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SpringBoot auto configuration principle This section also analyzes the automatic configuration of SpringBoot from the source code and how to write the configuration file! 1. Review the operating principle As can be seen from the previous operation principle of SpringBoot, SpringBoot implements automatic configuration through the AutoConfigur ...

Integrated Junit: Example: (1) Import dependent <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13.2</version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework</groupId> <artifac ...

As we all know, the main feature of Spring is that it will no longer use the traditional method of creating objects, but put the steps of creating objects into the xml configuration file. Then, let's summarize three methods of configuring instances through xml: common constructor creation (no parameter constructor), static factory method creati ...

1. springboot features 1.1 dependency management The parent project does dependency management. The in the parent project collects almost all the jar packages required by the Spring framework for web development. Dependency management <parent> <groupId>org.springframework.boot</groupId> <artifactId&gt ...

Policy pattern: it defines algorithm families and encapsulates them separately so that they can be replaced with each other. This pattern makes the changes of the algorithm independent of the customers using the algorithm. The traditional policy mode is generally to create a public interface, define a public method, then create an entity class ...

1. What is the difference between synchronous and asynchronous? Synchronization means that when a function call is issued, the call will not return or continue to perform subsequent operations until the result is obtained. Asynchrony is relative to synchronization. When an asynchronous procedure call is issued, the caller can proceed with sub ...

In the previous articles, we basically described the implementation and source code analysis of spring security login authentication and authorization authentication. We are generally clear: SpringSecurity   Login authentication principle.If you customize the login authentication processProcess principle of authorization verification Tod ...

Common annotations in Spring are as follows.     1)@Component      This annotation can be used to describe beans in Spring, but it is a generalized concept that represents only one component (Bean) and can act at any level. When using, you only need to mark the annotation on the corresponding class.      ...

Write before: In the past, "XML" was the favorite of all major frameworks. It completed almost all the configurations in the framework in a loose coupling way. However, as the project became larger and larger, the content of "XML" became more and more complex and the maintenance cost became higher. Therefore, someone propo ...

The life cycle of Bean in Spring 1. What is Bean? All objects instantiated, assembled and managed by the Spring IoC container are called Bean objects. The Bean object itself can be regarded as a Pojo. Explanation on the official website: In Spring, the objects that form the backbone of your application and that are managed by the Spring ...