Programming VIP

What is a service gatewayPreviously, we have learned about the basic springboot for building micro services, and we can also use springboot to build services. Next, let's talk about springcloud based on springboot. This spring cloud is not a specific technology. It refers to an ecosystem in microservices. For example, it includes gateway, regis ...

1 API 1.1 Api document download 1.API (Application Programming Interface) is the basic programming interface provided by Java. Everything that can be called is API. 2.Java language provides a large number of basic classes, so Oracle also provides corresponding API documents for these basic classes to tell developers how to use these classes ...

​What is a service gatewayPreviously, we have learned about the basic springboot for building micro services, and we can also use springboot to build services. Next, let's talk about springcloud based on springboot. This spring cloud is not a specific technology. It refers to an ecosystem in microservices. For example, it includes gateway, regi ...

1. Dynamic SQL 1.1 what is dynamic SQL? What is dynamic SQL? Dynamic SQL refers to generating different SQL statements according to different conditions. Usually, we operate some different SQL statements, which are directly changed in the code, which is very troublesome. It is very convenient to use dynamic SQL of Mybatis. Using t ...

1. IO flow 1.1 IO flow overview and classification 1. Introduction to IO flow IO: input / outputStream: it is an abstract concept, which is the general name of data transmission. In other words, the transmission of data between devices is called stream, and the essence of stream is data transmissionIO stream is used to deal with data tra ...

Students who participate in the blue bridge cup can pay attention to the blogger. The blogger is also preparing the Blue Bridge Cup and can brush questions with the blogger's blog. Blue Bridge Cup My AcWing The title and pictures are from the counseling class of group ab of Blue Bridge Cup C + + Prefix and When we want to quickly find ...

1, ProcessorSlot responsibility chain in SentinelIn the previous article, we introduced seven kinds of ProcessorSlot in sentinel, which are divided into two categories: one is for data statistics, and the other is for degradation. Sentinel's overall workflow is to use the responsibility chain mode to form a one-way linked list of all processors ...

1, Introduction 1. Concept Synchronization: synchronization refers to the sequential execution of the whole processing process. When each process is completed, the result is returned. Asynchrony: asynchronously invoking is just sending the called instruction, and the caller does not need to wait for the called method to be fully executed; ...

summary The last article talked about very common Set set . From the article, we know that Set is an ordered single column Set. Of course, it can solve many problems in life, but the elements in our Set are not all isolated single elements. Some of them will have a certain corresponding relationship (mapping relationship), such as the cor ...

1: Implementation of static agent Define interface /** * @description: * A factory that processes mobile phones * @date: 2022/2/12 * @author: linshujie */ public interface IPhoneFactory { /** * Customized design of mobile phone * @param design */ void makePhoneDesign(String design); } /** * @description: * A fac ...