Cannot connect Azure Synapse Apache Spark to Synapse SQL
```
%%spark
import com.microsoft.spark.sqlanalytics.utils.Constants
import org.apache.spark.sql.SqlAnalyticsConnector._
df.write.
option(Constants.SERVER, "servername.database.windows.net").
option(Constants.USER, "xxxx").
option(Constants.PASSWORD, "xxxx").
sqlanalytics("databasename.dbo.TableName", Constants.INTERNAL)
```
I have an error:
`Error : "com.microsoft.sqlserver.jdbc.SQLServerException : Login failed for user '<token-identified principal>'`
我尝试按照MS文档中的说明进行操作，并且继续出现相同的错误。 https://docs.microsoft.com/pt-pt/azure/synapse-analytics/spark/synapse-spark-sql-pool-import-export#usage
有人知道该怎么做吗？