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Selected Java Interview Questions
Selected Java Interview Questions
Jul 15, 2025 · Backend Development

Why MyBatis-Flex Outperforms MyBatis-Plus: Features, Benchmarks, and Quick Start

MyBatis-Flex is a lightweight, high‑performance MyBatis enhancement framework that offers flexible CRUD, powerful query capabilities, extensive database support, and significant speed advantages over MyBatis‑Plus, with detailed feature comparisons, performance benchmarks, and a step‑by‑step quick‑start guide.

MyBatis-FlexORMdatabase
0 likes · 9 min read
Why MyBatis-Flex Outperforms MyBatis-Plus: Features, Benchmarks, and Quick Start
Architect's Tech Stack
Architect's Tech Stack
Jul 15, 2025 · Backend Development

Mastering Graceful Shutdown in Spring Boot 2.3: A Complete Guide

This article explains Spring Boot 2.3's built‑in graceful shutdown feature, how to enable it with server.shutdown=graceful, configure timeout‑per‑shutdown‑phase, compare container behaviors, use the Actuator /shutdown endpoint, and provides code examples and practical steps to avoid data loss during termination.

ActuatorGraceful Shutdownjava
0 likes · 6 min read
Mastering Graceful Shutdown in Spring Boot 2.3: A Complete Guide
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 15, 2025 · Backend Development

9 Proven Ways to Speed Up Spring Boot 3 Startup Time

This article explains nine practical techniques—including narrowing component scans, enabling lazy initialization, excluding unused auto‑configurations, using a component indexer, tuning the database pool, avoiding heavy bean init tasks, leveraging CDS, running exploded jars, and employing GraalVM native images—to dramatically reduce Spring Boot 3 application startup time.

Performance Tuningjavaspring-boot
0 likes · 11 min read
9 Proven Ways to Speed Up Spring Boot 3 Startup Time
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 14, 2025 · Backend Development

Unlock 24 Powerful Spring Boot Utilities with Real‑World Code Samples

This article introduces 24 essential Spring Boot utility classes—covering bean handling, AOP support, core framework helpers, and common I/O and conversion tools—providing concise explanations and runnable code snippets that demonstrate how each utility simplifies everyday backend development.

Code ExamplesSpring FrameworkUtility Classes
0 likes · 17 min read
Unlock 24 Powerful Spring Boot Utilities with Real‑World Code Samples
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 11, 2025 · Backend Development

How to Solve Spring Boot Bidirectional JSON Recursion with 6 Jackson Techniques

This article explains why bidirectional entity relationships cause infinite JSON recursion in Spring Boot, demonstrates the problem with sample code and console output, and presents six practical Jackson solutions—including @JsonManagedReference, @JsonIdentityInfo, @JsonIgnore, @JsonView, and custom serializers—complete with code snippets and result screenshots.

BackendBidirectional relationshipJSON recursion
0 likes · 9 min read
How to Solve Spring Boot Bidirectional JSON Recursion with 6 Jackson Techniques
Architect
Architect
Jul 10, 2025 · Backend Development

7 Proven Techniques to Slash Spring Boot Startup Time by 70%

Learn seven practical strategies—including lazy initialization, precise component scanning, JVM tuning, auto‑configuration pruning, dependency slimming, delayed datasource connections, and AOT/layered compilation—to dramatically reduce Spring Boot application startup time, memory usage, and class loading, with real‑world performance comparisons.

AOT compilationauto-configurationjvm-tuning
0 likes · 9 min read
7 Proven Techniques to Slash Spring Boot Startup Time by 70%
Java Captain
Java Captain
Jul 10, 2025 · Backend Development

Mastering AOP in Spring Boot: From Basics to Practical Code

This article explains Aspect Oriented Programming, contrasts it with Object Oriented Programming, illustrates cross‑cutting concerns with real‑world examples, and provides a step‑by‑step guide—including Maven dependencies, annotation definitions, and execution expressions—to implement AOP in a Spring Boot application.

Aspect Oriented Programmingaopbackend-development
0 likes · 6 min read
Mastering AOP in Spring Boot: From Basics to Practical Code
JD Cloud Developers
JD Cloud Developers
Jul 9, 2025 · Backend Development

Boost Java Backend Performance with MyBatis-Plus LambdaQueryWrapper and Spring @Async

Learn how to combine MyBatis-Plus's type‑safe LambdaQueryWrapper with Spring Boot's @Async annotation to build readable, maintainable queries and execute them asynchronously, including configuration of custom thread pools, exception handling, transaction management, and practical use cases such as reporting and batch processing.

AsyncLambdaQueryWrappermybatis-plus
0 likes · 8 min read
Boost Java Backend Performance with MyBatis-Plus LambdaQueryWrapper and Spring @Async
Java Architect Essentials
Java Architect Essentials
Jul 8, 2025 · Backend Development

Diagnose Java Memory Leaks in Minutes with Spring Boot Actuator and Arthas

This article explains why traditional heap dump and stack trace analysis are cumbersome, and shows how combining Spring Boot Actuator metrics with the Arthas diagnostic tool provides real‑time monitoring, rapid object inspection, and precise leak root‑cause identification, dramatically speeding up Java OOM troubleshooting.

ActuatorArthasmemory leak
0 likes · 14 min read
Diagnose Java Memory Leaks in Minutes with Spring Boot Actuator and Arthas
Zhuanzhuan Tech
Zhuanzhuan Tech
Jul 8, 2025 · Backend Development

How to Build a Silent Printing Proxy for Windows Using Java and Spring Boot

This article explains the challenges of printing in a hybrid store‑warehouse environment, outlines the limitations of JavaScript‑based printing, and details a custom Java‑powered printing proxy that uses Spring Boot, printable APIs, executable packaging, and offset files to achieve silent, multi‑scenario printing on Windows.

Print OffsetPrint ServiceWindows
0 likes · 18 min read
How to Build a Silent Printing Proxy for Windows Using Java and Spring Boot
Java Tech Enthusiast
Java Tech Enthusiast
Jul 8, 2025 · Backend Development

Master Global Date Formatting in Spring Boot: Simple Tips

This article explains how to achieve consistent date and time formatting in Spring Boot applications by using SimpleDateFormat, configuring Jackson globally with spring.jackson properties, and applying @JsonFormat, @JsonComponent, and @Configuration annotations to handle various Java date types efficiently.

Date FormattingJSONannotations
0 likes · 7 min read
Master Global Date Formatting in Spring Boot: Simple Tips
Code Ape Tech Column
Code Ape Tech Column
Jul 8, 2025 · Backend Development

Mastering Spring Batch: Real-World Use Cases and Hands‑On Guide

This comprehensive guide explains why batch processing is essential, walks through typical banking, e‑commerce, logging and medical data scenarios, details Spring Batch's core architecture and components, provides step‑by‑step setup and code examples, and presents a production‑grade bank reconciliation case with monitoring and troubleshooting tips.

Batch ProcessingData IntegrationJob Scheduling
0 likes · 27 min read
Mastering Spring Batch: Real-World Use Cases and Hands‑On Guide
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 8, 2025 · Backend Development

Mastering Jackson: 5 Ways to Exclude Fields in Spring Boot JSON

This article explains five practical techniques for ignoring specific fields during JSON serialization and deserialization in Spring Boot using Jackson, covering class‑level, field‑level, type‑level, filter‑based, @JsonView, and custom serializer approaches with complete code examples and result screenshots.

Field Ignoringspring-boot
0 likes · 8 min read
Mastering Jackson: 5 Ways to Exclude Fields in Spring Boot JSON
Java Architect Essentials
Java Architect Essentials
Jul 7, 2025 · Backend Development

6 Proven Spring Boot Performance Hacks to Slash Response Time

Discover six practical Spring Boot optimization techniques—including Tomcat thread‑pool tuning, @Async asynchronous processing, HTTP caching, switching to Undertow, HikariCP connection pooling, and JVM memory settings—that transformed a sluggish e‑commerce service from 5‑second delays to sub‑1.5‑second response times.

AsyncHTTP CachingHikariCP
0 likes · 11 min read
6 Proven Spring Boot Performance Hacks to Slash Response Time
Top Architect
Top Architect
Jul 7, 2025 · Backend Development

Simplify Excel Import/Export in Spring Boot with an EasyExcel Wrapper

This article walks through building a reusable EasyExcel wrapper for Spring Boot, covering environment setup, step‑by‑step usage, full source code, common pitfalls like date formatting and POI version conflicts, and practical solutions to ensure reliable Excel import and export.

Data ConversionExcel ImportJava backend
0 likes · 20 min read
Simplify Excel Import/Export in Spring Boot with an EasyExcel Wrapper
Code Ape Tech Column
Code Ape Tech Column
Jul 7, 2025 · Operations

How to Deploy Graylog with Docker and Integrate It into Spring Boot

Learn step‑by‑step how to set up Graylog using Docker‑Compose, configure its inputs, and connect a Spring Boot application via Logback‑GELF, enabling centralized log aggregation and searchable queries across multiple service instances in a micro‑services environment.

DockerGrayloglog aggregation
0 likes · 8 min read
How to Deploy Graylog with Docker and Integrate It into Spring Boot
Architect's Guide
Architect's Guide
Jul 7, 2025 · Backend Development

Dynamic Data Source Switching in Spring Boot Using ThreadLocal & AbstractRoutingDataSource

This tutorial explains how to implement dynamic data source switching in Spring Boot by combining ThreadLocal with AbstractRoutingDataSource, covering custom context holders, configuration, annotation‑driven switching, dynamic addition of data sources, and complete code examples with test results.

Dynamic Data SourceThreadLocalabstractroutingdatasource
0 likes · 16 min read
Dynamic Data Source Switching in Spring Boot Using ThreadLocal & AbstractRoutingDataSource
Tech Freedom Circle
Tech Freedom Circle
Jul 7, 2025 · Backend Development

Elegant Spring Boot Parameter Validation: A P7 Engineer’s Guide

This article walks through Spring Boot’s built‑in parameter validation using JSR‑303/JSR‑380, compares @Valid and @Validated, shows how to configure global exception handling, implement group validation, fast‑fail mode, and custom constraints, and demonstrates both controller‑level and service‑level validation with complete code examples.

@Valid@ValidatedHibernate Validator
0 likes · 39 min read
Elegant Spring Boot Parameter Validation: A P7 Engineer’s Guide
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 7, 2025 · Backend Development

6 Practical Ways to Load External Configurations in Spring Boot 3

This article demonstrates six different techniques for loading external configuration data into Spring Boot 3 applications, covering command‑line arguments, spring.config.import, @PropertySource, EnvironmentPostProcessor, @TestPropertySource, and a custom PropertySourceLocator with complete code examples and expected outputs.

ConfigurationPropertiesEnvironmentPostProcessorExternal Configuration
0 likes · 9 min read
6 Practical Ways to Load External Configurations in Spring Boot 3
Java Architect Essentials
Java Architect Essentials
Jul 6, 2025 · Backend Development

How to Slash Spring Boot Startup Time by 80%: 10 Proven Optimizations

This article shares ten practical techniques—including lazy bean loading, removing unused auto‑configurations, classloader tweaks, thread‑pool tuning, logging reduction, health‑check disabling, SSD upgrades, Maven packaging fixes, and Arthas monitoring—that together can reduce Spring Boot startup from minutes to seconds, dramatically boosting developer productivity.

Performance Tuningspring-bootstartup optimization
0 likes · 7 min read
How to Slash Spring Boot Startup Time by 80%: 10 Proven Optimizations
Cognitive Technology Team
Cognitive Technology Team
Jul 6, 2025 · Backend Development

Why Spring WebClient Throws OutOfMemoryError and How to Fix It

Upgrading Spring Boot's RestTemplate to the NIO‑based WebClient improves concurrency and performance, but can trigger a java.lang.OutOfMemoryError: Direct buffer memory; this article explains the cause, diagnostic steps using yCrash, and how adjusting -XX:MaxDirectMemorySize resolves the issue.

Java NIOOutOfMemoryErrordiagnostics
0 likes · 10 min read
Why Spring WebClient Throws OutOfMemoryError and How to Fix It
Top Architect
Top Architect
Jul 5, 2025 · Backend Development

Master Distributed Task Scheduling with XXL‑Job: Step‑by‑Step Guide and Code Walkthrough

This article introduces the lightweight open‑source XXL‑Job framework, walks through server and executor setup, demonstrates three task creation methods, explains how to trigger and monitor jobs, and highlights the dynamic‑proxy and asynchronous design that enable high‑throughput distributed scheduling in Spring Boot applications.

Distributed SchedulingDynamic ProxyXXL-JOB
0 likes · 15 min read
Master Distributed Task Scheduling with XXL‑Job: Step‑by‑Step Guide and Code Walkthrough
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 5, 2025 · Artificial Intelligence

Building Multi-Agent Systems with Spring AI and Langgraph4j: A Hands‑On Guide

This article introduces multi‑agent architectures and the Agents Handoff pattern, then demonstrates a complete implementation using Spring Boot 3.4.2, Langgraph4j, and Spring AI, including code for a marketplace agent, a payment agent, configuration, testing, and suggestions for further improvement.

Artificial IntelligenceLanggraph4jMulti-Agent
0 likes · 10 min read
Building Multi-Agent Systems with Spring AI and Langgraph4j: A Hands‑On Guide
Su San Talks Tech
Su San Talks Tech
Jul 5, 2025 · Backend Development

Mastering Spring Web MVC Annotations: A Complete Guide

This article provides a comprehensive overview of Spring Web MVC and Spring Boot annotations—including @RequestMapping, its attribute set, shortcut mapping annotations, controller advice, dependency injection, bean scopes, conditional configuration, and related component stereotypes—illustrated with code snippets and diagrams for Java backend developers.

Java AnnotationsSpring MVCbackend-development
0 likes · 17 min read
Mastering Spring Web MVC Annotations: A Complete Guide
Java Architect Essentials
Java Architect Essentials
Jul 4, 2025 · Backend Development

Avoid Dependency Nightmares: Best Practices for Building Reusable Spring Boot Starters

The article shares real‑world experiences and step‑by‑step guidelines for creating robust, modular Spring Boot starters—especially for logging and monitoring—covering dependency conflict detection, strict dependency scopes, SPI design, configuration conventions, documentation standards to dramatically improve reuse and reduce integration headaches.

Custom Starterdependency managementlogging
0 likes · 11 min read
Avoid Dependency Nightmares: Best Practices for Building Reusable Spring Boot Starters
Architect
Architect
Jul 4, 2025 · Backend Development

Async Requests in Spring Boot: Callable, WebAsyncTask & DeferredResult

This article explains how Spring Boot supports asynchronous request processing, comparing pre‑Servlet 3.0 synchronous handling with post‑Servlet 3.0 async features, and demonstrates four implementation approaches—Callable, WebAsyncTask, DeferredResult, and thread‑pool configuration—while outlining when asynchronous requests improve throughput and how to manage their lifecycle.

AsynchronousCallableDeferredResult
0 likes · 10 min read
Async Requests in Spring Boot: Callable, WebAsyncTask & DeferredResult
Java Captain
Java Captain
Jul 4, 2025 · Backend Development

Master Spring Boot Configuration with Enums for Cleaner, Maintainable Code

This guide explains how to improve Spring Boot configuration management by mapping external properties to Java enums using @ConfigurationProperties, demonstrating a complete example with Maven dependencies, YAML settings, enum definitions, configuration classes, a controller, and a Thymeleaf view to achieve flexible and readable code.

ConfigurationPropertiesThymeleafenum
0 likes · 11 min read
Master Spring Boot Configuration with Enums for Cleaner, Maintainable Code
Java Captain
Java Captain
Jul 4, 2025 · Backend Development

How to Load External JARs into Spring Boot: Simple 2‑Step Solutions

This guide explains two straightforward steps to load external JAR files into the JVM and make Spring Boot scan them, covering three implementation options—extending the classpath, using Spring Boot’s loader.path parameter, and creating a custom classloader—along with configuration details, Maven settings, and runtime considerations.

classloaderjar-loadingjava
0 likes · 9 min read
How to Load External JARs into Spring Boot: Simple 2‑Step Solutions
Selected Java Interview Questions
Selected Java Interview Questions
Jul 4, 2025 · Backend Development

Integrating MinIO with Spring Boot: Full Guide to File Upload, Download, and Large‑File Handling

This article walks through the complete process of integrating MinIO into a Spring Boot project, covering why MinIO is chosen, environment setup, configuration, utility and controller implementation for simple and batch uploads, downloads, previews, large‑file multipart uploads, instant upload checks, and testing procedures.

File DownloadInstant UploadMinio
0 likes · 22 min read
Integrating MinIO with Spring Boot: Full Guide to File Upload, Download, and Large‑File Handling
Java Tech Enthusiast
Java Tech Enthusiast
Jul 4, 2025 · Backend Development

Mastering Large File Uploads: Spring Boot Chunked Upload Guide

Learn how to efficiently handle large file uploads in web applications by implementing a robust chunked upload solution with Spring Boot, covering the need for chunking, core principles, detailed server and Vue.js client code, performance optimizations, enterprise-level features, and best-practice recommendations.

Vue.jsbackend-developmentchunked upload
0 likes · 12 min read
Mastering Large File Uploads: Spring Boot Chunked Upload Guide
Java Captain
Java Captain
Jul 4, 2025 · Backend Development

Why Getting Spring Beans in Non‑Spring Classes Causes NullPointerExceptions

This article explains why retrieving Spring beans from classes not managed by Spring can cause NullPointerExceptions and failed autowiring, demonstrates two code examples—using a utility class and @Autowired in a plain class—and recommends registering such classes as Spring components to ensure proper dependency management.

Bean Retrievaldependency-injectionjava
0 likes · 5 min read
Why Getting Spring Beans in Non‑Spring Classes Causes NullPointerExceptions
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 4, 2025 · Backend Development

Master Distributed Transactions in Spring Boot 3 with Atomikos – Full Code Guide

This article walks through integrating Atomikos with Spring Boot 3 to implement JTA‑based distributed transactions, covering the concepts of Atomikos and JTA, detailed configuration of multiple data sources, domain and repository definitions, service implementation, and comprehensive test cases with expected outcomes.

AtomikosDistributed TransactionsJTA
0 likes · 14 min read
Master Distributed Transactions in Spring Boot 3 with Atomikos – Full Code Guide
Java Architect Essentials
Java Architect Essentials
Jul 3, 2025 · Backend Development

Tame Maven Dependency Chaos with Custom Spring Boot Starters

This article shares real‑world stories and step‑by‑step techniques for diagnosing Maven dependency conflicts, enforcing version control, and building reusable Spring Boot starters to streamline configuration, improve team efficiency, and prevent costly runtime failures.

Custom Starterbackend-developmentdependency management
0 likes · 7 min read
Tame Maven Dependency Chaos with Custom Spring Boot Starters
Architecture Digest
Architecture Digest
Jul 3, 2025 · Backend Development

How to Implement Efficient MyBatis Streaming Queries in Spring Boot

This article explains what streaming queries are, why MyBatis's Cursor requires an open database connection, and presents three practical solutions—using SqlSessionFactory, TransactionTemplate, or @Transactional—to correctly implement MyBatis streaming queries in Spring applications while avoiding common pitfalls.

CursorDatabase ConnectionStreaming Query
0 likes · 6 min read
How to Implement Efficient MyBatis Streaming Queries in Spring Boot
Java Tech Enthusiast
Java Tech Enthusiast
Jul 3, 2025 · Backend Development

Mastering Large File Uploads with Spring Boot: Chunked Upload Guide

This article explains why traditional single-file uploads fail for large files, outlines the benefits of chunked uploading, and provides a complete Spring Boot implementation—including core dependencies, controller logic, high‑performance merging, Vue front‑end code, enterprise‑level optimizations, and performance test results.

BackendPerformancechunked upload
0 likes · 11 min read
Mastering Large File Uploads with Spring Boot: Chunked Upload Guide
Code Ape Tech Column
Code Ape Tech Column
Jul 3, 2025 · Backend Development

How to Detect and Fix Memory Leaks in Spring Boot Applications

This guide explains the fundamentals of memory leaks in Java, outlines common causes in Spring Boot, and provides step‑by‑step techniques—including GC log analysis, JConsole, VisualVM, MAT, Actuator, custom endpoints, jstack, BTrace, and best‑practice recommendations—to identify, diagnose, and prevent memory leaks for stable long‑running services.

Heap DumpJVMmemory leak
0 likes · 18 min read
How to Detect and Fix Memory Leaks in Spring Boot Applications
Programmer Null's Self-Cultivation
Programmer Null's Self-Cultivation
Jul 2, 2025 · Cloud Native

What Makes Spring Cloud the Ultimate ‘Full‑Stack’ for Microservices?

This article provides a comprehensive overview of Spring Cloud, explaining its two generations (Netflix and Alibaba), versioning scheme, core components such as Eureka, Ribbon, Hystrix, Feign, Gateway, Config, Bus, Nacos, Sentinel and Seata, and compares the capabilities of the two implementations for building cloud‑native microservice systems.

Cloud NativeMicroservicesSpring Cloud
0 likes · 24 min read
What Makes Spring Cloud the Ultimate ‘Full‑Stack’ for Microservices?
Top Architect
Top Architect
Jul 2, 2025 · Backend Development

Quickly Bootstrap a Spring Boot Project and Dodge Version Compatibility Issues

This guide walks you through initializing a Spring Boot project, handling IDE setup frustrations, managing Spring Cloud and Kafka version compatibility, leveraging Maven for dependencies, implementing global exception handling, logging, CORS, and Swagger configurations, and recommends essential tools for efficient backend development.

Exception HandlingVersion Compatibilitybackend-development
0 likes · 10 min read
Quickly Bootstrap a Spring Boot Project and Dodge Version Compatibility Issues
Java Tech Enthusiast
Java Tech Enthusiast
Jul 2, 2025 · Backend Development

Why Your Java Projects Keep Failing and How to Fix Common Spring Boot Pitfalls

The article examines recurring Java backend problems such as duplicated configuration files, hard‑coded parameters, mixed logging practices, unchecked code releases, unsynchronized databases, and Maven dependency issues, then offers concrete solutions like externalized configuration, standardized logging, proper code review, and correct Maven pom settings.

configurationjavamaven
0 likes · 5 min read
Why Your Java Projects Keep Failing and How to Fix Common Spring Boot Pitfalls
Java Backend Technology
Java Backend Technology
Jul 2, 2025 · Backend Development

Generate Spring Boot CRUD Code Instantly with EasyCode Plugin

This tutorial walks you through installing the EasyCode IntelliJ plugin, creating a MySQL database, configuring IDEA’s database connection, setting up Maven dependencies and application.yml, generating entity, DAO, service, and controller code automatically, and finally running the Spring Boot project.

EasyCodeIntelliJ IDEAMySQL
0 likes · 6 min read
Generate Spring Boot CRUD Code Instantly with EasyCode Plugin
Lin is Dream
Lin is Dream
Jul 2, 2025 · Databases

Master Redis in Spring Boot: From RedisTemplate to Redisson Integration

This tutorial walks Java developers through using Redis in Spring Boot projects, covering the essential spring-boot-starter-data-redis dependency, RedisTemplate basics, the underlying RedisConnectionFactory design, custom connection configurations for single‑node and sentinel modes, and seamless integration of the Redisson client for advanced distributed features.

RedisTemplatejavaredis
0 likes · 10 min read
Master Redis in Spring Boot: From RedisTemplate to Redisson Integration
Java Architect Essentials
Java Architect Essentials
Jul 1, 2025 · Backend Development

Why Postman Fails and MockMvc Wins: Real‑World API Testing Secrets

This article recounts a midnight production outage caused by inadequate Postman tests, explains three hidden pitfalls of Postman, demonstrates how MockMvc provides precise, code‑level assertions and automated scenarios, and offers a step‑by‑step guide to boost API test automation from 30% to 90% coverage.

BackendMockMvcPostman
0 likes · 9 min read
Why Postman Fails and MockMvc Wins: Real‑World API Testing Secrets
Architect
Architect
Jul 1, 2025 · Operations

Mastering ELK: Build a Real‑Time Log Analysis Platform for Spring Boot & Nginx

This guide walks you through the fundamentals of the ELK stack—Elasticsearch, Logstash, and Kibana—explaining its architecture, installation on Ubuntu, configuration of Logstash shipper and indexer roles, integration with Spring Boot and Nginx logs, and how to run the components as background services using Supervisor.

ELKElasticsearchKibana
0 likes · 20 min read
Mastering ELK: Build a Real‑Time Log Analysis Platform for Spring Boot & Nginx
Architect's Guide
Architect's Guide
Jul 1, 2025 · Backend Development

Spring Boot API Validation, Global Exception Handling & Secure Versioning

This guide walks through building robust Spring Boot backend APIs by detailing request parameter validation with @Validator, implementing global exception handling, standardizing unified response structures, applying custom annotations for response control, managing API versioning via path and header strategies, and enhancing security with token authentication, timestamps, signatures, and HTTPS.

API SecurityAPI ValidationResponse Wrapping
0 likes · 24 min read
Spring Boot API Validation, Global Exception Handling & Secure Versioning
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jul 1, 2025 · Backend Development

Master Dynamic Expression Engines in Spring Boot 3: 7 Real‑World Examples

This article introduces dynamic expression parsing for enterprise Java applications, compares seven Spring Boot‑compatible expression engines (SpEL, MVEL, Aviator, JEP, OGNL, JEXL, QLExpress) across performance, security and syntax, and provides complete code samples, execution results and pros‑cons for each engine.

AviatorExpression EngineJEP
0 likes · 19 min read
Master Dynamic Expression Engines in Spring Boot 3: 7 Real‑World Examples
dbaplus Community
dbaplus Community
Jun 30, 2025 · Backend Development

How to Diagnose and Fix JVM GC Pause Issues in High‑Concurrency Microservices

This article walks through a real‑world production case, showing how to systematically detect, analyze, and resolve severe JVM garbage‑collection pauses that caused service timeouts, by examining CPU, memory, GC logs, adjusting collector settings, and aligning JVM threads with Kubernetes resource limits.

JVMKubernetesParallelGCThreads
0 likes · 15 min read
How to Diagnose and Fix JVM GC Pause Issues in High‑Concurrency Microservices
Architecture Digest
Architecture Digest
Jun 29, 2025 · Backend Development

Mastering Chunked File Uploads in Spring Boot: Boost Performance & Reliability

This article explains why traditional large‑file uploads fail, introduces the benefits of chunked uploading, and provides a complete Spring Boot implementation—including backend controllers, high‑performance merging, Vue front‑end code, enterprise‑level optimizations, performance benchmarks, and best‑practice recommendations—for building a robust, resumable file transfer solution.

Performance Optimizationchunked uploadfile transfer
0 likes · 12 min read
Mastering Chunked File Uploads in Spring Boot: Boost Performance & Reliability
Java Captain
Java Captain
Jun 28, 2025 · Backend Development

How to Build a Spring Boot Multi‑Module Project with Maven

Learn step‑by‑step how to create a Spring Boot multi‑module Maven project, from designing the parent and child module structure, configuring pom.xml files, writing simple application and controller code, to building and running the modules with Maven commands.

MicroservicesMulti‑modulemaven
0 likes · 7 min read
How to Build a Spring Boot Multi‑Module Project with Maven
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 24, 2025 · Backend Development

12 Powerful Ways to Retrieve Beans in Spring Boot 3 – A Practical Guide

This article presents twelve practical techniques for obtaining Spring beans—including @Autowired, @Resource, @Inject, constructor injection, ApplicationContext, BeanFactory, ObjectProvider, @Lookup, BeanFactoryUtils, BeanFactoryAnnotationUtils, custom utilities, and @Value with SpEL—complete with code examples and usage scenarios to help developers choose the most suitable approach.

Bean RetrievalCode Examplesdependency-injection
0 likes · 11 min read
12 Powerful Ways to Retrieve Beans in Spring Boot 3 – A Practical Guide
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 21, 2025 · Artificial Intelligence

Master AI Agent Workflows with Spring Boot 3: From Chains to Orchestrators

This article introduces the fundamentals of augmented large language model agents, explains six workflow patterns—including chain, parallel, routing, orchestrator‑workers, evaluator‑optimizer, and autonomous agents—and provides complete Spring Boot 3 code examples, configuration, and test results for each pattern.

BackendLLMjava
0 likes · 15 min read
Master AI Agent Workflows with Spring Boot 3: From Chains to Orchestrators
macrozheng
macrozheng
Jun 20, 2025 · Cloud Native

Unlock Nacos 3.0: New Architecture, Deployment Modes, and Embedded Integration

Version 3.0 of Nacos introduces a decoupled architecture with independent console deployment, multiple port configurations, three flexible deployment modes (merged, server, console), a modular bootstrap startup engine, and an embedded integration approach that simplifies microservice governance while enhancing security and performance.

BootstrapDeploymentNacos
0 likes · 8 min read
Unlock Nacos 3.0: New Architecture, Deployment Modes, and Embedded Integration
Java Architecture Diary
Java Architecture Diary
Jun 20, 2025 · Backend Development

What’s New in Spring Boot 3.5.3? Key Fixes, Features, and Upgrade Guide

Spring Boot 3.5.3, the first patch of the 3.5 series, introduces critical fixes for a severe issue in 3.5.1, upgrades Tomcat to 10.1.42 with multipart limits, adds ConfigData options support, resolves numerous performance, configuration, actuator, and binding bugs, improves documentation, and updates a wide range of core, database, server, and monitoring dependencies, making the upgrade strongly recommended.

Release NotesSpring FrameworkTomcat
0 likes · 8 min read
What’s New in Spring Boot 3.5.3? Key Fixes, Features, and Upgrade Guide
Su San Talks Tech
Su San Talks Tech
Jun 20, 2025 · Backend Development

Why Environment Setup Is the Real Pain in Spring Boot Projects (And How to Fix It)

This article walks through the common frustrations of IDE and environment setup for Spring Boot projects, explains version compatibility between Spring Cloud, Spring Boot, and Kafka, demonstrates how Maven and auto‑configuration simplify dependencies, and provides ready‑to‑use code snippets and useful tooling recommendations for backend developers.

IDE setupKafkamaven
0 likes · 11 min read
Why Environment Setup Is the Real Pain in Spring Boot Projects (And How to Fix It)
Architecture Digest
Architecture Digest
Jun 19, 2025 · Backend Development

Supercharge Spring Boot HTTP Calls with Retrofit: A Complete Guide

This article introduces retrofit‑spring‑boot‑starter, a lightweight HTTP client for Spring Boot that simplifies request creation and offers powerful features such as custom OkHttpClient injection, annotation‑based interceptors, connection‑pool management, logging, retry, error decoding, circuit‑breaker support, service discovery, and flexible call adapters and converters, all with concise configuration examples.

HTTP clientInterceptorRetrofit
0 likes · 21 min read
Supercharge Spring Boot HTTP Calls with Retrofit: A Complete Guide
Lin is Dream
Lin is Dream
Jun 19, 2025 · Backend Development

Master RocketMQ with Spring Boot: Complete Guide to Messaging APIs

This tutorial walks through integrating Alibaba's RocketMQ into a Spring Boot application, covering Maven dependencies, producer and consumer configurations, and detailed examples of synchronous, asynchronous, one‑way, delayed, ordered, transactional, request‑response, batch, and pull messaging APIs, along with best‑practice recommendations.

Message QueueMessaging APIRocketMQ
0 likes · 21 min read
Master RocketMQ with Spring Boot: Complete Guide to Messaging APIs
Architect's Must-Have
Architect's Must-Have
Jun 18, 2025 · Backend Development

How to Dynamically Load External JARs into Spring Boot at Runtime

This guide explains step‑by‑step how to load external JAR files into the JVM, configure Spring Boot to recognize them, and choose among four practical solutions—including classpath expansion, Spring Boot loader.path, custom class loaders, and JVM boot classpath tweaks—while highlighting their pros, cons, and required Maven settings.

Custom ClassLoaderJVMclass loading
0 likes · 10 min read
How to Dynamically Load External JARs into Spring Boot at Runtime
vivo Internet Technology
vivo Internet Technology
Jun 18, 2025 · Backend Development

Cutting Spring Boot Startup Time by 50%: From 280 s to 159 s

This article systematically analyzes a Spring Boot project's 280‑second startup, identifies bottlenecks such as bean initialization and sharding data source loading, and applies listener‑based timing, bean‑post‑processor profiling, and asynchronous initialization to reduce launch time to 159 seconds, improving developer efficiency.

BackendPerformanceasynchronous-initialization
0 likes · 13 min read
Cutting Spring Boot Startup Time by 50%: From 280 s to 159 s
DeWu Technology
DeWu Technology
Jun 18, 2025 · Backend Development

Solving Distributed Transaction Challenges with a Supply‑Chain Consistency Framework

This article explores a supply‑chain consistency framework that tackles distributed transaction challenges by using eventual consistency, detailing its theoretical models, architecture, core components, async execution, retry mechanisms, and a practical code example for Spring‑Boot applications.

Distributed Systemsannotationeventual consistency
0 likes · 10 min read
Solving Distributed Transaction Challenges with a Supply‑Chain Consistency Framework
Top Architect
Top Architect
Jun 18, 2025 · Backend Development

Unlock Spring Boot’s Hidden Power: Master Built‑in Features for Faster Development

This article explores Spring Boot’s powerful built‑in utilities—including request logging, content caching, once‑per‑request filters, AOP helpers, starter auto‑configuration, flexible property binding, asynchronous execution, Actuator monitoring, and SpEL expressions—showing how they streamline development, improve maintainability, and boost production‑grade reliability.

Asyncaopbackend-development
0 likes · 15 min read
Unlock Spring Boot’s Hidden Power: Master Built‑in Features for Faster Development
Cognitive Technology Team
Cognitive Technology Team
Jun 18, 2025 · Backend Development

How Spring Boot’s Fat Jar Enables One‑Click Java Deployment

Spring Boot’s Fat Jar packages all application code, dependencies, and an embedded server into a single executable JAR, breaking the parent‑delegation model with a custom class loader and protocol handler, enabling simple ‘java -jar’ execution, streamlined deployment, and benefits for microservices and Docker layering.

Class LoaderFat JarMicroservices
0 likes · 10 min read
How Spring Boot’s Fat Jar Enables One‑Click Java Deployment
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 18, 2025 · Backend Development

Master Polymorphic Deserialization in Spring Boot 3 with Jackson

This tutorial shows how to use Jackson's polymorphic deserialization in Spring Boot 3 to handle variable JSON request bodies by defining a common Order interface, concrete implementations, and a REST controller that routes calculations based on the order type, eliminating redundant endpoints.

BackendJacksonPolymorphic Deserialization
0 likes · 6 min read
Master Polymorphic Deserialization in Spring Boot 3 with Jackson
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 17, 2025 · Backend Development

Master Spring Boot Data Binding: Constructor & Property Binding with Custom Editors

This article explains how Spring Boot 3.4.2 handles data binding using constructors and property setters, demonstrates practical examples with code, shows how to resolve binding errors with BindingResult, and guides you through creating and registering custom PropertyEditors for complex type conversion.

Constructor BindingCustom PropertyEditorProperty Binding
0 likes · 11 min read
Master Spring Boot Data Binding: Constructor & Property Binding with Custom Editors
Java Captain
Java Captain
Jun 16, 2025 · Backend Development

Master MyBatis-Plus with Spring Boot: CRUD, Pagination & Multi-DataSource Guide

A comprehensive step‑by‑step tutorial shows how to integrate MyBatis‑Plus into a Spring Boot project, covering dependencies, configuration, entity annotations, CRUD operations, pagination, logical deletion, enum handling, automatic field filling, multi‑datasource support, and testing.

CRUDMulti-DataSourceORM
0 likes · 13 min read
Master MyBatis-Plus with Spring Boot: CRUD, Pagination & Multi-DataSource Guide
macrozheng
macrozheng
Jun 16, 2025 · Backend Development

Hot‑Deploying User‑Defined Interfaces in Spring Boot: Reflection vs Annotation

This article demonstrates how to design a simple Calculator interface, provide two implementation strategies (annotation‑managed and reflection‑based), and achieve hot deployment of user‑supplied JARs in a Spring Boot application, including loading, registering, and removing beans dynamically.

Hot DeploymentReflectiondependency-injection
0 likes · 9 min read
Hot‑Deploying User‑Defined Interfaces in Spring Boot: Reflection vs Annotation
Java Backend Technology
Java Backend Technology
Jun 16, 2025 · Backend Development

14 Essential Java Code Optimization Tips Every Backend Developer Should Know

Discover 14 practical Java code optimization techniques—from using configuration properties and @RequiredArgsConstructor to modularizing methods, avoiding null returns, leveraging IDE suggestions, and applying design patterns—each illustrated with clear examples and snippets to help backend developers write cleaner, more maintainable code.

Code OptimizationDesign Patternsbest practices
0 likes · 8 min read
14 Essential Java Code Optimization Tips Every Backend Developer Should Know
Java Architecture Diary
Java Architecture Diary
Jun 16, 2025 · Information Security

Why Spring Framework’s RFD Bug Lets Attackers Download Malicious Files—and How to Patch It

Spring’s latest security advisory reveals a critical Reflection File Download (RFD) vulnerability affecting multiple Spring Framework versions, allowing crafted requests to force users to download malicious files, and provides detailed conditions, unaffected scenarios, version impact, and recommended remediation steps.

RFD vulnerabilitySecurity PatchSpring Framework
0 likes · 5 min read
Why Spring Framework’s RFD Bug Lets Attackers Download Malicious Files—and How to Patch It
Architect's Guide
Architect's Guide
Jun 15, 2025 · Backend Development

Mastering Read‑Write Splitting in Spring Boot: A Complete Guide

This article explains how to implement database read‑write separation in a Spring Boot application by configuring master and slave data sources, creating a routing datasource, managing thread‑local context, and using an AOP‑based annotation to switch between read and write operations.

DataSource Routingaopdatabase
0 likes · 10 min read
Mastering Read‑Write Splitting in Spring Boot: A Complete Guide
macrozheng
macrozheng
Jun 13, 2025 · Backend Development

How to Build a Real‑Time Chat with Spring Boot WebSocket: Step‑by‑Step Guide

This article explains how to integrate WebSocket into a Spring Boot project to create a lightweight instant‑messaging system, covering dependency setup, configuration classes, core server implementation, required modules, common deployment issues, and practical solutions with complete code examples.

Distributed SystemsInstant Messagingbackend-development
0 likes · 14 min read
How to Build a Real‑Time Chat with Spring Boot WebSocket: Step‑by‑Step Guide
Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Jun 13, 2025 · Backend Development

Turn a Spring Boot CRUD App into an AI‑Powered Service with Model Context Protocol

This guide shows how to integrate Spring Boot with the Model Context Protocol (MCP) to let large language models interact with existing services via natural language, covering entity definitions, Maven dependencies, configuration, tool annotations, and testing to create an AI‑enabled book management API.

AI integrationBackendMCP
0 likes · 18 min read
Turn a Spring Boot CRUD App into an AI‑Powered Service with Model Context Protocol
Architect's Guide
Architect's Guide
Jun 12, 2025 · Backend Development

How to Build QR Code Login with WebSocket in Spring Boot

This tutorial walks through designing a QR‑code login flow, defining a token table, outlining client and server roles, implementing two REST endpoints, configuring Spring Boot WebSocket support, and handling real‑time login notifications with Java and JavaScript code examples.

JavaScriptQR Code LoginREST API
0 likes · 13 min read
How to Build QR Code Login with WebSocket in Spring Boot
Java Architect Essentials
Java Architect Essentials
Jun 12, 2025 · Backend Development

Simplify Spring Boot Extensions with Concept Plugin 2: A Plug‑in Guide

Concept Plugin 2 introduces a lightweight, annotation‑driven plug‑in system for Spring Boot that separates core business logic from device integration code, enabling independent testing, dynamic loading, and easy configuration through a management UI, while supporting various injection patterns, nested dependencies, and Spring features.

dependency-injectionjavamodular design
0 likes · 10 min read
Simplify Spring Boot Extensions with Concept Plugin 2: A Plug‑in Guide
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 12, 2025 · Backend Development

Master Spring Boot 3 Interception: Filters, Security, Interceptors & AOP

This article explains the various interception mechanisms in Spring Boot 3—including Filters, Spring Security filters, MVC Interceptors, AOP, ControllerAdvice, Request/ResponseBodyAdvice, and REST Clients—provides execution flow diagrams, detailed code examples, and practical usage tips for building robust backend applications.

BackendFiltersinterceptors
0 likes · 14 min read
Master Spring Boot 3 Interception: Filters, Security, Interceptors & AOP
Zhuanzhuan Tech
Zhuanzhuan Tech
Jun 11, 2025 · Backend Development

Transform JSON Seamlessly with Jolt: From Hard‑Coded Logic to Configurable Rules

This article introduces Jolt, an open‑source Java library for JSON‑to‑JSON transformation, explains its advantages over traditional hard‑coded conversion, demonstrates core operations and custom extensions with code examples, shows how to integrate it into Spring Boot, and outlines future plans for a visual drag‑and‑drop configuration tool.

Configuration ManagementData MappingJSON transformation
0 likes · 17 min read
Transform JSON Seamlessly with Jolt: From Hard‑Coded Logic to Configurable Rules
Architect's Tech Stack
Architect's Tech Stack
Jun 11, 2025 · Backend Development

Master Dynamic Data Permissions in Java with easy-data-scope

This tutorial walks you through building a Spring Boot project that uses the easy-data-scope library to inject dynamic SQL for fine‑grained data permissions, covering database setup, Maven dependencies, core annotations, custom rule implementation, and practical query examples.

Data Permissionbackend-developmenteasy-data-scope
0 likes · 11 min read
Master Dynamic Data Permissions in Java with easy-data-scope
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 10, 2025 · Backend Development

Master Spring Data JPA: 131 Real‑World Spring Boot 3 Cases & Best Practices

This article presents a comprehensive guide to Spring Data JPA in Spring Boot 3, covering 131 practical cases, core repository interfaces, Specification and Criteria Builder techniques, and dozens of performance‑optimizing tips such as lazy loading, caching, batch processing, transaction management, projections, and stream queries.

JpaRepositorybackend-developmentjava
0 likes · 15 min read
Master Spring Data JPA: 131 Real‑World Spring Boot 3 Cases & Best Practices