This guide explains how Spring Boot starters simplify dependency management, how the Spring Boot starter parent centralizes version control, and how to use the built‑in Maven plugin and DevTools for automatic restarts, including step‑by‑step Maven and IntelliJ configurations with code examples.
This tutorial demonstrates how to validate incoming JSON payloads in Spring Boot 3 by generating JSON Schemas, creating a custom filter that checks request bodies before they reach business logic, and registering the filter, complete with code examples and test screenshots.
Scaffolding tools—ranging from backend frameworks like Spring Boot, Maven, and Dropwizard to frontend solutions such as Vue CLI—streamline software development by promoting reuse, adhering to DRY and Open‑Closed principles, and preventing developers from reinventing the wheel, ultimately boosting productivity and maintainability.
This tutorial walks you through adding Spring Security to a Spring Boot project, from adding the starter dependency and creating a simple controller to observing the default login page, understanding the auto‑generated password mechanism, and customizing usernames and passwords for production use.
This article explains how to create a Spring Boot starter that lets you toggle between the native @Scheduled scheduler and XXL‑JOB at runtime via a configuration property, automatically scanning annotated methods, disabling Spring's tasks, and registering them as XXL‑JOB jobs with proper logging.
Learn how to perform comprehensive Excel CRUD operations in Spring Boot 3 using the Fillo library, covering environment setup, Maven dependency, SELECT, INSERT, UPDATE, DELETE, fuzzy search, distinct queries, and row/column configuration, complete with code snippets and result screenshots.
This article introduces the lightweight Jackson‑jr library for Java, demonstrates how to create JSON objects and arrays, use the Composer API, customize serialization with annotations, and presents JMH performance comparisons showing Jackson‑jr’s superior speed over Jackson‑databind and Gson in Spring Boot 3.4.2 environments.
Spring Boot 4, built on Spring Framework 7, introduces elegant API versioning, streamlined Bean registration, null‑safety annotations, simplified HTTP proxy creation, upgraded SPEL, GraalVM native support, Jackson 3.x, newer Servlet/WebSocket versions, and numerous other enhancements, offering developers more powerful and convenient tools.
This article explores the growing importance of retry mechanisms in distributed Spring Boot 3 applications, presenting five practical retry components—Spring‑Retry, Resilience4j‑Retry, Fast‑Retry, Easy‑Retry, and Guava‑Retrying—along with custom annotation examples, configuration details, code snippets, and execution results.
This comprehensive guide walks Java beginners through installing IDEA and JDK, explains Spring Boot 3 fundamentals, demonstrates project creation with Spring Initializr, shows Maven standard layout, configures a simple Hello World REST controller, and covers essential topics such as POM files, GAV coordinates, Maven Wrapper, static resources, templates and unit testing.
This comprehensive tutorial explains database sharding concepts, types, strategies, and implementation in Spring Boot using ShardingSphere, covering configuration, entity and repository code, service and controller layers, integration with pagination, Swagger, ActiveMQ, security, batch processing, FreeMarker, WebSockets, AOP, performance testing, FAQs, real‑world cases, and future trends.
This article provides a step‑by‑step tutorial on configuring Spring Boot to work with MinIO, covering YAML settings, property binding, utility classes for file upload/download, controller and service implementations, key technical points, and best‑practice recommendations for scalable backend file storage.
This article presents a comprehensive, high‑throughput OCR invoice processing solution that combines distributed system design, Spring Boot asynchronous execution, Tesseract deep optimization, multi‑engine fusion, structured data extraction, performance tuning, Kubernetes deployment, and security compliance.
This article explains why traditional if‑else logic hampers complex business rule maintenance and demonstrates how to create a flexible Spring Boot 3 rule engine using strategy and registry patterns, complete with interfaces, implementations, a registry, an engine, and a REST controller for testing.
This comprehensive guide explains how to design high‑quality Spring Boot controller layers, covering architecture planning, RESTful API conventions, parameter validation, unified response structures, exception handling, logging, security, testing, asynchronous processing, and performance optimization with practical code examples and clear best‑practice recommendations.
This article presents a comprehensive guide to optimizing API performance in Spring Boot projects, covering batch processing, asynchronous execution, caching, pre‑processing, pooling, parallelization, indexing, transaction management, code refactoring, pagination, SQL tuning, and lock granularity, complete with code examples and diagrams.
This article walks through Docker’s essential role in modern cloud-native architectures, explaining why containerization solves environment inconsistencies, and provides a step‑by‑step guide—including writing a Dockerfile, building images, running containers, and accessing services—for deploying Spring Boot microservices efficiently.
This article explains why optimistic locking can fail under high concurrency, demonstrates how to apply database‑level pessimistic locks with Spring Data JPA, configure lock timeouts for MySQL and Oracle, and gracefully handle lock exceptions using Spring Retry.
This article presents a comprehensive, step‑by‑step analysis of a high‑throughput, asynchronous OCR pipeline built with Spring Boot and Tesseract, covering system architecture, thread‑pool tuning, custom invoice‑specific model training, multi‑engine fusion, structured data extraction, performance optimizations, GPU acceleration, Kubernetes deployment, monitoring, security compliance, chaos testing, and future evolution plans.
This article presents ten complete solutions for dynamically switching implementations of a Spring Boot interface—ranging from simple @Profile usage to advanced AOP and custom annotation techniques—complete with code examples, configuration snippets, and a free PDF ebook of 155 practical cases.
This article explores the drawbacks of static YAML files in production, compares traditional configuration centers, and presents a database‑driven approach that offers zero extra infrastructure, full control, and simplified architecture, while detailing layered bootstrapping, entity design, dynamic loading, encryption, versioning, and monitoring.
This article introduces the FastExcel library as a high‑performance alternative to Apache POI for handling massive Excel files in Spring Boot 3, presents benchmark results, and provides detailed code examples for writing, reading, and uploading large spreadsheets with multithreading and memory‑efficient settings.
This article walks through creating a self‑hosted object storage solution by configuring Nginx for static file serving, implementing secure downloads with X‑Accel‑Redirect and signed URLs, and deploying MinIO as an S3‑compatible service, complete with Spring Boot integration and sample code.
This article explains why proper date formatting matters in Spring Boot applications, compares the default Jackson behavior, and presents five concrete approaches—including global configuration, @JsonFormat, custom ObjectMapper, @JsonComponent, and @JsonSerialize—detailing their implementations, advantages, and drawbacks.
This article walks through building a distributed image captcha login for Spring Boot applications, contrasting traditional session‑based approaches with a front‑end/back‑end separated design that stores captcha codes in Redis, generates images via Kaptcha, and returns tokens to the client.
This article demonstrates how to decouple business logic from validation in Spring Boot 3 by creating a custom @BusinessValidation annotation, defining rule interfaces, implementing concrete validators, and using an AOP aspect to execute them with configurable fast‑fail and exception handling, complete with code examples and testing.
This guide walks through a complete Logback setup for Spring Boot, covering multi‑environment profiles, runtime log‑level changes via Actuator, async appender tuning, structured JSON output, sensitive‑data masking, MDC‑based distributed tracing, exception stack filtering, performance metrics and best‑practice recommendations.
This article explains Spring Boot’s bean lifecycle callbacks, covering InitializingBean and DisposableBean interfaces, @PostConstruct and @PreDestroy annotations, initMethod and destroyMethod configurations, as well as alternative approaches like SmartInitializingSingleton, ContextRefreshedEvent, and AutoCloseable, with code examples and execution order details.
This article demonstrates how to create a complete real‑time message broadcasting system using Spring Boot 3's reactive Server‑Sent Events (SSE) and WebFlux, covering the core Sink component, backend implementation, and a simple front‑end page to display live updates.
This article introduces the open‑source admin platform SmartAdmin, outlines its high‑quality code, security features, technology stack, and provides a step‑by‑step guide to set up the development environment and run the backend and frontend components.
This tutorial shows how to use the x‑file‑storage library to unify file operations across multiple storage platforms such as Amazon S3, MinIO, and RustFS in a Spring Boot application, providing step‑by‑step Docker setup, Maven configuration, YAML settings, and controller code.
This article walks through the JoyAgent‑JDGenie open‑source AI agent framework, detailing its multi‑agent architecture, backend and frontend components, deployment steps, configuration files, and the comprehensive prompt templates that drive planning, execution, and ReAct‑style reasoning.
This article walks through eight practical Spring Boot 3 caching techniques—including @Cacheable, @CacheEvict, custom key generators, multi‑level caches, TTL, conditional caching, and async refresh—providing code snippets and diagrams to help developers boost application performance.
This article introduces a continuously updated collection of 151 Spring Boot 3 practical examples, covering built‑in retry mechanisms, concurrency limits, and automatic HTTP client registration, complete with configuration snippets, code samples, and visual illustrations to help developers implement resilient backend services.
This article reveals the hidden default configurations of Spring Boot—such as Tomcat connection limits, HikariCP pool sizes, Jackson timezone handling, logging, caching, file upload limits, async thread pools, static resource caching, and transaction timeouts—and provides practical YAML adjustments to prevent performance bottlenecks and production failures.
FlowLong is a domestically developed, high‑performance workflow engine that uses JSON‑based process models and a visual designer to simplify complex approval scenarios, integrates seamlessly with Spring Boot and Mybatis‑Plus, provides extensive BPMN features, and includes detailed installation, architecture, and database schema documentation.
This article introduces MyBatis-Flex, a lightweight yet powerful MyBatis enhancement framework, outlines its key characteristics, compares it with MyBatis-Plus and Fluent-MyBatis, presents performance benchmarks, lists supported databases, and provides a step‑by‑step quick‑start guide for Spring Boot integration.
This article explains how to integrate Domain‑Driven Design's four‑layer architecture with microservice SDKs, outlines the structure and purpose of each layer, and introduces the D3boot framework and its modular components for building scalable backend systems efficiently.
This article demonstrates how to simplify and accelerate Excel export in Spring Boot 3 by using Alibaba's EasyExcel library together with a custom @ExportExcel annotation, a dedicated return‑value handler, and example controller code for static, dynamic, and template‑based exports.
This article provides a comprehensive guide to optimizing Spring Boot applications, covering application‑level tweaks, JVM tuning, database connection and query improvements, caching strategies, asynchronous and reactive programming, as well as monitoring and diagnostics, all illustrated with practical code examples.
This article walks through the end‑to‑end design, configuration, and implementation of splitting massive loan and repayment tables into 50 sharded MySQL tables using ShardingSphere, Spring Boot, and a custom suffix algorithm, while covering data migration, DBA coordination, dynamic switches, and scheduled consistency checks.
This article walks through nine essential Spring Boot built‑in capabilities—including request logging, content caching, filter execution control, AOP utilities, starter auto‑configuration, flexible property binding, async/scheduled tasks, Actuator monitoring, and SpEL expressions—showing how they boost backend development productivity without extra dependencies.
This article introduces JD's open‑source general‑agent project JoyAgent‑JDGenie, outlines its multi‑agent architecture and key features, and provides a step‑by‑step guide for configuring the required macOS environment, including frontend, backend, and Python services, to get the system up and running.
This article introduces OKHttpUtil, a lightweight Java HTTP client wrapper, outlines its key features, provides Maven setup and code examples for GET, POST, file upload/download, demonstrates fluent HttpRequest usage, shows Spring Boot integration, and explains how to quickly encapsulate external APIs such as eBay.
The article explains how Maven's default resource filtering corrupts binary .p12 certificates during packaging, causing Spring Boot startup failures, and provides a step‑by‑step solution using dual resource configurations and best practices for handling binary files in Java backend projects.
Spring Boot offers a suite of built‑in tools—from request logging and content caching to AOP utilities, starter dependencies, auto‑configuration, async scheduling, Actuator monitoring, and SpEL expressions—that streamline development, improve maintainability, and boost production‑grade performance for backend applications.
This guide walks through creating a Spring Boot 3 application that loads web pages into a vector database using Spring AI, configures AI models and embeddings, and exposes REST endpoints for storing documents and answering queries with retrieval‑augmented generation.
Explore the Spring Boot 3 lifecycle mechanisms, including the core Lifecycle and SmartLifecycle interfaces, with detailed code samples that demonstrate bean start/stop control, phase ordering, shutdown timeouts, and scheduled task management, enabling developers to fine‑tune application behavior during startup and shutdown.
This article explains how to design and implement a high‑availability, extensible large‑file upload API using Spring Boot, MinIO object storage, MySQL, Redis and CDN acceleration, covering chunked upload, resumable transfers, database schema, core endpoints, and performance optimizations.
This article demonstrates how to implement flexible, decoupled data permission control in Spring Boot 3 by defining a @DataPermission annotation, creating strategy classes for different scopes, wiring them through an AOP aspect, and integrating the solution with JPA entities, MyBatis mappers, and comprehensive test cases.
This guide explains how to integrate Alibaba Druid as a Java database connection pool, add Maven dependencies, configure core properties, enable SQL and slow‑SQL monitoring, set up WebStatFilter and Spring AOP monitoring, remove the built‑in advertisement, and retrieve monitoring data via DruidStatManagerFacade.
This article presents nine practical methods for loading files from the resources directory in a Spring Boot project, covering ClassLoader, Class, Spring ResourceLoader, ResourceUtils, ApplicationContext, ServletContext, Java IO, NIO, and ClassPathResource approaches.
This tutorial introduces the magic‑api Java framework, shows how to integrate it with Spring Boot, configure data sources, create the necessary MySQL tables, and implement full CRUD operations, parameter validation, result transformation, transaction handling, and Swagger documentation using concise scripts.
Learn how to build a secure authentication system in Spring Boot 3 that restricts each user to a single active session, stores tokens in Redis, and implements automatic JWT token refresh, with detailed code examples and step‑by‑step explanations.
This article demonstrates how Spring Boot 3.2.5 leverages JDK 21 virtual threads to improve asynchronous request handling, comparing platform‑thread and virtual‑thread performance with JMeter, exploring thread‑pool configurations, database access tests, and providing practical code examples and tuning tips.
This tutorial walks through implementing unified user login verification, request interception, global exception handling, and a consistent response format in Spring Boot using AOP, HandlerInterceptor, @ControllerAdvice, and ResponseBodyAdvice, complete with code examples and architectural explanations.
This tutorial demonstrates how to use Spring Batch in Spring Boot 3 to read Excel files with PoiItemReader, map rows to Java objects, process and write data, and optimize memory usage by switching to StreamingXlsxItemReader for large datasets, complete with full code examples and configuration details.
This guide walks you through configuring Spring Boot 3 with Spring Security OAuth2 Authorization Server to enable OpenID Connect, covering bean setup, client registration, token retrieval, user info customization, and accessing the OpenID configuration endpoint, complete with code examples and essential notes.
This article explains why static fields injected with @Autowired in Spring can become null, causing NPEs in production, and presents six practical solutions—including removing static fields, using @PostConstruct, static setters, ApplicationContext, singleton patterns, and @Lazy loading—to ensure reliable static dependency injection.
This article introduces ten practical Spring Boot 3 starter libraries—ShedLock, p6spy, Logbook, Jasypt, Bucket4j, gRPC, Retrofit, MapStruct‑Plus, Redisson, and Resilience4j—detailing their purpose, Maven coordinates, configuration snippets, core usage code, and links to official documentation, helping developers quickly enhance performance, security, and reliability in backend projects.
This article demystifies Spring Boot's auto‑configuration by breaking it into four layers—annotation composition, loading engine, conditional assembly, and property binding—providing clear explanations, code examples, and common pitfalls to help developers ace interview questions and master backend development.
This guide demonstrates how to configure Tencent Cloud COS for both simple and multipart large‑file uploads in a front‑end/back‑end separated architecture, using Vue2 on the client side and Spring Boot with YML configuration on the server, covering bucket setup, security, CORS, concurrency, and resumable upload techniques.
An in‑depth MySQL study compares auto‑increment, UUID, and random Snowflake keys by building three identical tables, running insert‑performance tests with Spring Boot/JdbcTemplate, and analyzing index structures, revealing why auto‑increment keys outperform UUIDs despite the latter’s uniqueness.
This article presents seven practical Spring Boot performance tuning techniques—including asynchronous execution, Tomcat connection tuning, component scanning, switching to Undertow, BufferedWriter usage, DeferredResult handling, and AsyncHandlerInterceptor interception—each illustrated with concise Java code examples to help developers boost application speed and scalability.
Learn how to set up Graylog for centralized log aggregation using Docker‑Compose, configure its inputs, and seamlessly integrate it with a Spring Boot application via Logback‑GELF, including necessary code snippets, configuration files, and query examples for efficient log searching.
This article presents a comprehensive Spring Boot 3 tutorial that integrates Apache Camel, explains the ProducerTemplate API, demonstrates route definitions, shows code examples for sending messages, file writing, bean processing, and AI chat integration, and includes test result screenshots.
This article explains why cloud‑native microservices are beneficial, defines their key characteristics, and provides a detailed, side‑by‑side comparison of MicroProfile and Spring frameworks—including REST APIs, dependency injection, configuration, fault tolerance, security, health checks, metrics, and tracing—along with concrete code examples and starter resources.
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.
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.
This article explains how Spring Boot handles asynchronous HTTP requests using Callable, WebAsyncTask, and DeferredResult, compares their processing flows, shows how to configure a custom thread pool, and outlines when asynchronous handling improves throughput.
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.
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.
This article explains why running only one Spring Boot instance per server is essential for stability and data integrity, and presents four practical techniques—file locks, FileChannel locks, port binding, and IPC sockets—complete with code samples to prevent duplicate startups.
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.
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.
This guide explains why log aggregation is needed in micro‑service environments, shows how to set up Graylog using Docker‑Compose, configure its inputs, and integrate it with a Spring Boot application via Logback‑GELF, then demonstrates basic log search queries.
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.
This article explains Spring Boot's configuration source hierarchy, showing how external files override internal ones, command‑line arguments take precedence, and how to manage multi‑environment profiles, validation tools, and best‑practice scenarios for reliable deployments.
This article walks through the fundamentals of OAuth2.0, explains its roles and grant types, and provides a complete Spring Boot implementation of an authorization server, resource server, and test controller with code snippets and sample requests.
MyBatis-Flex is a lightweight, high‑performance MyBatis enhancement that offers flexible CRUD, powerful query wrappers, extensive database support, and speed improvements of up to ten times over MyBatis‑Plus, with a step‑by‑step Spring Boot integration guide.
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.
This article shows how to replace static, error‑prone alert thresholds with dynamic baselines, root‑cause analysis chains, and AI‑driven predictions in a Spring Boot‑based monitoring stack, dramatically cutting false alarms and enabling proactive fault detection.
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.
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.
This article explains how Spring Boot leverages Servlet 3.0 asynchronous processing with four approaches—AsyncContext, Callable, WebAsyncTask, and DeferredResult—detailing their implementation, thread‑pool configuration, and when async endpoints truly boost throughput.
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.
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.
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.
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.
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.
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.
This article explains how to dynamically load JAR plugins in a Spring Boot application using URLClassLoader, share the class loader with the main context, and register plugin classes as Spring beans both at startup and at runtime, enabling seamless extension without server restarts.
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.
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.
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.
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.
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.
This article categorizes Spring Boot utility classes into built‑in and third‑party groups, explains their purposes, and provides practical code examples for each, helping developers streamline code, improve efficiency, and avoid reinventing common functionality.
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.
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.
