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Introduction to Spring framework Overview of Spring framework Spring is an open source design level framework, which solves the loose coupling problem between business logic layer and other layers. Therefore, it runs through the whole system application with the idea of interface oriented programming. Spring is a lightweight java develo ...

1. Introduction to rocketmq 1.1MQ introduction MQ (Message Queue) Message Queue is a queue used to save message data Queue: a type of data structure characterized by "first in first out" 1.2 what is a message Service requests between servers Original architecture: In the server A Function needs to be called B , C M ...

Getting started with SpringBoot Create a SpringBoot project: file new project, click Spring Initializr on the left in the figure, and then just fill in the project name and other information. After creation, a startup class of SpringBoot project will be automatically produced: @SpringBootApplication public class SpringbootDemo01Application ...

As mentioned in previous posts, try to use starter related dependencies. Because these related dependencies will configure related classes according to the configuration file. For example, redis is integrated in Spring. In rapid development, Spring boot starter data redis dependency is recommended. It will configure redisTemplate and other rela ...

I Clarify the problems that need to be clarified The acyclic process of ordinary beans depends on the bean life cycleThe non cyclic dependency of aop proxy bean is the process of bean life cycleThe cycle of ordinary beans depends on the process of bean life cycleThe circulation of aop proxy bean depends on the process of bean life cycle It's ...

1. What is annotation driven When annotation is started, the form of annotation is used to replace xml configuration, which completely eliminates the complicated spring configuration file from the project and simplifies writing 2. Disadvantages of annotation driven In order to achieve the purpose of annotation driven, the original simpl ...

Spring IOC，DI Spring MVC process control from front end to back end Mybatis ORM framework Understanding of xml framework structure Explanation of each XML process and function General structure of the overall XML framework web.xml Configure the dispatcher servlet to access the entry path and distribute the processConfigure char ...

Controls the type of inversion Inversion of control (IOC) aims to provide a simpler mechanism to set the dependencies of components and manage them throughout the life cycle. Generally, control inversion can be divided into two subtypes: dependency injection (DI) and dependency lookup (DL). These subtypes can be further decomposed into the s ...

How does Spring Security store user data into the database? Up to now, we haven't connected to the database. In real projects, in most cases, we design our own permission database. However, Spring Security also provides us with a permission database designed by itself. Let's see what's going on first! Let's learn this simple one first, and the ...

preface As we all know, Java development is jokingly called spring development by the old oil subroutine apes, which shows the position of spring in Java development. If there is no spring framework, the code written by most people will be a shit. Spring MVC is a very important module among the seven modules of spring. MVC framework is a ful ...