GenericDataSource and Postgresql

Question

I'm having a problem with compiling a connection pool class which I'm using from the Wrox book, "Beginning JSP Web Development". What should I do to subtitute with this class or how do I work around these errors. I'm guessing that I may be working with an obsolete api. It's been digging into me for a few hours, if not days.
Here are the details:
The DBInitServlet.java looks like this:
package scenario.db.util;
import javax.servlet.http.HttpServlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.sql.DataSource;
import java.sql.SQLException;
import java.sql.Connection;
import java.sql.DriverManager;
import org.apache.struts.util.GenericDataSource;
public class DBInitServlet extends HttpServlet {
     public void init(ServletConfig config) throws ServletException {
          super.init(config);
          try {
               GenericDataSource ds = new GenericDataSource();
               ds.setDriverClass(getInitParameter("driverClass"));
               ds.setUrl(getInitParameter("jdbcURL"));
               ds.setMinCount(Integer.parseInt(getInitParameter("minCount")));
               ds.setMaxCount(Integer.parseInt(getInitParameter("maxCount")));
               ds.setAutoCommit(false);
               ds.open();
               ConnectionPool.init(ds);
          } catch (SQLException e) {
            e.printStackTrace();
            throw new ServletException("Unable to Open datasource.");
}Here are the errors:
scenario\db\util\DBInitServlet.java:12 cannot resolve symbol
symbol   : class GenericDataSource
location : package util
import org.apache.struts.util.GenericDataSource;
                              ^
scenario\db\util\DBInitServlet.java:22 cannot resolve symbol
symbol   : class GenericDataSource
location : class scenario.db.util.DBInitServlet
                         GenericDataSource ds = new GenericDataSource();
                         ^
scenario\db\util\DBInitServlet.java:22 cannot resolve symbol
symbol   : class GenericDataSource
location : class scenario.db.util.DBInitServlet
                         GenericDataSource ds = new GenericDataSource();
                                                    ^3 errors
My web.xml has the following:
  <servlet>
       <servlet-name>dbinit/servlet-name>
       <servlet-class>scenario.db.util.DBInitServlet</servlet-class>
       <init-param>
          <param-name>driverClass</param-name>
          <param-value>org.postgresql.driver</param-value>
       </init-param>
       <init-param>
          <param-name>jdbcURL</param-name>
          <param-value>jdbc:postgresql://localhost:5432/rtm</param-value>
       </init-param>
       <init-param>
          <param-name>minCount</param-name>
          <param-value>1</param-value>
       </init-param>
       <init-param>
          <param-name>maxCount</param-name>
          <param-value>10</param-value>
       </init-param>
       <load-on-startup>3</load-on-startup>
  </servlet>What kind of adjustments should I make?
Thank you,
Warren

Answer 1

This problem is fixed with HS and DBLink.