Programmer Group

introduction Compared with the omniscience of Java and Android, OKHttp needed to introduce additional Okio libraries when it was introduced through Gradle in the early days. I didn't pay attention to it when it was first used, just like most. I didn't realize that Okio is a treasure house until I slowly like to go to the bottom and go deep ...

This paper mainly talks about how to use Socket to communicate between server and client based on TCP and UDP, the communication flow and some details in the code, and the differences and reasons between them in the code. Catalog 1. Socket 2. Communications via TCP Server Side Create Welcome socket Create a dedicated socket Reading data ...

Installation instructions: A mysql program file, a configuration file, running multiple mysql instances (each with its own distinct data directory).For the convenience of the test, only two examples are used in this experiment. MySQL program installation directory: /usr/local/mysql_5.6.38 Data directories for MySQL i ...

Installation instructions: A mysql program file, a configuration file, running multiple mysql instances (each with its own distinct data directory).For the convenience of the test, only two examples are used in this experiment. MySQL program installation directory: /usr/local/mysql_5.6.38 Data directories for MySQL i ...

Kafka -- cluster building Service discovery: first of all, the mutual discovery of services between kfakas is realized by using Zookeeper. Therefore, Zookeeper must be built in advance. To build a Zookeeper cluster, please pay attention to the blog's article: Building Zookeeper cluster；Service relat ...

1, Introduction to front end development As a programmer, if you want to develop a website, its essence is to receive the browser's request and return the data to the socket server, and the returned data format should conform to the rules recognized by the browser. The purpose of the front-end development course is to take you to learn all th ...

Take a look at the simplest example of CGLIB, and feel how AOP is achieved? /** * Created with vernon-test * Description: * User: chenyuan * Date: 16/4/25 * Time: 9:25 am */ public class Target { public String execute() { String message = "----------test()----------"; System.out.println(message); return message ...

Write at the beginning If you want to learn the wheel making technology, you can see my previous collection of original articles: https://mp.weixin.qq.com/s/RsvI5AFzbp3rm6sOlTmiYQ If you want to get 3700G of free learning materials or join the technology exchange group (no advertising), you can use the end of the article + my wechat to focus ...

The pattern is separated from the language, and the singleton pattern in the design pattern is very important in the concurrency. We should not indulge in the language and architecture, but think about the problem from the design point of view. Technology is the easiest to be replaced. Only by formin ...

1. Environment OS environment: Linux db01 2.6.32-431.el6.i686 MySQL version: mysql-5.5.44 MySQL installation path: /usr/local/mysql MySQL data path: /data MySQL port: 3506 3507 2. Preparations 1. Dependent Package Installation yum install ncurses-devel libaio-devel gcc gcc-c++ bison -y 2. Install compiler ...