title: "Cannot load connection class because of underlying exception"
body: <p>I create webpage using JSP and my server is Tomcat v7. My error as bellow: </p>
  
  <pre><code>com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Cannot load connection class because of underlying exception: 'java.lang.NumberFormatException: For input string: "3306dbname"'. 
  </code></pre>
  
  <p>I try to do it but still not.
  Please help me with this.
  Thank you in advance.</p>