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preface BiliBili watches videos and learns Java with crazy God. After watching spring and mybtis, if you don't organize your notes, you really forget before learning and after learning. You can follow the progress when learning. After that, you will have a hand without practicing This article is crazy God's notes + personal summary Thank ...

Main technical implementation: spring, springmvc, springboot, springboot security permission control, mybatis, session, jquery, md5, bootstart JS, tomcat, interceptor, etc. Main functions: login, user management, role authority management, menu management, department management, luggage cabinet management, user deposit management, record que ...

After the Producer sends a message, various accidents may occur in the process of message delivery, resulting in the Consumer being unable to receive the message correctly. RabbitMQ has also introduced some solutions to deal with this situation. 1. Message reliability delivery After the Producer sends a message, it will be delivered through t ...

Grain mall advanced level chapter Content directory: 1, ElasticSearch 1.1 introduction to elasticserch: Full text search is the most common requirement. Open source Elasticsearch is the first choice of full-text search engines. It can quickly store, search and analyze massive data. Wikipedia, Stack Overflow and Github all use it. The bo ...

Getting to know Spring Spring is a lightweight application framework with strong reusability and super adhesion. It provides IOC, AOP, ORM integration, WEB integration, etc The main core is: control inversion, face section IOC: it means to reverse resources to other threads. It is an object-oriented design idea AOP: aspect oriented programm ...

SpringCloudAlibaba Sentinel (flow control rules) What is Sentinel A lightweight cloud native microservice oriented traffic control component. Sentinel is mainly divided into two parts Core library: Java client, which does not depend on any framework, can run all Java runtime environments, as well as Dubbo / spring cloud and other framewor ...

Research significance: With the development of information technology and the rapid rise of Internet economy, online shopping has attracted more and more attention. The online wholesale market model of vegetables and fruits is bound to become a part of its trend. The fruit online wholesale system based on springboot} technology carries out t ...

1, Scope and lifecycle Scope The scope defines the scope of the bean. When defining a bean in the Spring configuration file, you can flexibly define the scope of the bean by declaring the scope configuration item. For example, when you want the Bean returned by the IOC container to be the same instance each time, you can set the scope to sing ...

Pass the spring official certification and find out what's going on with transaction communication Because of the epidemic situation in 2020, the company has been in a recession. Since October 2020, the company has only paid 80% of the salary. Since February this year, it has announced that it will only pay 60% of the salary temporarily, or ch ...

1, Environmental preparation Existing environment: mysql8.0.25 nacos resources Resource nameaddressexplainnacoshttps://github.com/alibaba/nacos/tagsService discovery, registry, configuration centerseata1.4.2https://seata.io/zh-cn/blog/download.htmlDistributed transaction Introduction to Seata 2, seata AT mode integration 1. nacos configur ...