Netty learning notes netty advanced-1

preface The notes are based on black horse's Netty teaching handout and some of my own understanding. I think it's very good in the videos I've seen. There's basically no nonsense. Video address: Black horse Netty Sticky bag and half bag 1. Sticking phenomenon Since sticky packets have been introduced in the Nio concept before, I won ...

Posted by bharrison89 on Sun, 23 Jan 2022 17:42:14 +0100

Python learning 1 (variables and simple data types, if statements)

Variables and simple data types Next, use variable to represent variables. variable Precautions for variable naming: 1. Variable names can only contain letters, numbers, and underscores. Variable names can start with letters or underscores, but not numbers. For example, you can name the variable message_1, but it cannot be named 1_messag ...

Posted by Imtehbegginer on Sun, 23 Jan 2022 15:29:44 +0100

14_ The most comprehensive Java object-oriented explanation_ Basic concepts, creation and use of objects

Learn the three main lines of object-oriented 1. Java classes and class members Attributes, methods, constructors, code blocks, internal classes; 2. Three characteristics of object oriented Encapsulation, inheritance, polymorphism, (abstraction); 3. Abstract classes, interfaces, and other keywords this, super, static, final, abstract, interf ...

Posted by dk4210 on Sun, 23 Jan 2022 14:40:10 +0100

[PTA - grade B - detailed explanation] 1014 - Sherlock Holmes's date - I don't understand the series

Description: the difficulty of this topic is not very high, because the topic has described the ideas almost, but there are some details to pay attention to Title: Solution 1: using char array #include<iostream> #include<string> using namespace std; int main() { string s1, s2, s3, s4; cin >> s1 >> s2 >> s3 ...

Posted by TheSaint97 on Sun, 23 Jan 2022 13:32:47 +0100

Spring cloud and seata and nacos integration detailed tutorial

1, Environmental preparation Existing environment: mysql8.0.25 nacos resources Resource nameaddressexplainnacoshttps://github.com/alibaba/nacos/tagsService discovery, registry, configuration centerseata1.4.2https://seata.io/zh-cn/blog/download.htmlDistributed transaction Introduction to Seata 2, seata AT mode integration 1. nacos configur ...

Posted by hnissani on Sun, 23 Jan 2022 12:29:10 +0100

Class and object beginner

Class is like a container, putting the same transaction in the same place. Equivalent to Xiao Ming, Xiao Hong, etc. all belong to the category of people. Xiao Ming is also called object in c + +. Take Xiao Ming as an example: Xiao Ming has his own height, weight and age. These are the attributes that Xiao Ming has called objects. When Xiao M ...

Posted by Dark-Hawk on Sun, 23 Jan 2022 12:13:51 +0100

help me! On the first day of work, my boss asked me about the built-in SpringBoot. I don't know how to fix it?? SpringBoot built-in tomcat startup principle

) SpringBoot built-in tomcat startup principle preface It has to be said that the developers of springboot are seeking benefits for the public program apes, and they are used to being lazy. xml is not configured, and even tomcat is lazily configured. A typical one click Startup System, so how does tomcat start in springboot? Built i ...

Posted by ed01 on Sun, 23 Jan 2022 12:04:31 +0100

After working as a programmer for so long, how many new features of Java 8-15 do you know?

Since 2018, Java has adopted the strategy of releasing a new version every six months. This strategy keeps Java fresh and strong vitality. In this article, I will bring you six practical new Java features. 1. Optional class NullPointerException is the most classic of all Java exceptions. Everyone must be familiar with it. It often appears ...

Posted by kimberlc on Sun, 23 Jan 2022 10:59:14 +0100

SpringBoot's automatic assembly principle - it's really as simple as you think~

๐Ÿ“‘ Content of this article: SpringBoot two brush automatic assembly principle - in fact, it is really as simple as you think~ ๐Ÿ“˜ Article column: Principle and project development of SpringBoot microservice ๐ŸŽฌ Last updated: January 22, 2022 SpringBoot two brush automatic assembly principle - in fact, it's really as simple as you think~ ๐Ÿ™Š Personal ...

Posted by Grimloch on Sun, 23 Jan 2022 10:57:21 +0100

Minesweeping (recursive implementation version) - Happy New Year

catalogue thinking Clear logic. menu checkerboard Initialization of two checkerboards Lay thunder mine clearance Judge whether to win or lose text.c implementation game.c implementation game.h implementation Detailed explanation of recursive part thinking Clear logic. For convenience, it is divided into three files: text ...

Posted by rar_ind on Sun, 23 Jan 2022 10:01:28 +0100