Spring Config Import. Без Магии
Всем привет! Меня зовут Дмитрий Мазуров, я контрибьютор проекта Axelix . Это open-source продукт, который помогает находить типичные проблемы и неэф…
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Retry policy на практике: подводные камни внедрения
Что делать, если произошла ошибка? Житейская мудрость говорит, что можно попробовать еще раз. В контексте разработки ПО существует известный и…
A Kafka Streams topology starts in a sandbox, not on your cluster
Somebody owns the Kafka cluster you need, and it is not you. You have a topology in mind: read orders , keep the big ones, write them somewhere. You…
Request lifecycle: HandlerMapping HandlerAdapter resolvers
🧠 The big idea in one line Spring finds the handler, prepares its arguments, calls it, and handles the result. Why this exists — an HTTP request con…
🚀 Building Spring by Example: Completing the Advanced Spring Module
When I started learning Spring, I noticed something about many of the tutorials I found. They often showed how to use a feature, but not always why…
Week 13 of #100DaysOfCode: Completing Spring Microservices and Starting JUnit 5
Introduction This week was another challenging but rewarding part of my #100DaysOfCode journey. I started the week by learning about Docker and cont…
Week 12 of #100DaysOfCode: Exploring Spring Cloud and Microservices Infrastructure
Introduction This week was another challenging but rewarding part of my #100DaysOfCode journey. I continued going deeper into Microservices with Spr…
What Boot adds over plain Spring
What Boot actually is If you have written any Spring at all, you have met the container — the engine that reads your classes, builds one object per…
AOP: aspect / pointcut / advice / weaving
Every codebase grows a set of chores that have nothing to do with the actual job of a method, yet somehow end up inside every method anyway. Logging…
What I gave up to run Spring static analysis in a browser
There is a question that costs me half an hour every time I have to answer it: If I change this controller method, what else breaks? The honest proc…
Week 10 of #100DaysOfCode: Exploring Microservices and Modern Architecture
Introduction This has been one of the toughest weeks I've experienced since starting this challenge. There were moments when I doubted myself , ques…
BeanPostProcessor & BeanFactoryPostProcessor
Two hooks with nearly the same name Spring's container builds your objects so you don't have to. You mark a class, and a fully-wired object — a bean…
Claude's System Prompt Grew From 358 to 3,235 Words. Here's What It Teaches Production AI Teams
This week, Anthropic's system-prompt release notes became the top story on Hacker News. The page is where Anthropic publishes the exact instructions…
🚀 Building Spring by Example: Completing the Bean Lifecycle Module
When I started learning Spring, I noticed something about many of the tutorials I found. They often showed how to use a feature, but not always why…
Книга: «Java для профи. Инструменты, фреймворки, тестирование, производительность»
Привет, Хаброжители! В книге «Java для профи. Инструменты, фреймворки, тестирование, производительность» тандем опытных Java-разработчиков проводит…
MCP Goes Stateless: Building AI Agent Servers with Spring AI 2.0
Last month, I was building an AI assistant for an e-commerce system. The idea was simple: let users ask natural-language questions about orders and…
Spring AI vs LangChain4j: Which Java AI Framework Should You Choose in 2026?
Earlier this year, I needed to add an AI assistant to a Spring Boot application I maintain. Nothing exotic -- just a chat interface that could answe…
Избавляемся от потерянных событий в микросервисах — как я написал свой Spring Starter для Outbox/Inbox
Всем привет! Меня зовут Григорий, и недавно при разработке своего микросервисного приложения я нашёл уязвимость — сообщения, пересылаемые…
SpringBoot + mybatis-plus项目的SQL映射问题（完全萌新？
完全的萌新第一个SpringBoot项目，主要爆红问题是： MyBatis-Plus尝试执行某个 Mapper 方法，却找不到与之对应的 SQL 映射 具体爆红日志如下： 2026-07-29T16:57:48.976+08:00 ERROR 38512 --- [nio-8080-exec-6…
Running Snyk on Real Legacy Java Code — The Full Unfiltered Results
Numbers are easy to skim. 10 Critical. 99 High. 59 Medium. 20 Low. 188 total. Those numbers appeared in the first article and they're striking — but…
Rod Johnson Is Back - and He's Bringing AI Agents to Java
If you have written enterprise Java in the last 20 years, you know the name Rod Johnson. He created Spring Framework back in 2003 - the thing that m…
Explain the Concept of "Convention over Configuration" in Spring Boot
If you've ever started a Java project, you probably know how much configuration is usually required. You need to configure XML files, register beans…
Stop Begging Your LLM for Valid JSON: Self-Correcting Structured Output in Spring AI 2.0
Every developer who has worked with LLMs has been there. You ask the model for JSON. You describe the schema. You say "please only respond with vali…
Spring Security: аутентификация через REST
В данной статье мы научились реализовывать аутентификацию при помощи Spring Security и протестировали её же. Читать далее
Spring Secutiry: начало работы и первые шаги на практике
В данной статье поигрались с базовыми возможностями Spring Secrity и узнали фундамент на котором строится вся остальная безопасность приложения Чита…
How does Spring Boot simplify the development of Java applications?
Introduction Imagine you're assembling a new piece of furniture. One option is to buy every screw, bolt, plank, and tool separately, then spend hour…
Four Bugs Stood Between Me amd "Sign in with Google"
Summary: I had a rough time adding Google login to my app, Kenning. It took me a while to figure out four issues that were causing problems. These i…
I Built a RAG App, Then Asked It What Car I Like. It Didn't Know.
TL;DR: Phase 1 of a from-scratch RAG app — Spring AI, pgvector, local Ollama — ends with a working pipeline and two failures that look identical fro…
Building an AI Chat Agent with MCP, Spring AI
Model Context Protocol (MCP) is an open standard for connecting AI apps to tools and data sources. A useful way to think about it is as a USB-C port…
The Version That Broke Everything
A deep dive into API versioning — what goes wrong without it, the old way developers survived it, and why Spring 7's new approach changes everything…