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JavaGuide

Backend tech guide and AI engineering practice covering fundamentals, databases, distributed systems, high concurrency, system design, plus AI agents and large-model engineering.

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Latest from JavaGuide

68 recent articles

JavaGuide

Dec 23, 2025 · Artificial Intelligence

Is GLM‑4.7 the Open‑Source Coding Model that Rivals Claude Sonnet 4.5?

The author integrates the newly released GLM‑4.7 model into Claude Code, runs three real‑world coding scenarios—including a React dashboard, a FastAPI authentication service, and a refined landing page—and finds that its stability, reasoning, and output quality closely match Claude Sonnet 4.5, positioning GLM‑4.7 as a strong open‑source alternative.

AI coding assistantClaude CodeGLM-4.7

0 likes · 8 min read

Is GLM‑4.7 the Open‑Source Coding Model that Rivals Claude Sonnet 4.5?

JavaGuide

Dec 19, 2025 · Backend Development

IntelliJ IDEA 2025.3.1: Critical Fixes and the Rollback of Query Console

IntelliJ IDEA 2025.3.1 quickly follows the 2025.3 major release, fixing over 200 issues, reinstating the classic Query Console, addressing WSL‑related Java debugging problems, stabilizing Gradle/Maven sync for large multi‑module projects, improving Spring tooling, Java debugging, Kotlin‑MongoDB support, and correcting terminal and TypeScript bugs.

2025.3.1IntelliJ IDEAJava

0 likes · 6 min read

IntelliJ IDEA 2025.3.1: Critical Fixes and the Rollback of Query Console

JavaGuide

Dec 2, 2025 · Interview Experience

Tuhu Auto’s 2023 Java Backend Salary & Interview Guide: 30k‑33k Packages and Key Technical Topics

The article details Tuhu Auto’s Shanghai Java backend compensation (30k‑33k monthly with 14.4‑month salary and 2‑3w signing bonus), outlines the company’s market position, and provides a comprehensive list of technical and HR interview questions covering JVM, concurrency, MySQL, Spring, DDD, distributed locking, rate limiting, and more.

BackendJVMJava

0 likes · 7 min read

Tuhu Auto’s 2023 Java Backend Salary & Interview Guide: 30k‑33k Packages and Key Technical Topics

JavaGuide

Nov 27, 2025 · Backend Development

Xiaomi Java Interview Insights: Reflection, Dynamic Proxies, Redis & JWT

The article starts by highlighting Xiaomi's competitive software developer salaries, then provides a detailed Java interview guide covering reflection fundamentals, static vs dynamic proxies, SPI vs API, synchronization behavior, Redis caching strategies, and JWT authentication, complete with code examples and practical comparisons.

Dynamic ProxyJWTJava

0 likes · 25 min read

Xiaomi Java Interview Insights: Reflection, Dynamic Proxies, Redis & JWT

JavaGuide

Nov 26, 2025 · Interview Experience

Why Campus Recruitment Often Leads to Small‑Mid‑Size Companies: A Student’s Interview Journey

A third‑year student recounts four distinct campus interviews—from a state‑owned big‑data firm to an AI startup—detailing test formats, technical questions, and personal growth, and concludes that most graduates ultimately join the countless small‑mid‑size companies that keep society running.

AIBackendInterview Experience

0 likes · 9 min read

Why Campus Recruitment Often Leads to Small‑Mid‑Size Companies: A Student’s Interview Journey

JavaGuide

Nov 24, 2025 · Backend Development

Alibaba 2024 Backend Salary Ranges and Essential Interview Preparation Guide

The article details Alibaba's 2024 campus backend salary bands, compares them with peers, outlines the interview process and project presentation tips, and provides in‑depth technical tutorials on Redis Lua scripts, cache consistency, slow‑query logging, MySQL optimization, Java reflection, WebSocket vs polling, SSE, TCP/UDP, and HTTP vs HTTPS.

AlibabaBackendJava

0 likes · 24 min read

Alibaba 2024 Backend Salary Ranges and Essential Interview Preparation Guide

JavaGuide

Nov 21, 2025 · Backend Development

Spring Boot 4.0 Released: Core New Features and Upgrade Guide

Spring Boot 4.0, built on Spring Framework 7.0, introduces HTTP Service Clients, native API versioning, full JSpecify null‑safety, Java 25 support, upgraded dependencies, Gradle 9 compatibility, Redis static master‑replica configuration, and drops Undertow, with migration advice to move through 3.5 first.

Gradle 9HTTP Service ClientsJSpecify

0 likes · 8 min read

Spring Boot 4.0 Released: Core New Features and Upgrade Guide

JavaGuide

Nov 20, 2025 · Backend Development

iFlytek Salary Offers Revealed + Comprehensive Java Interview Prep

The article shares iFlytek's recent campus salary packages, then dives into a detailed Java interview guide covering Redis data types, key expiration handling, thread safety, ThreadLocal usage, MySQL covering and composite indexes, slow‑query analysis, and SQL‑injection prevention techniques.

Covering IndexJava InterviewMySQL

0 likes · 17 min read

iFlytek Salary Offers Revealed + Comprehensive Java Interview Prep

JavaGuide

Nov 19, 2025 · Artificial Intelligence

Spring AI 1.1 Released: Explosive New Features for Java AI Development

Spring AI 1.1.0 arrives with a major overhaul, adding out‑of‑the‑box Model Context Protocol support, five‑mode prompt caching that can cut LLM costs by up to 90%, reasoning APIs, recursive advisors, a broadened model ecosystem, enhanced vector‑store and chat‑memory options, and richer observability integrations.

AI integrationJavaMCP

0 likes · 9 min read

Spring AI 1.1 Released: Explosive New Features for Java AI Development

JavaGuide

Nov 17, 2025 · Backend Development

How Spring Boot 4’s JSpecify Eliminates NullPointerExceptions

Spring Boot 4 adopts JSpecify’s null‑safety annotations, replacing JSR‑305, to make nullability explicit at compile time; using @NullMarked and @Nullable with tools like NullAway, developers can catch potential NPEs early, reduce defensive checks, improve API contracts, and handle collections and parameters more safely.

@NullableJSpecifyJava

0 likes · 13 min read

How Spring Boot 4’s JSpecify Eliminates NullPointerExceptions