`create database universityapp DEFAULT CHARACTER SET utf8
  DEFAULT COLLATE utf8_general_ci;`

FilterRegistration.Dynamic filterEncoding = container.addFilter("characterEncodingFilter", CharacterEncodingFilter.class);
    filterEncoding.setInitParameter("encoding", "UTF-8");
    filterEncoding.setInitParameter("forceEncoding", "true");
    filterEncoding.addMappingForServletNames(null, true, "dispatcher");

jdbc.url = jdbc:mysql://localhost:3306/app?useUnicode=yes&characterEncoding=UTF-8

<Connector port="8080" protocol="HTTP/1.1"
       connectionTimeout="20000"
       redirectPort="8443"
       URIEncoding="UTF-8"/>
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" URIEncoding="UTF-8" />