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Operation principle of SpringBoot Since I wrote the first SpringBoot program, I have touched the fish for a few days. Now I come back to study the operation principle of SpringBoot! 1. Dependent file pom Previously, SpringBoot created a Maven project, so the corresponding configuration file pom.xml must contain all the dependencies required ...

1. Getting started 1.1 import dependency All springboot projects must inherit spring boot starter parent <!-- All springboot All projects must be inherited spring-boot-starter-parent --> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> ...

This article has been included in the github repository, which is used to share Java related knowledge summary, including Java basics, MySQL, Spring Boot, MyBatis, Redis, RabbitMQ, computer network, data structure and algorithms, etc. Welcome to pr and star! GitHub address:https://github.com/Tyson0314/Java-learning If github is not accessib ...

1. What is sprig Spring is an open source framework., It was created by Rod Johson. It was created to understand the complexities that determine enterprise development Spring uses basic JavaBeans to do things that previously could only be done by EJB s. However, the use of Spring is not limited to server-side development. From the perspectiv ...

1. Introduction to springcloud 1.1 INTRODUCTION spring cloud is a collection of frameworks. Taking advantage of the development convenience of spring boot, it cleverly simplifies the development of distributed system infrastructure, such as service discovery and registration, configuration center, message bus, load balancing, circuit breaker, ...

Optional is also one of the new features of Java 8. It is used to handle the null pointer problem and can be used gracefully in the return and processing of the application query interface Impl. The official definition is: The Optional class is a null able container object. If the value exists, the isPresent() method will return true, and c ...

Twenty eight good people are like crisp people. They cut fools with swords at their waist. Although I don't see my head falling, I secretly teach you that your bone marrow is withered. The previous chapter briefly introduced the multi data source configuration Jpa(16). If you haven't seen it, Please watch the previous chapter In the work, i ...

Log frame Common log frames JUL, JCL, Jboss-logging, logback, log4j, log4j2, slf4j... Log facade (abstract layer of log): JCL (Jakarta common logging), slf4j (Simple Logging Facade for Java), JBoss loggingLog implementation: log4j, Jul (Java. Util. Logging), log4j2, logback Select a facade (abstract layer) at the top and an implementation a ...

Twenty eight good people are like crisp people. They cut fools with swords at their waist. Although I don't see my head falling, I secretly teach you that your bone marrow is withered. The previous chapter briefly introduced how to configure the jdbctemplate for multiple data sources (15). If you haven't seen it, Please watch the previous ch ...

Maven use Create Maven project and add dependency in pom <dependencies> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.5.6</version> </dependency> <dependency> <groupId>junit</group ...