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There are many high availability schemes for MySQL, such as dual master, MHA, MMM, etc. here is just the simplest dual master high availability scheme. 1, Configure MySQL as master-slave 1. Environmental preparation system IP host name service Centos 7.5 192.168.20.2 mysql01 MySQL+keepalived Centos 7.5 192.168.20.3 mysql02 MySQL+keepali ...

This paper records the implementation of simple paging function. Relevant environment: Spring boot framework; Template engine: thymeleaf; Front end framework: layui; Framework of persistence layer: mybatis; Paging plug-in: pagehelper; Write some nonsense. (please skip it if you are eager to realize th ...

MyBatis Getting Started to CURD As a happy little farmer, we often repeat different versions at every stage, student management, user management, registered logins, from the console version of JavaSE, or GUI version, to the JSP version of JavaWeb, to the version that just uses HTML as a front-end presentation, and to a newer technology where w ...

Introduction to programmatic transaction usage postures for SpringBoot series tutorials The blog posts on the aforementioned transactions mainly make use of the declarative posture of the @Transactional annotation, which has the advantages of simple use, low intrusiveness and high identifiability (you know you are using the transaction at a ...

See the detailed course design report and the source code of C and java Code cloud: https://gitee.com/xyy9/socket github: https://github.com/XYYhub/socket Build database skip C ා connect to database Need to add MySql.Data.dll reference connection database Code page adding using mysql.data.mysql clien ...

Introduction to Ansible Ansible can manage both Linux for Redhat s, Linux for Debian, and Windows hosts.The management node only connects to the remote host while executing the script, and there is no special synchronization mechanism, so exceptions such as power outages generally do not affect ansbile. Ansible is a new automated operation ...

Android references external database (1) There is a ready-made database, which needs to be directly introduced into the project. Prepare for preparation Before we start, we need to confirm the table structure and field information of the existing database. (pay attention to the size of the database, which is useful lat ...

Opening chapter Through the previous article python entry practice - student management system I practiced a bunch of python syntax. This article summarizes the introduction of Django as a web framework. The premise is to have relevant web development experience (Java, php, etc.). Because this article will not involve the concept of http protoc ...

data base Basic concepts of database English words of DataBase: DataBase abbreviation: DB What is a database? Warehouse for storing and managing data Characteristics of database 1. Persistent data storage, in fact, the database is a file system 2. Easy to store, manage and operate data 3. A unified ...

core technology java web servlet: HttpServlet class, configuration of Servlet class based on @WebServlet() comment tomcat project deployment mysql database jdbc druid database connection pool html Software used java web integrated development environment: IntelliJ IDEA Server: tomcat Visualizatio ...