Programming VIP

registerListeners() of Spring source code and publish subscribe modeHello, I'm classmate Tian, a programmer.Today, let's explain the registerListeners() method in the refresh() method, which is often referred to as the publish subscribe mode of Spring. This paper first gives an example of publish subscribe mode, then explains the principles of ...

Interviewer: what are your commonly used encryption algorithms? Encryption algorithms are usually divided into two kinds: symmetric encryption algorithm and asymmetric encryption algorithm. The symmetric encryption algorithm uses the same key in encryption and decryption; Asymmetric encryption algorithm uses different keys in encryption and ...

I preface This article discusses some simple things, mainly to understand what log portal is and how it is integrated II Log portal The Java Development Manual published by Ali has such a mandatory specification: The API in the logging system (Log4j, Logback) can not be directly used in the application, but the API in the logging framework ...

1, Introduction to SpringBoot Baidu Encyclopedia: Spring Boot is a new framework provided by pivot team. It is designed to simplify the initial construction and development process of new spring applications. The framework uses a specific way to configure, so that developers no longer need to define a templated configuration. In this way, ...

idea will build the springboot project in the next step First, create a new project Select name shoulder Language: java Type: Mavan First, import some common dependencies for testing After the project is built, the initial directory structure is as follows . idea is the configuration of idea, regardless We mainly write various codes in src ...

1. Transaction usage example in JDBC mode 1) Create data table structure CREATE TABLE user ( id int(11) NOT NULL auto increment, name varchar (255) default NULL , age int ( 11 ) default NULL , sex varchar (255 ) default NULL , PRIMARY KEY (id) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; 2) Create corresponding PO public class User ...

1. Can non Web applications use Spring Security for authorization?    so many knowledge points about Spring Security mentioned earlier are designed based on Web applications. So isn't it web applications that can't use Spring Security for authentication and authorization? Spring Security is ideal for scenarios where applications ...

SpringBoot-20-Mybatis code generation What is Mybatis? Mybatis is an open source project of apache ibatis, which was officially renamed mybatis in 2010. It is a Java persistence layer framework. The persistence layer framework provided by ibatis includes SqL Maps and Data Access Objects(Daos) Mybatis features: Mybatis is easy to learn: you ...

1, Transaction Basics 1. Transaction definition 2. Four characteristics of transaction Atomicity Transaction is the logical work unit of database. All operations included in transaction are either done or not done at all.Consistency The result of transaction execution must be to change the database from one consistency state to another. ...

Through the previous study, we have learned how the primary container of spring is initialized, but compared with the unfamiliar XmlBeanFactory, ApplicationContext is obviously more familiar to everyone. The spring advanced container ApplicationContext contains all the things in the primary container XmlBeanFactory. Based on the primary contain ...