SpringBoot3 学习笔记 （整合Mybatis-plus）

1、引入依赖，网址：https://mvnrepository.com/artifact/com.baomidou

找到mybatis-plus-boot-starter

这里最新版本为3.5.3.2，点击进去

2、在pom.xml中添加依赖，并确认依赖中已经有了mysql-connector-j的依赖

<!-- https://mvnrepository.com/artifact/com.baomidou/mybatis-plus-boot-starter -->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.5.3.2</version>
</dependency>

<!-- https://mvnrepository.com/artifact/com.mysql/mysql-connector-j -->
<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.1.0</version>
</dependency>

3、在application.yml文件中配置数据源

spring:
  datasource:
    url: jdbc:mysql://localhost:3306/boottest?useSSL=false&serverTimezone=UTC&useUnicode=true&characterEncoding=utf8
    username: root
    password: 123456

4、编写测试类

    @Resource   //不用要@Autowired
    DataSource dataSource;
    @Test
    void contextLoads() throws Exception {
        System.out.println(dataSource.getClass());
        System.out.println(dataSource.getConnection());
    }

输出结果为