Focused on Java technologies: SSM, the Spring ecosystem, microservices, MySQL, MyCat, clustering, distributed systems, middleware, Linux, networking, multithreading; occasionally covers DevOps tools like Jenkins, Nexus, Docker, ELK; shares practical tech insights and is dedicated to full‑stack Java development.
This tutorial demonstrates how to integrate Spring with MyBatis and JUnit using only annotations, covering Maven dependencies, Druid data source configuration, MyBatis SqlSessionFactory setup, mapper scanning, dynamic SQL with @SelectProvider, service layer wiring, and JUnit test execution with Spring's test context framework.
This tutorial demonstrates static proxy (decorator pattern), JDK dynamic proxy (interface-based), CGLIB dynamic proxy (subclassing), and Spring AOP's dual-proxy implementation with @EnableAspectJAutoProxy, using an EmployeeService example that adds C# and Go skills without modifying original code.
This tutorial demonstrates how to implement Spring declarative transaction management using only annotations, covering project setup, configuration classes, MyBatis integration, service layer @Transactional usage, and JUnit tests verifying commit and rollback behavior.
This tutorial demonstrates Spring's JdbcTemplate and NamedParameterJdbcTemplate for database CRUD operations, covering Maven setup, Druid connection pooling, configuration classes, DAO implementations with both positional and named parameters, service layer, and JUnit tests, recommending NamedParameterJdbcTemplate for production use.
This tutorial demonstrates configuring Spring Data RedisTemplate using pure Java annotations, covering Maven dependencies, connection pooling, serialization, and CRUD operations for String, List, Hash, Set, and Sorted Set data types with complete code examples.
This tutorial demonstrates how to perform ElasticSearch index, document, query, and aggregation operations using both DSL queries and Java RestHighLevelClient within a SpringBoot project, covering setup, CRUD, search types, sorting, pagination, highlighting, and nested aggregations with code examples.
This tutorial walks through configuring MyBatis with XML for database operations, covering Maven dependencies, project structure, core configuration files, mapper interfaces, dynamic SQL, and JUnit testing with a complete employee CRUD example.
This tutorial demonstrates Java Stream API for filtering and extracting collection data, covering stream creation from Lists, Sets, Maps, and arrays, key operations like filter, limit, skip, concat, distinct, and collecting results into List, Set, or Map with practical code examples.
This tutorial details deploying a three-node Seata 1.8.0 cluster using Docker Compose, Nacos for service registration and configuration, and MySQL for persistent transaction storage, covering directory layout, node-specific configs, database schema, and verification steps.
This guide details the step-by-step process for unblocking a banned WeChat account using the official self-service tool, including SMS verification, friend-assisted verification requirements, and tips to prevent future bans.
