添加依赖

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
</dependency>

包括连接池，驱动，spring-data-jpa

导入依赖

添加以后，点击导入即可

添加数据库的配置

spring:
  application:
    name: sob-blog
  datasource:
    url: jdbc:mysql://localhost:3306/sob_blog_system?characterEncoding=utf-8&useSSL=false
    driver-class-name: com.mysql.jdbc.Driver
    username: root
    password: 123456
server:
  port: 8080

注意问题

• 信息不要填错
• 如果是远程路径，或者是网络路径则填写网络路径
• 要记得开放端口
• 驱动不要错