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Using mybatis reverse engineering, it is very convenient to automatically map with tables in the database, and generate mapper.xml and mapper interface. Here I use IDEA to demonstrate through maven. Step 1: configure the pom.xml fileThe corresponding shelf package is introduced. The emphasis of reverse engineering is on the mybat ...

Take notes for a long time. In this period of time, when doing government projects, the data entry system is basically imported through excel, and the data volume is large, many of which are also single table entry, so there are many general codes, such as controller,service layer, which can be generated by code, and a database batch adding int ...

Learning back-end fast food for all (3) - accessing database with MyBatis In the last section, we learned the JdbcTemplate to access the database, which is much more convenient than using the original JDBC. At least you don't have to deal with a lot of exceptions.But we can still use some frameworks to make the work less. The main choice is MyB ...

Many programmers who have known to write code for more than 10 years often find their code messy. How can you write code that makes your colleagues feel less messy? 1. Why should I write this article? Explain why you want to write this article before you start?In the Java world, MVC software architecture pattern is absolutely classical (PS: ...

Recently, a project of the company needs to connect two databases (A and b) for operation. Some modules query database a, and some modules query database B. therefore, the project background uses the spring MVC + mybatis + MySQL architecture. After two days of tossing, it is finally completed. Here, the modification process is recorded. Us ...

I. create the spring boot project 1.File->New->Project image.png 2. Select Spring Initializr, then select the default url and click [Next]: 2.jpg 3. Modify project information 3.jpg 4. Select the template of the project 4.jpg 5.jpg 5. Fill in Project name and project location, and then click Fin ...

III. load MapperScannerRegistrar The startup class code is as follows: package com.iwill.mybatis; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.ComponentScan; import or ...

Mybatis is an excellent persistence framework that supports customized SQL, stored procedures, and advanced mapping. Mybatis avoids almost all JDBC code and manual setting of parameters and getting result sets. This article introduces the steps of integrating Mybatis with Spring Boot. MYSQL is selected as the database Create a Spri ...

mybatis-dsc-generator Perfect integration of lombok, swagger code generation tools, so that you no longer worry about cumbersome comments and simple interface implementation: entity integration, format verification, swagger; dao auto add @ mapper, service auto comment and dependency; controller to achieve single table add / modify, and realize ...

The nature of data reading and writing No matter which ORM framework, the essence of data reading and writing is to encapsulate JDBC. Its main purpose is to simplify the development process of JDBC, so that developers pay more attention to business. The following is the core process of JDBC: Register JDBC driver (Class.forName("XXX") ...