##web.xml:
<context-param>
<param-name>email</param-name>
<param-value>e@eee.com</param-value>
<context-param>##java:
String email= getServletContext().getInitParameter("email");##web.xml:
<context-param>
<param-name>email</param-name>
<param-value>e@eee.com</param-value>
<context-param>##java:
String email= getServletContext().getInitParameter("email");