springboot+mybatis集成oracle

首先，需要在pom.xml文件中添加以下依赖：

<!-- Spring Boot MyBatis Oracle -->
<dependency>
    <groupId>com.oracle.database.jdbc</groupId>
    <artifactId>ojdbc8</artifactId>
    <version>18.3.0.0</version>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.1</version>
</dependency>

然后，在application.properties中配置Oracle数据库连接信息：

# Oracle 数据源配置
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.url=jdbc:oracle:thin:@//localhost:1521/orcl
spring.datasource.username=your_username
spring.datasource.password=your_password

接着，创建一个Mapper接口和对应的Mapper XML文件。例如，我们创建一个UserMapper接口，对应的Mapper XML文件为UserMapper.xml。

UserMapper接口：

public interface UserMapper {
    List<User> findAll();
}

UserMapper.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.example.mapper.UserMapper">
    <select id="findAll" resultType="com.example.entity.User">
        select * from user
    </select>
</mapper>

最后，在Spring Boot应用程序中使用Mapper接口即可：

@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;

    @Override
    public List<User> findAll() {
        return userMapper.findAll();
    }
}

以上就是Spring Boot和MyBatis集成Oracle数据库的步骤。