BiCaiJia Technology Team
This tutorial explains the fundamentals of Spring AOP, introduces key terminology and pointcut expressions, demonstrates how to configure various advice types, and provides a complete Spring Boot example that uses an aspect to automatically record web request logs with minimal code changes.
This article breaks down the realistic role of product managers, highlighting core competencies such as communication, independent thinking, and project management, and offers practical guidance on handling diverse requirements and ensuring product plans smoothly transition into development.
Learn how to harden Apache Tomcat by disabling default users, removing unnecessary webapps, preventing directory listings, enforcing HttpOnly cookies, securing shutdown ports, hiding version info, disabling auto‑deployment, setting proper file permissions, enabling access logs, customizing error pages, and configuring custom application paths.
This guide walks you through setting up Kafka and Zookeeper, adding Spring Integration dependencies, configuring application.yml, creating producer and consumer configurations with @Configuration and @EnableKafka, implementing a @KafkaListener, and testing the integration via a Spring MVC endpoint, while highlighting common pitfalls.
This guide walks you through installing Zookeeper and Kafka on a CentOS server, configuring essential settings, creating topics, and running producers and consumers, while highlighting common pitfalls and providing the exact commands needed for a successful deployment.
This article explains the four main stages of the SIFT algorithm—scale‑space construction, DoG extrema detection, keypoint orientation assignment, and descriptor generation—while providing a full Java implementation with detailed code snippets and explanations of each processing step.
Learn how to integrate the Select2 jQuery plugin by initializing basic and remote-data selects, configuring AJAX options, handling its eleven events, and leveraging common parameters and methods such as multiple selection, value setting, and enable/disable features for richer UI controls.
This article introduces Android NDK fundamentals, explains the Android layered architecture, clarifies the roles of SDK, NDK, and JNI, and provides a detailed step‑by‑step tutorial for creating and debugging native C/C++ projects in Android Studio.
This guide explains why removing Apache/Tomcat log files while the services are running fails to release disk space, analyzes the inode‑locking behavior, and provides practical solutions such as restarting the server, truncating logs, and using scheduled cleanup commands.
This article explains how unsynchronized access to instance variables can cause dirty reads in multithreaded Java programs, demonstrates the issue with sample code, shows how adding the synchronized keyword resolves it, and explores the behavior when multiple objects each hold their own lock.
