com.mysql.jdbc.Driver not found in spark2 scala - mysql

Question

I am using Jupyter Notebook with Scala kernel, below is my code to import mysql table to a dataframe:
val sql="""select * from customer"""
val df_customer = spark.read
.format("jdbc")
.option("url", "jdbc:mysql://localhost:3306/ccfd")
.option("driver", "com.mysql.jdbc.Driver")
.option("dbtable", s"( $sql ) t")
.option("user", "root")
.option("password", "xxxxxxx")
.load()
Below is the error:
Name: java.lang.ClassNotFoundException
Message: com.mysql.jdbc.Driver
StackTrace: at scala.reflect.internal.util.AbstractFileClassLoader.findClass(AbstractFileClassLoader.scala:62)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.apache.spark.sql.execution.datasources.jdbc.DriverRegistry$.register(DriverRegistry.scala:45)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$6.apply(JDBCOptions.scala:79)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions$$anonfun$6.apply(JDBCOptions.scala:79)
at scala.Option.foreach(Option.scala:257)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.<init>(JDBCOptions.scala:79)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions.<init>(JDBCOptions.scala:35)
at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:34)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:340)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:239)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:227)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:164)
Can anyone share a working code snippet here? I am using Spark2, session named spark is ready when I start the kernel in a new notebook.
Thank you in advance.