Source Code : Get settings from ServletContext

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Get settings from ServletContext

 
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class WebAppProperties extends HttpServlet {
  public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException,
      IOException {
    resp.setContentType("text/html");
    PrintWriter out = resp.getWriter();
    ServletContext context = getServletContext();
    String displayName = context.getServletContextName();
    if (displayName == null) {
      displayName = "(no display-name element defined)";
    }

    out.println("<html>");
    out.println("<body>");
    out.println("<br>Name: " + displayName);
    out.println("<br>Context: " + req.getContextPath());

    out.println("<h2><center>");
    out.println("Initialization Parameters</center></h2>");
    out.println("<br>");

    out.println("<center><table>");

    Enumeration e = context.getInitParameterNames();

    while (e.hasMoreElements()) {
      String name = (String) e.nextElement();
      out.println("<tr>");
      out.println("<td>" + name + "</td>");
      out.println("<td>" + context.getInitParameter(name) + "</td>");
      out.println("</tr>");
    }
    out.println("</table></center>");

    out.println("</body>");
    out.println("</html>");
    out.flush();
  }
}

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