide

This article explains the major breaking changes introduced in Jackson 3—including the JDK 17 baseline, package and groupId renames, immutable JsonMapper, unchecked exceptions, default configuration shifts, performance tweaks, and module consolidation—while providing step‑by‑step migration advice and a quick‑reference table for developers upgrading from Jackson 2.

JacksonMigrationSpring Boot
0 likes · 16 min read
What’s New in Jackson 3? A Complete Migration Guide
IT Services Circle
IT Services Circle
Jul 20, 2026 · Backend Development

Why Spring Is Dropping Feign: A Deep Dive into @HttpExchange vs Feign

This article analyzes why Spring Framework introduced the native @HttpExchange HTTP client to replace OpenFeign, comparing their architectures, dependencies, proxy mechanisms, performance benchmarks, and offering migration guidance for developers deciding between the two declarative HTTP solutions.

FeignHTTP clientReactive
0 likes · 14 min read
Why Spring Is Dropping Feign: A Deep Dive into @HttpExchange vs Feign
Java Tech Workshop
Java Tech Workshop
Jul 20, 2026 · Backend Development

Spring Boot 4’s Underrated Feature: Spring Data AOT Explained

Spring Data AOT in Spring Boot 4 moves all repository parsing, reflection and query generation to compile time, dramatically cutting startup time, reducing memory and Metaspace usage, enabling compile‑time SQL validation, simplifying GraalVM native‑image configuration, and providing measurable performance gains backed by real‑world benchmarks.

AOTGraalVMNative Image
0 likes · 17 min read
Spring Boot 4’s Underrated Feature: Spring Data AOT Explained
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 20, 2026 · Information Security

Simplify Password Validation with Passay: One‑Line Security in Java

This article shows how the open‑source Passay library replaces hand‑written password regex with a unified, extensible rule set, covering dependency setup, rule definitions, custom messages, N‑of‑M character requirements, history checks, and password generation, all demonstrated with runnable Java code.

MavenPassayPassword Validation
0 likes · 18 min read
Simplify Password Validation with Passay: One‑Line Security in Java
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 19, 2026 · Backend Development

8 Java File‑Writing Techniques for Large Files, High Concurrency, and Cross‑Platform Scenarios

This article walks through eight Java file‑writing approaches—from the modern Files.writeString() API to low‑level FileChannel and asynchronous channels—detailing their parameters, performance characteristics, and ideal use cases such as large files, high‑throughput logging, and cross‑platform line handling.

AsynchronousNIOSpring Boot
0 likes · 10 min read
8 Java File‑Writing Techniques for Large Files, High Concurrency, and Cross‑Platform Scenarios
Cloud Architecture
Cloud Architecture
Jul 18, 2026 · Backend Development

RabbitMQ Idempotent Consumption: Keeping Duplicate Processing Within Business Limits

The article explains why RabbitMQ provides at‑least‑once delivery, how duplicate consumption arises in publish‑subscribe scenarios, and presents a step‑by‑step design—including deduplication keys, a deduplication table, transactional writes, proper ACK ordering, and a checklist of common pitfalls—to ensure idempotent processing stays within acceptable business tolerances.

Database TransactionIdempotencyMessage Queue
0 likes · 20 min read
RabbitMQ Idempotent Consumption: Keeping Duplicate Processing Within Business Limits
Java Tech Workshop
Java Tech Workshop
Jul 18, 2026 · Backend Development

Spring Boot 4.0 + gRPC: Minimal Integration in 4 Steps, Faster Than REST

This tutorial shows how to integrate gRPC with Spring Boot 4.0 using the grpc‑spring‑boot‑starter in just four concise steps, covering a side‑by‑side comparison with REST, Maven setup, protobuf contract definition, server implementation, and client invocation with streaming support.

ProtobufSpring BootgRPC
0 likes · 14 min read
Spring Boot 4.0 + gRPC: Minimal Integration in 4 Steps, Faster Than REST
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 18, 2026 · Backend Development

One Annotation to Elegantly Bind Custom Objects in Spring Boot

This article demonstrates three ways to bind a custom Author object from a single comma‑separated string in Spring Boot 3.5.0 using a custom ConversionService, a PropertyEditor, and the @ConfigurationPropertiesBinding annotation, complete with code samples and resulting output.

ConfigurationPropertiesConfigurationPropertiesBindingConversionService
0 likes · 6 min read
One Annotation to Elegantly Bind Custom Objects in Spring Boot
Linyb Geek Road
Linyb Geek Road
Jul 18, 2026 · Cloud Native

How to Shrink Spring Boot Docker Images with JLink

This guide explains how to use JLink together with jdeps and a multi‑stage Docker build to create a minimal custom Java runtime, reducing Spring Boot Docker image size from over 200 MB to under 50 MB while improving startup speed and security.

DockerJLinkSpring Boot
0 likes · 10 min read
How to Shrink Spring Boot Docker Images with JLink
Linyb Geek Road
Linyb Geek Road
Jul 18, 2026 · Cloud Native

How to Accelerate Spring Boot Startup on Kubernetes Using CRaC

This guide walks through enabling CRaC in a Spring Boot application, building a CRaC‑compatible Docker image, creating a checkpoint job in Kubernetes, restoring the snapshot at pod start, and comparing the startup speed with GraalVM native compilation.

Azul ZuluCRaCDocker
0 likes · 11 min read
How to Accelerate Spring Boot Startup on Kubernetes Using CRaC
CodeNotes
CodeNotes
Jul 16, 2026 · Backend Development

Proper Enum Handling Across Query Params, Request Body, and Database in Spring Boot

The article demonstrates how Spring Boot can automatically convert strings to enums for query and path parameters, introduces a unified StringToEnumConverterFactory, configures Jackson for case‑insensitive enum deserialization in @RequestBody, and uses a JPA AttributeConverter to persist enums, removing repetitive manual conversion code.

ConverterFactoryEnumJPA
0 likes · 8 min read
Proper Enum Handling Across Query Params, Request Body, and Database in Spring Boot
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 16, 2026 · Backend Development

Manipulate Any Complex JSON with a Single JSONata Expression in Spring Boot

This article introduces JSONata4Java, shows how to add the library to a Spring Boot 3.5.0 project, and demonstrates a wide range of JSONata expressions—including property access, predicates, functions, object construction, grouping, aggregation, and sorting—through concrete code examples and expected outputs.

JSON transformationJSONataJSONata4Java
0 likes · 11 min read
Manipulate Any Complex JSON with a Single JSONata Expression in Spring Boot
CodeNotes
CodeNotes
Jul 14, 2026 · Backend Development

4 Common @RequestBody Pitfalls That Can Crash Your Spring Apps

The article explains how @RequestBody binds JSON via HttpMessageConverter using Jackson, then details four frequent issues—empty bodies, extra or unknown fields, date‑format mismatches, and deep nesting causing circular serialization—and provides concrete code‑level solutions such as validation, global exception handling, Jackson configuration, and DTO usage.

DTOJacksonJavaTimeModule
0 likes · 10 min read
4 Common @RequestBody Pitfalls That Can Crash Your Spring Apps
LuTiao Programming
LuTiao Programming
Jul 14, 2026 · Backend Development

Stop Writing Ad‑hoc Reports for Your Boss: Build a One‑sentence Data Query Assistant with GPT + Spring Boot

The article explains why Java developers waste time on repetitive ad‑hoc reports, proposes using GPT as a natural‑language front‑end to call secure Spring Boot metric tools, and walks through a step‑by‑step implementation that includes tool definition, permission checks, audit logging, and safe prompt engineering.

AIData QueryGPT
0 likes · 16 min read
Stop Writing Ad‑hoc Reports for Your Boss: Build a One‑sentence Data Query Assistant with GPT + Spring Boot
The Dominant Programmer
The Dominant Programmer
Jul 14, 2026 · Backend Development

How to Fix Spring AI Ollama Timeout: Full Guide to Configuring OkHttp Read Timeout

The article explains why Spring AI Ollama requests time out after 10 seconds despite server‑side timeout settings, analyzes the independent OkHttp read timeout and other ineffective configurations, and provides a step‑by‑step solution that creates a custom OllamaApi bean with a longer OkHttp read timeout to permanently fix the issue.

ConfigurationOllamaSpring AI
0 likes · 10 min read
How to Fix Spring AI Ollama Timeout: Full Guide to Configuring OkHttp Read Timeout
Coder Trainee
Coder Trainee
Jul 14, 2026 · Backend Development

Top 10 Must‑Know Spring Interview Questions for Java Developers

This article walks through the ten most frequently asked Spring interview topics—including IoC/DI concepts, bean lifecycle, AOP mechanics, circular‑dependency resolution, @Transactional behavior, Spring Boot startup steps, auto‑configuration, @Autowired vs @Resource, bean scopes, and the differences between servlet filters and Spring interceptors—providing concrete code examples and key points that can earn interviewers' extra credit.

AOPBean ScopeIoC
0 likes · 12 min read
Top 10 Must‑Know Spring Interview Questions for Java Developers
Cloud Architecture
Cloud Architecture
Jul 14, 2026 · Backend Development

Building a Billion‑Message, Millisecond‑Scale Private Messaging System with Spring Boot, RabbitMQ & Redis

This article presents a production‑grade design for a social private‑messaging system that handles billions of messages with millisecond latency, detailing how MySQL serves as the message fact store, RabbitMQ provides low‑latency distribution, Redis manages online state and indexes, and Outbox plus idempotent consumption ensure reliability and ordering.

IdempotencyRedisSpring Boot
0 likes · 35 min read
Building a Billion‑Message, Millisecond‑Scale Private Messaging System with Spring Boot, RabbitMQ & Redis
Ray's Galactic Tech
Ray's Galactic Tech
Jul 14, 2026 · Cloud Native

Spring Boot + Netty MQTT Gateway for Million Connections & Millisecond Push

To support millions of persistent MQTT connections with sub‑millisecond latency, the article walks through a Spring Boot + Netty cloud‑native gateway design that separates connection, event, state and governance planes, details async authentication, back‑pressure handling, command state machines, and loss‑less Kubernetes roll‑outs.

Cloud NativeGatewayKafka
0 likes · 38 min read
Spring Boot + Netty MQTT Gateway for Million Connections & Millisecond Push
java1234
java1234
Jul 14, 2026 · Backend Development

Quarkus: Java Framework Up to 5× Faster Than Spring Boot, Uses Half the Memory

Quarkus, Red Hat's cloud‑native Java framework, achieves dramatically faster startup (0.3‑1 s vs 2‑5 s) and roughly half the memory usage (150‑200 MB vs 300‑500 MB) by moving many optimizations to compile time, and offers a Spring‑like developer experience with extensions, reactive support, and hot‑reload tooling.

Dev ModeKubernetesQuarkus
0 likes · 9 min read
Quarkus: Java Framework Up to 5× Faster Than Spring Boot, Uses Half the Memory
Java Tech Workshop
Java Tech Workshop
Jul 14, 2026 · Backend Development

Build a Smart Vending Cabinet with Spring Boot and WeChat Pay: Scan‑to‑Open and Auto‑Deduction

This article details a complete Spring Boot implementation of a smart vending cabinet that uses WeChat QR‑code scanning to open doors, reports purchased items, and automatically deducts payment via WeChat's no‑password delegated‑deduction API, covering configuration, database design, code examples, and error‑handling strategies.

Auto DeductionBackend IntegrationDatabase Design
0 likes · 22 min read
Build a Smart Vending Cabinet with Spring Boot and WeChat Pay: Scan‑to‑Open and Auto‑Deduction
Niu Liu
Niu Liu
Jul 14, 2026 · Artificial Intelligence

SmartCall: Building an AI‑Powered Voice Customer Service Center

SmartCall is an open‑source AI‑driven call‑center platform that combines large language models, Asterisk telephony, IVR orchestration, ASR/TTS, and a knowledge‑base agent to deliver scalable, emotion‑aware voice customer service across industries.

AIAsteriskIVR
0 likes · 13 min read
SmartCall: Building an AI‑Powered Voice Customer Service Center
Cloud Architecture
Cloud Architecture
Jul 13, 2026 · Backend Development

Production-Grade Payment System Guide: Java Implementation for Alipay & WeChat All-Channel Integration

This article explains why a payment system is more than a simple SDK integration, presents a four‑layer architecture (access, state, event, governance), details state machines, idempotent callbacks, outbox pattern, reconciliation, high‑concurrency handling, observability, security, and provides Java code examples for integrating Alipay and WeChat across all channels.

AlipayIdempotencyReconciliation
0 likes · 29 min read
Production-Grade Payment System Guide: Java Implementation for Alipay & WeChat All-Channel Integration
SpringMeng
SpringMeng
Jul 13, 2026 · Backend Development

Add AI to a Spring Boot Project in a Few Lines with Spring AI 2.0

This guide walks through integrating Spring AI 2.0 into a Spring Boot application, covering Maven dependency setup, model configuration, ChatClient usage for synchronous and streaming calls, Redis‑backed chat memory for multi‑turn conversations, and testing with Postman and a UI component.

AIChatbotOpenAI
0 likes · 14 min read
Add AI to a Spring Boot Project in a Few Lines with Spring AI 2.0
Xike
Xike
Jul 13, 2026 · Backend Development

Getting Started with a Hands‑On Microservices Learning Project

This article introduces a runnable microservices learning project built with three independent Spring Boot applications (gateway, order, stock) and middleware such as Nacos, MySQL, Redis, RocketMQ, and Seata, guiding readers through cloning the repository, starting the environment with Docker Compose, and verifying the end‑to‑end product‑order‑stock flow.

Docker ComposeNacosRedis
0 likes · 12 min read
Getting Started with a Hands‑On Microservices Learning Project
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 13, 2026 · Backend Development

5 Elegant Spring Boot Gray Release Techniques You Can Implement Immediately

This article walks through five practical ways to implement gray (canary) releases in Spring Boot 3.5.0, covering gateway‑based weight and header routing, programmatic route configuration, a custom reactive load‑balancer, and application‑layer annotations with custom HandlerMapping, each illustrated with concrete code samples.

AnnotationCustom Load BalancerSpring Boot
0 likes · 12 min read
5 Elegant Spring Boot Gray Release Techniques You Can Implement Immediately
LuTiao Programming
LuTiao Programming
Jul 12, 2026 · Backend Development

Stop Using GPT Just to Write Code—Turn Your Spring Boot Service into an AI‑Callable Tool

Java developers should move beyond using GPT for code generation and instead expose existing Spring Boot services as secure, auditable AI tools, covering permission checks, data desensitization, tool descriptions, system prompts, and comprehensive logging to safely integrate GPT into business workflows.

AI Tool CallingGPTJava Backend
0 likes · 17 min read
Stop Using GPT Just to Write Code—Turn Your Spring Boot Service into an AI‑Callable Tool
Raymond Ops
Raymond Ops
Jul 11, 2026 · Databases

How to Diagnose and Optimize Production Database Connection Pool Exhaustion

This article walks through the principles of database connection pools, common causes of pool exhaustion such as leaks, mis‑configuration, slow SQL and DB limits, and provides a step‑by‑step methodology with monitoring, thread‑stack analysis, and concrete configuration and SQL optimizations to restore stability.

Connection PoolHikariCPSQL Optimization
0 likes · 29 min read
How to Diagnose and Optimize Production Database Connection Pool Exhaustion
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 11, 2026 · Backend Development

Boost Performance in Spring Boot with a Single Batch‑Processing Annotation

The article demonstrates how to create a custom @BatchProcess annotation combined with AOP to aggregate high‑frequency requests into batches, persist metadata in Redis, and process them efficiently, thereby reducing connection, I/O, and CPU overhead in distributed, high‑concurrency Spring Boot 3.5.0 applications.

AOPBatch ProcessingCustom Annotation
0 likes · 14 min read
Boost Performance in Spring Boot with a Single Batch‑Processing Annotation
LuTiao Programming
LuTiao Programming
Jul 10, 2026 · Backend Development

Using Codex to Automate Full Java Spring Boot Tasks, Not Just Generate Code

The article explains how Java developers can treat Codex as an engineering agent that executes complete, well‑scoped Spring Boot tasks—by defining project rules, isolating work in a Git worktree, crafting detailed prompts with acceptance criteria, and reviewing changes in stages—to save repetitive development effort.

AGENTS.mdAI codingAutomation
0 likes · 18 min read
Using Codex to Automate Full Java Spring Boot Tasks, Not Just Generate Code
Yumin Fish Harvest
Yumin Fish Harvest
Jul 10, 2026 · Backend Development

How to Layer Code with DDD: Four‑Layer Architecture, DIP & Hexagonal

This article explains why and how to separate a system into four DDD layers—User Interface, Application, Domain, and Infrastructure—illustrates the benefits of clear responsibilities, demonstrates dependency inversion and hexagonal architecture with concrete Spring Boot examples, and warns of common pitfalls.

DDDDependency InversionSpring Boot
0 likes · 10 min read
How to Layer Code with DDD: Four‑Layer Architecture, DIP & Hexagonal
Yumin Fish Harvest
Yumin Fish Harvest
Jul 10, 2026 · Backend Development

When One Aggregate Isn’t Enough: Using Domain Services and Domain Events

The article explains why cross‑aggregate business logic belongs in domain services, how domain events capture immutable business facts, and demonstrates practical Spring Boot implementations—including in‑process publishing, message‑queue integration, and the Outbox pattern—while highlighting pitfalls and verification techniques.

Domain EventDomain ServiceDomain-Driven Design
0 likes · 10 min read
When One Aggregate Isn’t Enough: Using Domain Services and Domain Events
Java Tech Enthusiast
Java Tech Enthusiast
Jul 10, 2026 · Artificial Intelligence

Add AI to Your Java Project in Just a Few Lines with Spring AI 2.0

Spring AI 2.0 lets Java developers integrate large‑language‑model capabilities with minimal code by adding a starter, configuring model parameters, injecting a ChatClient bean, and optionally enabling Redis‑backed chat memory for multi‑turn conversations, all demonstrated with runnable examples and screenshots.

AI integrationChat MemoryChatGPT
0 likes · 13 min read
Add AI to Your Java Project in Just a Few Lines with Spring AI 2.0
Java Architect Handbook
Java Architect Handbook
Jul 10, 2026 · Artificial Intelligence

Spring AI 2.0 vs Spring AI Alibaba: Which One Should You Choose?

This article compares Spring AI 2.0 and Spring AI Alibaba, detailing their design philosophies, core architectures, recent upgrades, code examples, strengths, weaknesses, and ideal use‑cases, and explains how the two frameworks can be combined for enterprise AI solutions.

AI integrationCloud NativeGraph engine
0 likes · 19 min read
Spring AI 2.0 vs Spring AI Alibaba: Which One Should You Choose?
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 10, 2026 · Backend Development

Goodbye ResponseEntity: 4 Declarative Patterns for Cleaner Spring Boot APIs

The article shows how overusing ResponseEntity in Spring Boot controllers makes code noisy and mixes business logic with HTTP handling, and introduces four declarative alternatives—@ResponseStatus on methods or exceptions, direct object returns, global ProblemDetail via @ControllerAdvice, and a ResponseBodyAdvice wrapper—to produce cleaner, more testable APIs.

API designControllerAdviceProblemDetail
0 likes · 16 min read
Goodbye ResponseEntity: 4 Declarative Patterns for Cleaner Spring Boot APIs
The Dominant Programmer
The Dominant Programmer
Jul 9, 2026 · Backend Development

Full Spring Boot Example: Integrating Spring AI with Local Ollama for Fast AI Chat

This tutorial walks through installing Ollama, configuring JDK 17, adding Spring AI dependencies, setting up application.yml, implementing a chat controller, creating launch scripts, testing the endpoints, and comparing local Ollama with Alibaba Cloud Bailei, highlighting cost‑free, private, offline AI chat in a Spring Boot project.

ChatbotOllamaSpring AI
0 likes · 16 min read
Full Spring Boot Example: Integrating Spring AI with Local Ollama for Fast AI Chat
Cloud Architecture
Cloud Architecture
Jul 9, 2026 · Backend Development

How Spring Boot, Kafka, Redis, and MongoDB Power Real‑Time GPS Tracking for Millions of Vehicles

This article walks through a production‑grade architecture that uses Spring Boot, Kafka, Redis, and MongoDB to ingest, buffer, order, and store high‑frequency vehicle GPS data from hundreds of thousands of devices while guaranteeing low latency, scalability, fault‑tolerance, and accurate replay capabilities.

KafkaMongoDBRedis
0 likes · 38 min read
How Spring Boot, Kafka, Redis, and MongoDB Power Real‑Time GPS Tracking for Millions of Vehicles
Java Tech Enthusiast
Java Tech Enthusiast
Jul 9, 2026 · Backend Development

Why AI Coding Tools Are Racing to Task Orchestration—and What It Means for Java Developers

The latest updates to Codex, Claude Code, Cursor and ZCode show AI coding tools shifting from single‑prompt chat to distributed task orchestration, prompting Java teams to adopt persistent job queues, state machines, worktree isolation, OpenTelemetry tracing and fine‑grained retry policies to manage AI‑driven development pipelines.

AI codingJobRunrSpring Boot
0 likes · 20 min read
Why AI Coding Tools Are Racing to Task Orchestration—and What It Means for Java Developers
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 9, 2026 · Backend Development

5 Tips to Keep Your Spring Service Clean and High‑Quality

This article presents five practical patterns—single‑use‑case classes, a lightweight Facade, self‑validating input records, domain‑event side‑effects, and ports‑and‑adapters—that transform monolithic Spring @Service classes into modular, readable, testable, and transaction‑safe components, improving maintainability and extensibility.

Clean ArchitectureDomain EventsFacade
0 likes · 15 min read
5 Tips to Keep Your Spring Service Clean and High‑Quality
Java Tech Workshop
Java Tech Workshop
Jul 9, 2026 · Backend Development

Build a Custom Spring Boot Starter to Package Common Utilities for One-Click Integration

The article walks through creating a custom Spring Boot starter that bundles common utilities such as unified response wrapping, global exception handling, type converters, thread pools, login context, and data masking, showing the standard two‑module structure, Maven setup, configuration properties, conditional annotations, and usage in a business project.

MavenSpring Bootauto-configuration
0 likes · 15 min read
Build a Custom Spring Boot Starter to Package Common Utilities for One-Click Integration