@Configuration
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class DBConfig {

    Logger logger = LoggerFactory.getLogger(DBConfig.class);
    @Bean
    JdbcTemplate jdbcTemplate() throws IllegalAccessException, InvocationTargetException, InstantiationException {
        logger.info("-----Configuring JDBCTemplate------");
        SnowflakeBasicDataSource dataSource = new SnowflakeBasicDataSource();
        dataSource.setServerName("<myserver>.snowflakecomputing.com");
        dataSource.setUser("<my_username>");
        dataSource.setPassword("<my_password>");
        dataSource.setWarehouse("DEMO_WH");
        dataSource.setDatabaseName("DEMO_DB");
        dataSource.setSchema("PUBLIC");
        return new JdbcTemplate(dataSource);
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.vaibhav</groupId>
    <artifactId>snowflake-1</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>snowflake-1</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>net.snowflake</groupId>
            <artifactId>snowflake-jdbc</artifactId>
            <version>3.6.21</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web-services</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>