Using the JDBC framework to connect to a database with Springboot

Basic steps

Create a DataSource

Use DataSource Create a jdbctemplate

using jdbctemplate to complete SQL operations

Quick configuration of the JDBC connection in spring boot

Create a new configuration package a class one database configuration

use @Configuration to define a configuration Class A method that can have multiple @Bean annotations in this class. The object returned by the method is loaded into the container for use

automatically fill in and use the place where you use it Qualifier Find a corresponding jdbctemplatebean named "* * *"

Using the JDBC framework to connect to a database with Springboot