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In the actual project development work, we often encounter the need to do some scheduled tasks. Then, how is it implemented in Spring Boot? Add dependency In POM You only need to introduce the dependency of spring boot starter in the XML file: Code listing: spring boot scheduler / POM xml Understand the source code + VX: 445909108 Java code ...

Integration of Spring and mybatis and weaving of transactions Integrate Mybatis Create dependency We need junit, mysql driver, mybatis, spring webmvc, spring JDBC, aspectjweaver <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4 ...

1. JDBC template (concept and preparation) What is a JDBC Template? Spring framework encapsulates JDBC and uses JDBC Template to facilitate database operation preparation: Configure the database connection pool in the Spring configuration file: <!-- DruidDataSource dataSource = new DruidDataSource();--> <bean id="dataSource" clas ...

background In the project, the method provided by a third-party jar package cannot meet the requirements, and the jar package method needs to be enhanced. Spring's custom facet is used to enhance the method. The code is as follows: @Aspect @Component public class SendMessageAspect{ public SendMessageAspect(){ System.out.println(" ...

Forwarding official account: IT Ranch Tactical Analysis: There must be more than one timer in the actual development project, which needs to be used in many scenarios, and the problem brought by multiple timers is how to avoid the conflict of multiple timers Usage scenario: Our order service generally has an order to be paid, which has a ti ...

Java agents are divided into static agents and dynamic agents. Dynamic agent is divided into JDK dynamic agent and cglib dynamic agent. In terms of various performance tests, JDK is better than cglib. It is strongly recommended to master the agent mode, interview high-frequency questions, and use the concept of aspect oriented programming (A ...

summary Springboot changes the complicated configuration files of spring MVC into parametric configuration, which makes users feel great convenience. Therefore, if you only use the off the shelf spring boot function, there is not much technical requirement. Then, based on the principle of improving yourself and writing code as gracefully as po ...

SpringSecurity In this chapter, we will explain the spring security framework and write the library management system from scratch. Spring security is a very powerful permission verification framework developed based on spring. Its core functions include: Authentication (user login)Authorization (what can this user do)Attack protection (ag ...

Common logging frameworks java.util.logging: a Java Native logging framework introduced by JDK in version 1.4 Log4j: an open source project of Apache, which can control the destination of log information transmission to console, files, GUI components, etc. it can control the output format of each log. These can be flexibly configured through a ...

Spring cloud Alibaba (I) -- environment construction Introduction to spring cloud Alibaba springcloud The spring team has an open source microservice tool set to help us quickly build distributed systems (microservice systems) and provide netflix for spring organizations springcloud alibaba The open source microservice toolset of alibaba t ...