Resources and tutorials for programmers' advanced learning journey. Advanced tracks in Java, Python, and C#. Blog: https://blog.csdn.net/badao_liumang_qizhi
This tutorial demonstrates how to configure a SpringBoot application to repeatedly call a third‑party HTTP API, parse the returned JSON with FastJSON, and process each data item concurrently using a fixed thread pool initialized in a scheduled task.
This article compiles a set of practical SpringBoot techniques, including Flyway-based SQL version control, JetCache declarative caching, Netty WebSocket service customization, jasypt configuration encryption, ShardingSphere data masking, Jackson response desensitization, read‑write splitting, idempotent request handling, MockMvc testing, and Prometheus‑Grafana monitoring.
This article compiles a series of practical SpringBoot implementations—including AES encryption with Vue, a Netty‑based TCP client that parses hex data into MySQL, multiple Redis integration patterns, strategy‑factory designs, custom annotations for rate limiting, global exception handling, and scheduled tasks—each linked to detailed examples.
This article compiles practical Java code examples for common design patterns—including Simple Factory, Factory Method, Abstract Factory, Singleton (eager, lazy, static inner class, enum, container), Proxy, Decorator, Prototype, Strategy, Observer, and Adapter—each linked to detailed tutorials.
Guava is Google's open‑source Java core library offering utilities such as data validation, immutable collections, caching, and string handling; this article introduces the library and provides ten detailed tutorial links covering Optional, Preconditions, Ordering, concurrency tools, range operations, collection helpers, caching, and more.
This article walks through installing Docker and Docker‑Compose, creating a project directory, writing a docker‑compose.yml that defines Redis, MySQL, Nginx, Java, and a file‑preview service, configuring each container, and using docker‑compose commands to build, start, monitor, and manage the full SpringBoot‑Vue application stack.
This article explains how to replace repetitive getter/setter code with MapStruct by showing dependency setup, defining source and target classes, creating mapper interfaces with @Mapping annotations, testing the conversion, and handling common integration issues such as Swagger conflicts.
This article demonstrates how to use Java 8’s java.time package to obtain the current date and time, extract components, create specific dates, compare dates, handle periodic dates, compute future and past dates, retrieve timestamps, check leap years, calculate differences, and format/parse date strings, with concrete code examples.
This article explains the seven SOLID software design principles—Open‑Closed, Dependency Inversion, Single Responsibility, Interface Segregation, Law of Demeter, Liskov Substitution, and Composite/Reuse—illustrating each rule with clear Java code snippets, refactorings, and practical scenarios such as product pricing, purchasing workflows, and database access.
This article demonstrates how to use JUnit's Assert methods for various checks, creates mock objects and verifies interactions with Mockito, and leverages Java 8 Stream's peek operation for debugging, providing complete code examples for each technique.
