Programming VIP

mybatis-config.xml system core configuration file The MyBatis configuration file contains settings and attribute information that deeply affect MyBatis behavior. The top-level structure of the configuration document is as follows: configurationpropertiessettingstypeAliasestypeHandlersobjectFactory (object factory)pluginsenvironments En ...

1, Example 1. Alias For a parameter, it is not necessary to declare an alias, but if the parameter involves null judgment such as if test, it is necessary to declare an alias, otherwise an error will occur dao Map<String,Object> getBidResult(String projectId); String getDicName(@Param("dicCode") String dicCode1); mapper.xml <sele ...

1, Introductory case MyBatis development preparation Build MyBatis development environment and realize the first case 1. Prepare with Mybatis download mybatis 2. Build MyBatis development environment 1) Create MySQL database and tables Database name ssm; Table name student Create table statement CREATE TABLE `student` ( `id` int(11 ...

Introduction to MyBatis Building SqlSessionFactory from XML Each MyBatis application is based on an instance of SSF (SqlSessionFactory), which can be obtained through SSF Builder. SSF Builder can build an SSF through XML configuration file or configuration class. It is very convenient to build SSF through XML files. It is recommended to use ...

It mainly explains the basic knowledge of MyBatis, and the content comes from C language Chinese network. MyBatis example Project preparation The DB uses Mysql, POM Dependency packages to be added to XML: <dependency>     <groupId>org.mybatis</groupId>     <artifactId>mybatis</artifactId>     <version ...

preface This paper is divided into two parts: the first part writes an introductory program with mybatis, and the second part removes mybatis from the introductory program and replaces it with a custom framework Tip: the following is the main content of this article 1, Introduction to Mybatis framework 1.1. Import tables and data ...

explain When you use mybatis or openFeign, you only define an interface class without an implementation class. You can inject the interface into the service and call the method return value. An interface has no implementation class. Why can it be instantiated and handed over to spring management. How is mybatis and OpenFeign implemented? Look ...

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 ...

Environment construction Create table and insert data CREATE TABLE `blog` ( `id` varchar(50) NOT NULL COMMENT 'Blog id', `title` varchar(100) NOT NULL COMMENT 'Blog title', `author` varchar(30) NOT NULL COMMENT 'Blogger', `create_time` datetime NOT NULL COMMENT 'Creation time', `views` int(30) NOT NULL COMMENT ...

All content is a video recording of madness teacher's station B MyBatisPlus Complete Tutorial B-Station Video for Crazy Java brief introduction MyBatis-Plus (opens new window) (MP) is an enhancement tool for MyBatis (opens new window). On the basis of MyBatis, only enhancements are made and no changes are made to simplify development and incr ...