Linux tutorial (manual): concepts that Linux beginners must understand (common commands and operation analysis)

Recently, I plan to publish some articles on the use of basic commands of terminals under Linux. If you can use Linux, these articles can be used as a manual. If you've never been in touch with Linux readers, it's just right to see that there's nothing wrong (from getting started to giving up the series). I intend to write a TLDR at the begin ...

Posted by ayampanggang on Mon, 21 Feb 2022 16:41:34 +0100

IDEA realizes ssm integration and rapid development CRUD -- basic environment construction

Project description This project is a learning note document based on Shang Silicon Valley video, which is only used for learning, combing and summarizing relevant knowledge for later review, not for commercial purposes. Project introduction According to the basic frameworks such as Spring, Spring MVC and MyBatis, a simple addition, dele ...

Posted by Tandem on Mon, 21 Feb 2022 16:31:36 +0100

Elasticsearch rest high level client operation elasticsearch, an article that takes you into a no man's land

abstract Idle boring, so I wrote this cool article, which Mina sang can use directly, unless there are almost no bug s, when I didn't say (doge) QA: why don't you rely on the operation encapsulated by springboot? Ou believes that springboot over encapsulates the operation class, and it is OK to realize ordinary and simple operations, but i ...

Posted by ntohky14 on Mon, 21 Feb 2022 16:25:14 +0100

JVM (Java Virtual Machine)

7. Mnemonic Decompile class files through javap: Enter the class file directory and enter: javap -c class name. Related mnemonic aload_0: A reference type is loaded.First letter: a: reference type, i: integer type, l: long integer type0: indicates the 0th variable. invokespecial: including init, private and super Method (), where &lt ...

Posted by gkostenarov on Mon, 21 Feb 2022 16:20:45 +0100

C + + Advanced Learning -- signal processing under multithreading / multiprocessing

catalogue 1, Introduction 2, Use of signals in multi process ------>2.1 signal processing flow ------>2.2 installation registration ------>2.3 signal set operation function ------>2.4. Set signal shielding bit function ------>2.5. Query the shelved (pending) signal function ------>2.6 summary 3, Use of signals under m ...

Posted by benyamin on Mon, 21 Feb 2022 15:49:09 +0100

Springboot annotation @ EnableConfigurationProperties, @ ConfigurationProperties, @ ConfigurationPropertiesScan differences

preface In the SpringBoot project, we often need to bind some configuration items with specific prefixes to a configuration class. At this time, we can use @ EnableConfigurationProperties and @ ConfigurationProperties annotations to implement. In SpringBoot 2 The @ ConfigurationPropertiesScan annotation is also added in 2.0 to help us simplify ...

Posted by amal.barman on Mon, 21 Feb 2022 15:30:49 +0100

Detailed explanation of mongodb changestream

preface changestream is a collection based change event stream that appeared after the 3.6 version of monggodb. The application passes through dB collection. Commands such as watch () can obtain the real-time changes of the monitored object Students who are familiar with the principle of mysql master-slave replication should know that it is t ...

Posted by helpwanted on Mon, 21 Feb 2022 15:24:13 +0100

Manually deploy MySQL database on Linux system

Introduction: MySQL is a relational database management system, which is often used to build websites such as LAMP and LNMP. This book will introduce you how to install, configure and remotely access MySQL database on ECS instance of Linux system. For image download, domain name resolution and time synchronization, please click Alibaba open ...

Posted by anujgarg on Mon, 21 Feb 2022 15:18:56 +0100

Redux status management

redux Chinese document  https://www.redux.org.cn/ redux official website https://redux.js.org/ The so-called state management is to manage the data in the application. Concept: almost all projects with chaotic data flow management can't go online. A good project must have very good data flow management. How to use Redux? Remember "thre ...

Posted by psycovic23 on Mon, 21 Feb 2022 15:17:03 +0100

[advanced pointer application (Simulated Implementation of qsort sorting function)]

preface: 🐱 ‍ 🏍 Ha ha, I'm very glad that you have entered my series of articles on pointer learning. I believe that in the process of learning pointer, most of your little partners must not be plain sailing. Once you learn it, you know that there may be a stagnation in one of these links. I think so as a Xiaobai, but no matter what, y ...

Posted by epimeth on Mon, 21 Feb 2022 15:14:22 +0100