Issue 17 - what is MySQL database? It's enough to read this dry article!

preface Why study MySQL? Because MySQL is one of the most popular relational database management systems, MySQL is the best software in web applications. The sql language used by MySQL is the most commonly used standardized language for accessing databases. Rest assured, friends who read this issue are suitable for: website development, softwar ...

Posted by keigowei on Mon, 16 May 2022 11:38:44 +0300

Spring learning notes: instantiation of Bean

catalog: 🥪 1, Instantiated Bean 🍬 1.1 environmental preparation 🍬 1.2 instantiation of construction method (common) 🍕 Step 1: prepare the class to be created 🍕 Step 2: configure the class to the Spring container 🍕 Step 3: write the running program 🍕 Step 4: provide constructor test in class 🍕 Step 5: change the constructor to private te ...

Posted by timc37 on Sun, 15 May 2022 01:17:37 +0300

Zero basis of Java syntax -- definition and use of array

Java series article directory Write once,Runanywhere.??? This article explains arrays. The knowledge explained from this article is different from that of C language. ?? ?? ?? If you think my article is helpful to you, please also [focus on praise collection]. Getting your support is my biggest motivation!!! ?? ?? ?? Copyri ...

Posted by slava_php on Sun, 15 May 2022 00:41:51 +0300

The pytest test framework combines allure to generate beautiful test reports

1. Introduction to allure allure is a lightweight, flexible, multilingual test reporting tool. Not only does it present what has been tested very succinctly in the form of a neat Web report, but it allows everyone involved in the development process to extract maximum useful information from the day-to-day execution of tests. From a developme ...

Posted by transformationstarts on Sun, 15 May 2022 00:30:16 +0300

spring. Loading principle of factories and custom environment postprocessor

catalogue spring. Loading principle of factories 1. Construction method of springapplication  1.1 SpringApplication#getSpringFactoriesInstances  1.1.1SpringFactoriesLoader#loadFactoryNames-->loadSpringFactories 1.1.2 createSpringFactoriesInstances Customize EnvironmentPostProcessor Question: how to make the customized environment post ...

Posted by jaddy on Sat, 14 May 2022 23:07:49 +0300

The most powerful error retry Library in Python

When we write programs, especially those related to network requests, such as calling web interfaces, running web crawlers and other tasks, we often encounter some accidental request failures. In this case, if we simply catch errors and skip the corresponding tasks, it is certainly not rigorous, especially in web crawlers, there will be the ris ...

Posted by joyser on Sat, 14 May 2022 21:43:46 +0300

Introduction to network programming

introduction Network is the basis of computer communication. Network programming is the best way to learn computer network. Generally, there are two standard computer network communication protocols: UDP and TCP (microcomputer network communication protocol (such as CAN, etc.) is not included here). First, ape introduces several common intervi ...

Posted by Digwood on Sat, 14 May 2022 07:31:03 +0300

Spring source code (14) creation process of Spring Bean

🚀 High quality resource sharing 🚀 Learning route guidance (click to unlock)Knowledge orientationCrowd positioning🧡 Python actual wechat ordering applet 🧡Progressive classThis course is the perfect combination of Python Flash + wechat applet. From project construction to Tencent cloud deployment and launch, it creates a full stack ordering sy ...

Posted by pspcrazy on Fri, 13 May 2022 23:05:36 +0300

[C language] the realization of Sanzi chess and some small improvements in AI (attack, defense, occupying favorable terrain)

This blog is aimed at C language beginners. For example, the AI part of the computer is only some relatively simple improvements (attack, defense, occupying favorable terrain), and does not involve intelligent algorithms (such as game tree). Some of the codes contain my understanding of programming. If there are deficiencies, please give me mor ...

Posted by ryy705 on Fri, 13 May 2022 23:06:01 +0300

Two implementation methods of spring filter (MVC)

1. Concept The Interceptor of Spring MVC is similar to the Filter of Java Servlet. It is mainly used to intercept users' requests and handle them accordingly. It is usually used in functions such as permission verification, logging request information, judging whether users log in or not. Defining an interceptor in the Spring MVC framework ...

Posted by csn on Fri, 13 May 2022 02:03:43 +0300