Resources and tutorials for programmers' advanced learning journey. Advanced tracks in Java, Python, and C#. Blog: https://blog.csdn.net/badao_liumang_qizhi
This guide walks through setting up a local LLM with Ollama, configuring Spring Boot and LangChain4j, defining function‑calling tools for weather, order status, logistics and coupons, creating AI service beans, exposing REST controllers, and troubleshooting common integration issues.
This guide walks through why Retrieval‑Augmented Generation (RAG) is needed for large language models, explains the three‑step indexing and query workflow, details LangChain4j’s core components, and provides a complete SpringBoot example—including Maven setup, configuration, service code, and troubleshooting—to create a private document‑vector search system powered by Ollama.
This guide walks through using the SpringAIAlibaba framework to integrate Alibaba Baichuan with Spring Boot via LangChain4j, explains core concepts, compares LangChain4j to Spring AI and OpenAI, and provides step‑by‑step dependency setup, environment configuration, code examples, and a simple browser test.
This guide demonstrates how to integrate LangChain4j into a SpringBoot application to enable multi‑turn chat memory and per‑user session isolation using @MemoryId, configuring ChatMemoryProvider, updating the AI service interface, and testing with curl requests.
This guide shows how to configure a Spring Boot 3 project with JDK 17, add the spring‑ai‑alibaba‑starter, obtain an Alibaba Cloud Baileian API key, and implement a simple AI chat controller for quick conversational testing.
This guide shows how to set up a Spring Boot 3.x project with JDK 17, add the spring‑ai‑alibaba‑starter, configure an Alibaba Cloud Bailei API key, and implement a simple chat controller to call the model via Spring AI.
This article explains the Java Memory Model (JMM), detailing its purpose, the distinction from JVM memory structure, the eight memory interaction operations, the happens‑before principle, memory barriers, and common pitfalls such as double‑checked locking and visibility bugs, with concrete code examples.
This article explains how Java threads interact using volatile for visibility, synchronized blocks for mutual exclusion, wait/notify (and Condition) for coordination, piped streams for one‑way byte communication, as well as Thread.join and ThreadLocal utilities, providing concrete code examples, best‑practice guidelines, and performance considerations.
This article explains Java 8's built‑in lock mechanisms—including synchronized, ReentrantLock, ReadWriteLock, and StampedLock—detailing their characteristics, advanced features, and practical usage through inventory, banking, and order‑processing examples with complete code demonstrations.
Design patterns provide reusable solutions for common Java development challenges; this article explains their core concepts, categorizes creational, structural, and behavioral patterns, links them to SOLID principles, offers real‑world application scenarios, best‑practice guidelines, common pitfalls, and concrete code examples across e‑commerce, logging, and game development.
