Programmer Group

This time, we mainly talk about our IO blocking model. It's just not much, but we must understand that it's very important for us to understand netty later IO model elaboration IO model is to use what kind of channel to send and receive data. Java supports three kinds of network programming IO modes: BI ...

1 Preface In the previous chapter, we built the authorization authentication server and successfully returned the token. The default format of oauth2 is as follows: { "access_token": "86d17c41-4de9-470a-a637-0acb7237099d", "token_type": "bearer", "refresh_token": "fb255411-9535-47ad-9f7e-4 ...

How to understand object-oriented Abstract is the prerequisite of encapsulation, inheritance and polymorphism. Reasonable abstraction comes from reasonable analysis and understanding of business topics. Reasonable abstraction should be self consistent and easy to understand about the relationship betwee ...

Title: In the programming competition, there are six judges to score for the contestants, and the score range is 0-100. The final scoring rules of players are: (maximum score algorithm, minimum score algorithm, average value algorithm) Remove the highest score and the lowest score, The average of the other four scores is the final score of the ...

Getting Started with Spring Cloud - Hystrix Circuit Breaker (Hoxton version) Original ThinkWon Last released from December 29-27 15:25:21 Reading 680 Collections Released from December 29-27 15:25:21 Category Column: Spring Cloud Cop ...

1, Object class 1. Introduction to object class *The Object class is the parent class of all classes. If a class does not specify an inherited class, it inherits the Object. Any class directly or indirectly inherits from Object 2. Method of object class ① toString() * Source code public String toString() { return getCla ...

brief introduction As a new feature of java8, lambda expression is oriented to function programming, which makes the code more concise and improves the programming efficiency. As a developer, we should not only learn to use it, but also understand the operation principle behind it lambda general use ...

k8s builds a Manager component for the management of container sniffing worker, which is responsible for the management of the underlying sniffing worker, caches the current state of the container, and synchronizes the current state of the external container. Today we will analyze some of its core components 1. Implementation of Core Principles ...

order This paper focuses on the discovery group of artemis DiscoveryGroup activemq-artemis-2.11.0/artemis-core-client/src/main/java/org/apache/activemq/artemis/core/cluster/DiscoveryGroup.java public final class DiscoveryGroup implements ActiveMQComponent { private static final Logger logger = Logger.getLogger(DiscoveryGroup.class); pri ...

Learning objectives Master the concept of API and Web API Master the common way of calling API provided by browser Can develop common page interaction functions through API Be able to use search engine to solve problems 1. Web API Introduction to Web API The concept of API API (Application Prog ...