Programming VIP

Official concept: AOP, that is, aspect oriented programming, can be said to be the supplement and improvement of OOP (Object Oriented Programming). OOP introduces the concepts of encapsulation, inheritance and polymorphism to establish an object hierarchy, which is used to simulate a set of public behaviors. However, OOP allows developers to de ...

catalogue @SpringBootApplication Spring Bean related @Autowired @Component,@Repository,@Service, @Controller @RestController @Scope @Configuration Handling common HTTP request types GET request POST request PUT request DELETE request PATCH request Front and rear end value transmission @PathVariable and @ RequestParam @RequestBod ...

Stream stream The new features of Java 8 are mainly Lambda expressions and streams. When streams and Lambda expressions are used together, the characteristics of stream declarative processing of data sets can make the code concise and easy to read What is flow A stream is a sequence of elements generated from a source that supports data proc ...

1, Configure the environment variable moven 2, MyBatis Getting started steps 1. Introduce dependency 2. Write entity user Dao User write field get set toString method Methods defined in UserDao 3. Write UserMapper in restore <mapper namespace="com.qcby.dao.UserDao"> <select id="findAll" resultType="com.qcby.entity.User"> ...

springboot integration jpa project entry level demo preface1, Create an empty boot project2, Prepare the database, mainly MySQL3, Import dependency4, Generate JPA entities5, JPA basic notes6, JPQL and EntityManager7, Configuration file8, demo package preface Simple basic entry level, no fragrance if you have a foundation! 1, Create an empty ...

Brief introduction to spring integration Mybatis This article focuses on mybatis spring 1.3.2!The core idea of integration: become the Bean of spring.Implementation of integration: spring Based FactoryBean. Mybatis spring 1.3.2 integration idea Mappercannerregister class is imported through @ mappercan.The mappercannerregister class implemen ...

1.SpringBoot integration task mechanism 1.1. Spring boot implements asynchronous methods Daily development involves many interactive responses between the interface and the back-end, which are not synchronous. Spring boot provides us with an annotation method to implement asynchronous methods. Make the request response of the front end and th ...

I summary What is RPC? Remote service callOfficial: the idea of requesting services from remote computer programs through the network without understanding the underlying network technologyA little more popular: without knowing the details of the call, the client calls an object that exists on the remote computer, just like calling an objec ...

Solve the problem that WebClient calls cannot be tracked in the Spring Cloud Gateway projectProblem descriptionSkywalking brings non intrusive distributed link collection to java applications through java agent. In the microservice architecture, as a business Gateway, Spring Cloud Gateway generally needs to customize the Filter and call other ...

Spring Boot starter We know that Spring Boot greatly simplifies the initial construction and development process of the project, which are completed through the starter provided by Spring Boot. Pinda general permission system is developed based on Spring Boot, and some basic modules are starters in essence, so we need to have a comprehensive a ...