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Development tool preparation Development tool: idea2017 up Dependency management: Maven 3 or above JDK: above 1.8 Creating a Spring project using Maven Select MavenCheck Create from archetypeSelect Maven archetype QuickStart Created successfully Creating a Spring project using Java Enterprise Default Version generally selects Java ...

kubernetes deploying persistent jenkins System environment: System version: CentOS 8.1 k8s version: v1.21.3 Containerd version: ctr containerd.io 1.4.3 jenkins version: 2.172 1, Set storage directory Persist Jenkins to storage. NFS network storage is used here to facilitate consistent escape data of application startup nodes in Kubernetes envi ...

SpringSecurity Safety should be considered at the beginningFunction permissions, access permissions and menu permissions all require certain rules to configure security rules Remember several classes: WebSecurityConfigurerAdapter: custom Security policyAuthenticationManagerBuilder: custom authentication policy@Enable WebSecurity: enable WebS ...

preface Through the mid-term report and exchange meeting, the author has a deep understanding of Subset business process; At the same time, I also have an understanding of some misunderstandings in the early stage. This article is to update Subset business analysis and correct misunderstandings. 1. Subset is not load balancing Bri ...

Today's article tells you a story and process of tracking down bugs. I have always believed that if something goes wrong, there must be demons, and so is the Bug in the program. I hope that through this Bug troubleshooting story, we can not only learn a series of knowledge points, but also learn how to solve problems and how to do things more ...

Important notes about spring MVC are in the following Baidu network disk connection. Welcome to learn together Link: https://pan.baidu.com/s/1E1V37apnF7TiFEnUSn82Tg Extraction code: ee3z Here are some easily forgotten points in my learning process to make another record for follow-up review Step 1: create maven project Step 2: set the packag ...

This article is excerpted from "design patterns should be learned this way" 1. Application scenario of intermediary mode In real life, the existence of intermediaries is indispensable. Without intermediaries, we can't communicate with distant friends. Each colleague object will reference each other. If each object interacts with mult ...

Singleton mode Singleton Pattern is a creation pattern. It involves a single class that is responsible for creating its own objects and ensuring that only one object is created. This class provides a unique way to access objects, which can be accessed directly without instantiating the objects of this class. Attention A singleton class can c ...

1, IOC container IOC underlying principle Concept and principle of IOC 1. What is IOC? (1) Control inversion, and leave the object creation and calling process between objects to Spring for management (2) Purpose of using IOC: to reduce coupling 2.IOC underlying principle (1) xml parsing, factory schema, reflection IOC operation The ...

1, Height and weight problems of different nationalities Write a program to simulate that Chinese and Americans are human; Beijingers are Chinese. In addition to the main class, there are four classes in the program: People, ChinaPeople, American People and Beijing People. The requirements are as follows: (1) The People class has protected ...