content: package com.alibaba.druid.test;
  
  import com.alibaba.druid.pool.DruidDataSource;
  import com.alibaba.druid.pool.DruidPooledConnection;
  import junit.framework.TestCase;
  
  /**
   * Created by wenshao on 10/12/2016.
   */
  public class RaspberryPiMySqlTest extends TestCase {
      private DruidDataSource dataSource;
  
      protected void setUp() throws Exception {
          dataSource = new DruidDataSource();
          dataSource.setUrl("jdbc:mysql://raspberrypi_mysql:3306/druid_test_db?allowMultiQueries=true");
          dataSource.setUsername("druid_test");
          dataSource.setPassword("druid_test");
          dataSource.setValidationQuery("SELECT 1");
          dataSource.setTestOnBorrow(true);
          dataSource.setTestWhileIdle(true);
          dataSource.setInitVariants(true);
          dataSource.setInitGlobalVariants(true);
      }
  
      protected void tearDown() throws Exception {
          dataSource.close();
      }
  
      public void test_mysql() throws Exception {
          DruidPooledConnection connection = dataSource.getConnection();
  
          System.out.println("variables : " + connection.getVariables());
          System.out.println("gloabl variables : " + connection.getGloablVariables());
  
          connection.close();
      }
  }
  