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First, what is MyBatis? MyBatis is a state-of-the-art persistence framework that supports custom SQL, stored procedures, and advanced mapping. MyBatis eliminates almost all JDBC code and manually setting parameters and retrieving results. MyBatis can use simple XML or Annotations to configure and map primitives, mapping interfaces, and Java PO ...

I Clarify the problems that need to be clarified The acyclic process of ordinary beans depends on the bean life cycleThe non cyclic dependency of aop proxy bean is the process of bean life cycleThe cycle of ordinary beans depends on the process of bean life cycleThe circulation of aop proxy bean depends on the process of bean life cycle It's ...

1. What is annotation driven When annotation is started, the form of annotation is used to replace xml configuration, which completely eliminates the complicated spring configuration file from the project and simplifies writing 2. Disadvantages of annotation driven In order to achieve the purpose of annotation driven, the original simpl ...

1, Development preparation 1. Application service provider Application service provider process 2. Access mode There are three access methods: File preview, file editing and file creation. Take file preview as an example. File preview is applicable to the scene where the file already exists on the public network server. For example, acces ...

Spring IOC，DI Spring MVC process control from front end to back end Mybatis ORM framework Understanding of xml framework structure Explanation of each XML process and function General structure of the overall XML framework web.xml Configure the dispatcher servlet to access the entry path and distribute the processConfigure char ...

Welcome to my GitHub Here we classify and summarize all the original works of Xinchen (including supporting source code): https://github.com/zq2599/blog_demos Overview of this article This article is the sixth in the "Java extends Nginx" series, Above The five handlers form the basic framework of nginx clojure development. The ...

Sentinel rule persistence All sentinel rules are stored in memory, and all rules will be lost after restart. In the production environment, we must ensure the persistence of these rules to avoid loss. Rule management mode Whether rules can be persisted depends on the rule management mode. sentinel supports three rule management modes: ...

Authorization rules Authorization rules can judge and control the source of the requester. Authorization rules Basic rules Authorization rules can control the source of the caller in two ways: white list and blacklist. White list: callers whose source is in the white list are allowed to access Blacklist: callers whose origin is in t ...

In the previous article, we introduced the installation, deployment and basic concepts of Flink. Today, let's learn about DataStream API, one of the core of Flink. 01 distributed stream processing foundation In the figure above, we divide the whole code into three parts, namely, the basic model of distributed stream processing: SourceTrans ...

Xiaobai's big data journey (27) Java object-oriented advanced multithreading security and wake-up mechanism Last review In the last issue, we learned the concept of multithreading and the basic use of multithreading. This chapter explains the remaining knowledge points of multithreading, thread safety and solution, and locking mechanism. Aft ...