Programming VIP

1. Parent <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.5.4</version> </parent> <!--To view the parent configuration of its parent:--> <parent> <groupId>org.springframework.boot</groupId> ...

In common business development, POST requests are often used in these places: when front-end forms are submitted, when interface code is invoked, and when the Postman test interface is used.Let's take a look: 1. When a front-end form is submitted application/x-www-form-urlencoded Form code: <form action="http://localhost:8888/task/" meth ...

① . Spring Cache overview ① . how to find the official documentation of Spring Cache (https://docs.spring.io/spring-framework/docs/5.2.17.BUILD-SNAPSHOT/spring-framework-reference/integration.html#cache) ② . Spring has defined org.springframework.cache.Cache and org.springframework.cache.Cache Manager interfaces since 3.1 to unify diffe ...

What is the difference between factory mode and DI container In fact, the most basic design idea of DI container bottom layer is based on factory mode. DI container is equivalent to a large factory class, which is responsible for creating objects in advance according to the configuration (which class objects to create and which other class obj ...

In the previous Blog, we implemented the first framework program of Spring MVC based on configuration and annotation respectively. Next, this Blog makes an in-depth study and Discussion on our Controller. Since it is a Controller, it must contain two topics: receiving requests and returning responses. We will make an in-depth study on these two ...

Druid is the best database connection pool in the Java language and provides powerful monitoring and extension capabilities. After comparing Druid with HikariCP, although HikariCP has a higher performance than Druid, Druid includes many dimensions of statistical and analytical functions, which is why everyone chooses t ...

In the last article, we implemented a simple IOC container. In this article, we will introduce the implementation of Spring IOC container. 1. Preparation In order to learn the source code implementation of Spring, we need to prepare the source code environment of Spring. At this time, we generally ...

Today, let's talk about the exception handling mechanism in Spring Security. In Spring Security's filter chain, the ExceptionTranslationFilter filter is specially used to handle exceptions. In the ExceptionTranslationFilter, we can see that exceptions are divided into two categories: authentication exceptions and authorization exceptions. The t ...

Basic usage steps Imagine a scenario where there is a business layer for saving and updating accounts and deleting them, but what do I do when I print logs for saving, updating, and so on? If we add code directly to the business tier, it's equivalent to adding code that doesn't matter.So here you can ...

Last article I talked with my friends about the parsing process of XML files in Spring source code. I could have continued to look down to load core classes, but SongGe still hopes to be a little slower. Since I have to learn to understand, I can learn from XML There are also some other classes and concepts involved in the process of file parsi ...