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Review MyBatis 1. Import the dependencies required by MyBatis in Maven <dependencies> <!--Mysql drive--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.22</version> </dependency> <!--MyBatis- ...

What are spring IOC and spring AOP? IoC (inversion of control) and AOP (aspect oriented) are the two cores of the Spring framework. Java Spring framework can flexibly manage transactions in a declarative way to improve development efficiency and quality. IoC control reversal Ioc Inversion of Control is not a technology, but a design idea ...

1.Neo4j is a high-performance NOSQL graphical database written in Java and Scala Download address of neo4j official website: https://neo4j.com/download-center/#enterprise Neo4j Chinese community: http://neo4j.com.cn/ advantage: Fast query speed: when the relational database stores a large amount of data and there are many associated tables, ...

I. Introduction to Eureka According to the official introduction: Eureka is a REST (Representational State Transfer) based service that is primarily used in the AWS cloud for locating services for the purpose of load balancing and failover of middle-tier servers. Eureka Is based on REST Services, mainly in AWS Use in the cloud, Location serv ...

When integrating dubbo and zookeeper, I encountered all kinds of messy errors. Share it version control SpringBoot2.5.2 1, Add dependency and log configuration 1. Rely on <!--zookeeper client--> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> ...

catalogue Reasons for using AOP (Introduction to AOP) Use of AOP Enable AOP support Writing facet classes and test methods Write slice method @Before @After @AfterThrowing @AfterReturning @Around Reasons for using AOP (Introduction to AOP) We know that spring has two cores, IOC (inversion of contro ...

Spring Learning Notes - Auto-assemble Bean Auto-assembly is one way Spring meets bean dependencies Spring automatically finds and assembles properties for bean s in the context There are three ways to assemble in Spring Explicit Configuration in xmlExplicit Configuration in JavaImplicit automatic assembly of bean s ByName Auto-assemble ...

1: Project background: after fishing, I'm going to write a project to consolidate myself. There are some cd problems in the process of code project. You may have encountered them. Share my summary again. I want to use spring cloud + vue to write a front and back-end separated project. Because I haven't learned vue yet, hahaha, hahaha, so I make ...

Next, let's fully analyze the circular reference of Spring today What is circular reference? I don't need to force it. Go directly to the code and debug and analyze the source code in the whole process @Configuration @ComponentScan({"com.carry"}) public class Appconfig { } @Component public class X { @Autowired private Y y; public X() ...

I Spring concept Spring is a lightweight J2EE framework, which can solve the complexity of enterprise application development. Spring has two core parts, IOC and AOP. (1) IOC: control reversal. Leave the process of creating objects to Spring for management. (2) AOP: facet oriented. Function enhancement without modifying the source code. Sp ...