我想使用jdbc在hive中创建表。这是我试过的密码，

import java.sql.SQLException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.DriverManager;

public class HiveClient {
private static String driverName = "com.mysql.jdbc.Driver";
public static void main(String[] args) {
Connection con=null;
  // Register driver and create driver instance
try {
      Class.forName(driverName);
      // get connection
      con = DriverManager.getConnection("jdbc:mysql://sandbox-hdp.hortonworks.com/hive?createDatabaseIfNotExist=true/userdb", "root", "dc123");

     // create statement
     Statement stmt = con.createStatement();

  // execute statement
  stmt.executeQuery("CREATE TABLE IF NOT EXISTS "
     +" employee ( eid int, name String, "
     +" salary String, destignation String)"
     +" COMMENT ‘Employee details’"
     +" ROW FORMAT DELIMITED"
     +" FIELDS TERMINATED BY ‘\t’"
     +" LINES TERMINATED BY ‘\n’"
     +" STORED AS TEXTFILE;");

  System.out.println(" Table employee created.");
  con.close();
}catch(Exception e){
System.out.println(e);
}

 }
}

此程序显示异常：

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver.

请帮我解决这个问题。