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   in Spring + spring MVC environment, generally speaking, we have two schemes to implement Scheduled tasks. One is to use the @ Scheduled annotation of spring's own Scheduled task processor, and the other is to use the third-party framework Quartz. Spring Boot is derived from spring + spring MVC, so it naturally has the implementatio ...

Connected to python learning notes (2) 1, Object oriented Foundation 1. Object oriented understanding Object oriented is to regard programming as a thing. For the outside world, things are used directly, regardless of their internal situation. Programming is to set what things can do. Object oriented is used to simplify code 2. Clas ...

Speaking of AQS, we have to say that the classic ReentrantLock is the best embodiment of AQS However, we can briefly talk about AQS characteristics first What is AQS? Abstract queue synchronizer All request threads form a CLH queue. When a thread finishes executing lock When you unlock, your subsequent nodes will be activated. The executing ...

Although we all know that there are 26 design patterns, most of them stay at the conceptual level and are rarely encountered in real development. A large number of design patterns are used in Mybatis source code. Reading the source code and observing the application of design patterns in it can have a deeper understanding of design patterns. My ...

Hello,GO! package main // Define package name func main() { print("Hello,Go") } main function points ++No parameter, no return value++The main method must be in the main packagego run main.go can be executedIf the file is not called main Go, you need to go build and then go run Package declaration - package declaration Syntax form: p ...

Multithreading The difference between concurrency and parallelism: Concurrency: a single core CPU handles multiple things at the same time, Parallelism: multi-core CPU s process multiple things at the same time. 1. Four creation methods of multithreading Integrated Thread classImplement the Runable interfaceImplement Callable interfaceThre ...

There are many @ beans in the automatic configuration classes of SpringMvc. SpringBoot automatically configures some default properties of SpringMvc according to these classes. We can override this @ Bean to customize some of our own special things. Auto configuration class name: webmvcoautoconfiguration In most cases, SpringBoot marks m ...

Nacos is an important part of Spring Cloud Alibaba. It provides two important functions: service registration and discovery and unified configuration center.The service registration and discovery function has solved the function of the connection management and request forwarding of the caller and the service provider in the micro service clust ...

I quick start Download the package of gin: go get GitHub com/gin-gonic/gin The hello world written by gin is as follows: package main import "github.com/gin-gonic/gin" func main() { router := gin.Default() router.GET("/hello", func(context *gin.Context) { // Register a path handler context.Writer.WriteString("Hello!") }) ro ...

preface This article discusses the AQS interface provided in JDK and one of its implementation classes, ReentrantLock. The article is based on the book "the art of Java Concurrent Programming" and the video of dark horse Dark horse multithreading Take notes. 1. AQS 1. Concept Overview: the full name is AbstractQueuedSynch ...