String driver = application. getIni tParameter ("driver") ;
String url = application.getInitParameter("url");
String user = application.getInitParameter("user");
String pass = application.getInitParameter("pass");

context-param>
param-name>driver/param-name>
param-value>com.mysql.jdbc.Driver/param-value>
/context-param>
context-param>
param-name>url/param-name>
param-value>jdbc:mysql://localhost:3306/j2ee/param-value>
/context-param>
context-param>
param-name>user/param-name>
param-value>root/param-value>
/context-param>
context-param>
param-name>pass/param-name>
param-value>32l47/param-value>
/context-param>