Connecting Springboot application to Azure databricks - spring-boot

Question

I'm trying to connect SpringBoot Application to Azure Databricks.
Below is something I have tried....
application.properties
spring.datasource.url = jdbc:spark://adb-**********.*.azuredatabricks.net:**/default;transportMode=http;ssl=1;httpPath=sql/protocolv1/o/******/******-*****-abcd341
spring.datasource.username = username
spring.datasource.password = Generated Token
pom.xml
Below are some dependencies I'm using...
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_2.10</artifactId>
<version>1.5.2</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_2.10</artifactId>
<version>1.5.2</version>
</dependency>
<dependency>
<groupId>com.databricks</groupId>
<artifactId>spark-avro_2.10</artifactId>
<version>2.0.1</version>
</dependency>
I'm getting below error..
***************************
APPLICATION FAILED TO START
***************************
Description:
Cannot determine embedded database driver class for database type NONE
Action:
If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).
Suggest me if I'm missing any maven dependency.
Thanks in Advance..

Answer 1

To connect from the Spring Boot you need to use JDBC driver, not Spark jars (remove them - you don't need them). You can get JDBC driver as described in documentation, or very recently - directly via Maven using following coordinates:
<dependency>
<groupId>com.databricks</groupId>
<artifactId>databricks-jdbc</artifactId>
<version>2.6.25-1</version>
</dependency>
and then use standard JDBC APIs exposed by Spring. I have a simple example that uses JdbcTemplate to access data in Databricks - you just need to construct JDBC URL correctly:
String host = "";
String httpPath = "";
String token = "";
String jdbcUrl = "jdbc:databricks://" + host +
":443/default;transportMode=http;ssl=1;httpPath=" +
httpPath + ";AuthMech=3;UID=token;PWD=" + token;
and then just access data:
// define data source
SimpleDriverDataSource ds = new SimpleDriverDataSource();
ds.setDriver(new Driver());
ds.setUrl(jdbcUrl);
JdbcTemplate jdbcTemplate = new JdbcTemplate(ds);
// query data
List<Map<String, Object>> data = jdbcTemplate.queryForList(query);
for (Map<String, Object> row: data) {
....
}
P.S. You may omit username or at least set it to the token value...

Answer 2

Try adding the "spring.datasource.driverClassName" , and let me know if that helps you to proceed