Programmer Help

LVGL is a good thing to use. Now there are more and more tutorials on the Internet, many of which are for V7 and below, but the upgrade of V8 for V7 is still very large, and the use methods of many controls are different, so there needs to be a suitable migration project to use. I've been trying to transplant these two days, and there have bee ...

preface It was in 2002, and MySQL 4.1 began to support UTF-8 coding RFC 2279 It is stipulated that the code uses 1 ~ 6 bytes to store a single character, and MySQL developers checked it in September of the same year Source code The UTF-8 encoding is changed from the maximum 6 bytes to 3 bytes, so there is the current UTF8MB3. As we all know, U ...

Overview of this articleThis paper demonstrates how to make a springboot application based on gradle into a docker image through actual combat. The relevant software version information is as follows:Operating system: macOS Big Sur 11.2.2JDK: 1.8.0_211gradle: 6.8.3docker: 20.10.5springboot: 2.4.4New java projectIn order to be closer to the actu ...

Design pattern is a high-level abstract summary of various codes written in your actual work. If you don't learn design pattern, the abstraction ability will certainly not be too strong. There are 23 common design patterns. Today we only talk about the simplest factory pattern.Factory mode is a creation mode, which obtains new objects one by on ...

prefaceLast blog post, we This paper deeply introduces the integration of spring boot and Redis We use RedisTemplate or StringRedisTemplate to select different data structures in combination with scenarios, which will cause the cache code and business code to be tightly coupled. Is there a simpler way?Answer: Yes, SpringCache.In this blog post, ...

preface We talked before Talk about how to implement an SPI with interceptor function . At that time, the core idea of our implementation was to use responsibility chain + dynamic agent. Today, let's talk about how to integrate sentinel to realize fuse current limiting through dynamic agent Pre knowledge Introduction to alibaba sentinel Se ...