Programmer Group

This article focuses on the use of caching in spring. background Caching is known to all, mainly to improve the speed of system queries. For example, commodity details in e-commerce, which are usually not frequently changed but accessed frequently, can be pulled out of the DB and put into the cache (such as redis, local memory). When it is retr ...

PS: This article is detailed, so it is long. Reading time: 30m~1h. Please read it carefully. I hope you can have a clear understanding of unified exception handling in an hour. 1. Background In the process of software development, it is inevitable to deal with all kinds of exceptions. For myself, at least more than half of the time is dealing ...

Micro front end is a popular technical architecture at present. Many readers privately asked me about its principle. In order to clarify the principle, I will lead you to implement a micro front-end framework from scratch, which includes the following functions:• how to perform route hijacking • how to render sub applications • h ...

catalogue 1, Introduction to getchar function 1.getchar principle2.getchar function declaration3.getchar usage scenario 2, The getchar function uses3, Clever use of getchar function4, Guess you like it Zero foundation C/C + + learning route recommendation: C/C + + Learning directory >> Introduction to basic C language 1, Introd ...

There are many games in perfect world. The more famous ones are Zhu Xian, world of Warcraft and so on. Perfect today, let's take a look at the reverse analysis of the landing of the perfect world! JS reverse parsing There is a click authentication when logging in. Never mind, perfect ignore it first and click directly. Perfect mainly discus ...

In the face of more and more high concurrency scenarios, the display of current limit is particularly important. Of course, there are many ways to implement current limiting. Redis has very powerful functions. I have practiced three ways with redis, which can be implemented in a relatively simple way. Redis can not only limit current, but also ...

I. image structure and principle 1.1 Docker image principle Image is the template for creating containers, which contains the file system and contents required to start containers. Therefore, image is mainly used to create and start containers conveniently and quickly. The Docker image adopts a layered construction mechanism. The bottom layer ...

1, Foreword                  When carrying out fundamental analysis on a listed company, we can usually analyze and interpret its financial data and evaluate its internal value through various channels such as research on listed companies. Our commonly used financial evaluation indicators may includ ...

Message queue rabbimq introduction and installation Extended installation rabbimq is used in laravel Message queue synchronization Redis products rabbitmq introduction and installation 1.1 software introduction Message refers to the data transmitted between applications. Messages can be very simple, such as containing only text strings, or the ...

Chapter 5 functions Function allows us to package a statement sequence into a unit, and then call it many times from other parts of the program. The mechanism of function allows us to decompose a large work into small tasks. We have touched on functions before, and we will discuss more features of functions in this chapter 5.8 defined functio ...