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The article explains how Spring Boot’s @Sql annotation lets you declaratively run SQL scripts before or after test methods to set up or clean up test data, covering placement, default behavior, configuration options, execution timing, transaction handling, and common pitfalls.
This guide explains multiple ways to dynamically register beans in Spring Boot—including @ConditionalOnProperty, ImportBeanDefinitionRegistrar, the new Spring 7 BeanRegistrar API, and runtime registration via @PostConstruct—while outlining configuration details, lifecycle considerations, and best‑practice recommendations for flexible, condition‑driven bean management.
This article explains how Spring Batch’s core concepts, chunk processing, metadata management, virtual‑thread integration, partitioning, and multi‑threaded step configurations can dramatically increase throughput and resource efficiency when handling large, I/O‑intensive data sets.
This guide explains how to integrate Alibaba's EasyExcel library into a Spring Boot project to perform low‑memory, high‑performance Excel import and export using annotation‑based entity mapping, listener mode, dynamic headers, async processing, validation, templates, and encryption.
Spring Boot simplifies transaction management via PlatformTransactionManager and AOP, offering declarative and programmatic approaches, default rollback on runtime exceptions, customizable rollback rules, propagation behaviors, manual rollback techniques, multithreaded transaction handling, and solutions to common pitfalls such as swallowed exceptions and self-invocation issues.
This article introduces four of Spring Boot’s expression engines—Groovy, MVEL, JEXL, and JSP EL—showing how to add their Maven dependencies, run concrete code examples, and provides practical guidance on selecting the right engine based on performance, feature richness, and integration ease.
This article explores Java Stream's advanced capabilities, including multi‑level grouping and partitioning with Collectors, parallel stream performance tips, creation of infinite streams, stream concatenation and transformation, short‑circuit operations, primitive stream optimizations, and how to build custom collectors and streams, all illustrated with concrete code examples and step‑by‑step demonstrations.
