Redis implements the secondary cache of Mybatis
1, Mybatis cache
Like most ORM tier frameworks, Mybatis naturally provides support for L1 and L2 caching. The following is the role and definition of L1 cache and L2 cache.
1. The first level cache is the sqlSession level cache. When operating the database, you need to construct sqlSession object, in which there is a (memory area) data st ...
Posted by ladokha on Sun, 15 May 2022 22:48:08 +0300
Redis learning notes
Redis is a NoSQL Not Only SQL (key value)
NoSQL
Used to solve 3v+3 high
Massive Volume, real-time Velocity, diversity
High concurrency, high scalability and high performance
Redis Download
Windows
Download the zip package and unzip it to the environment folder
Linux
I use the automatic installation of pagoda panel
Directory for aut ...
Posted by ChrisBoden on Sun, 15 May 2022 10:01:55 +0300
What exactly does Spring integrate with Mybatis? (II. Introduction of Spring integration)
@EnableDubbo
@SpringBootApplication
@MapperScan(basePackages = "com.xiaoze.consumer.dao")
public class DubboConsumerApplication {
public static void main(String[] args) {
SpringApplication.run(DubboConsumerApplication.class, args);
}
}
This is a very common way to scan the Dao layer path and register the interface class of ...
Posted by doberman on Sun, 15 May 2022 05:48:09 +0300
Mongo Shell update operation
Mongo Shell update operation
Update document - mongodb CN manual (mongoing. Com) Exercise data: db.inventory.insertMany( [
{ item: "canvas", qty: 100, size: { h: 28, w: 35.5, uom: "cm" }, status: "A" },
{ item: "journal", qty: 25, size: { h: 14, w: 21, uom: "cm" }, status: "A" },
{ item: "mat", qty: 85, size: { h: 27.9, w: 35.5, uom ...
Posted by PHP_apprentice on Fri, 13 May 2022 22:28:37 +0300
3-minute essay: Laravel model scope, for you to "save" more code
introduction
In principle, the code is written once and referenced everywhere. There is no need for a large number of redundant code. This is a trend and the direction of efforts to improve the robustness of the code.
laravel model provides us with a database operation layer, which separates the data interaction.
But over time, with the increa ...
Posted by Graphi on Fri, 13 May 2022 08:52:39 +0300
Spring Boot uses mybatis with TK Mybatis for database operation
Use mybatis with TK Mybatis for database operation
This is a spring cloud project. mybatis uses TK Myabtis general mapper summary blog
Use TK Mybatis is very simple, but there are some pits. Now let's talk about introducing mybatis, which is also very simple
1. First, introduce the dependency of mybatis, jdbc and mysql connecteor into the Co ...
Posted by podja on Fri, 13 May 2022 06:30:58 +0300
Java full stack Development -- Java ERP system development: the establishment of commercial ERP database and the construction of the project
6, Database ORACLE
(1) Table space creation
1. Using PLSQL
--Tablespace--
CREATE TABLESPACE ERP_TS
DATAFILE 'c:\ts\erp.dbf'
SIZE 100M
AUTOEXTEND ON
NEXT 10M;
Created successfully
(2) Create user
-- Create users and associate default tablespaces
CREATE USER ERPUSER IDENTIFIED BY itzheng DEFAULT TABLESPACE ERP_TS;
(3) Assign permiss ...
Posted by johnbrayn on Fri, 13 May 2022 05:39:24 +0300
Based on Spring+SpringMVC+Mybatis distributed agile development system architecture source code sharing
Based on Spring+SpringMVC+Mybatis distributed agile development system architecture, it provides a complete set of public microservice service modules: centralized authority management (single sign-on), content management, payment center, user management (support third-party login), WeChat platform, storage system , configuration center, log an ...
Posted by njm on Thu, 12 May 2022 14:30:35 +0300
Mysql backup and recovery and xtrabackup backup
[transfer] Mysql backup recovery and xtrabackup backup
🎉 New Year greetings 🎉
2017 is about to pass, and the bell of the new year is about to ring. At this beautiful moment of farewell to the old and ushering in the new year, I would like to extend new year's greetings to the people of all ethnic groups across the country, compatriots in th ...
Posted by titeroy on Thu, 12 May 2022 11:10:13 +0300
MySQL backup and recovery
preface
In enterprises, the value of data is very important, and data ensures the normal operation of enterprise business. Therefore, data security and data Reliability is the top priority of operation and maintenance. Any loss of data may have serious consequences for the enterprise.
1: Classification of database backup
1.1: what are t ...
Posted by corsc on Thu, 12 May 2022 07:41:45 +0300