Programmer Group

1, Annotation development 1.1 comparison between annotations and xml xml: as a configuration file Advantages: it can extract content (decoupling), clear configuration, convenient positioning and easy to findDisadvantages: complicated configuration Note: xml development can be replaced Advantages: fast development speed and no cumbersom ...

Spring 1. Introduction 1.1. What is Spring Spring is a lightweight open source framework for layered Java SE/EE application full stack, with IoC (Inverse Of Control) and AOP (Aspect Oriented Programming) as the kernel. It provides many enterprise application technologies such as presentation layer SpringMVC, persistence layer spring JDB ...

architecture design We can divide the functional architecture of Mybatis into three layers: API interface layer: interface APIs provided for external use. Developers use these local APIs to manipulate the database. As soon as the interface layer receives the call request, it will call the data processing layer to complete the specific da ...

mybatis supports different databases. The specific access to the database is the driver jar package provided by different database manufacturers. For example: mysql-connector-java.jar of MySQL The jar s provided by different manufacturers are also implemented based on the interface in the java.sql package under the JDK For example, different d ...

1, Foreword This article is mainly based on the learning notes recorded in the official documents and the crazy God Mybatis tutorial. 2, CRUD In the previous article Mybatis learning notes (II): write the first mybatis program based on Maven project The select statement written is as follows: <?xml version="1.0" encoding="UTF-8" ?> &l ...

Preface: Hello, ladies and gentlemen, I'm running like a snail rz. Of course you can call me Snail Jun. I'm a beginner who has studied Java for more than half a year. At the same time, I have a great dream that I will become an excellent Java architect one day. This Mybatis Basic Learning series is used to record the whole process of ...

1, Mybatis quick start 1.1 introduction to mybatis MyBatis is an excellent persistence layer framework that supports common SQL queries, stored procedures and advanced mapping. MyBatis eliminates almost all the manual setting of JDBC code and parameters and the retrieval encapsulation of result sets. MyBatis can use simple XML or annotation ...

Resource download: https://download.csdn.net/download/weixin_44893902/45601768 Exercise point design: fuzzy query, delete, add 1, Language and environment Implementation language: JAVA language.Environment requirements: MyEclipse/Eclipse + Tomcat + MySql.Use technology: Jsp+Servlet+JavaBean or spring MVC + Spring + mybatis. 2, Realiz ...

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review In the previous article, we analyzed the type conversion, log adapter, class loading module and resolverutil (used to find qualified classes under the specified package), and also saw some design patterns used, such as adapter pattern and singleton pattern Next, go to a core of the basic support layer, DataSource DataSource In th ...