Servlets Java

import javax.servlet.*;
import javax.servlet.http.*;
public class QueryModifier extends HttpServlet {
  public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, java.io.IOException {
    String requestUrl = request.getRequestURL().toString();
    String querystr = request.getQueryString();
    if (querystr != null) {
      querystr = querystr
          + "&inspector-name=Jen&inspector-email=Jenniferq@yahoo.com";
    } else {
      querystr = "inspector-name=Jen&inspector-email=Jenniferq@yahoo.com";
    }
    RequestDispatcher dispatcher = request
        .getRequestDispatcher("/viewPost.jsp?" + querystr);
    dispatcher.forward(request, response);
  }
  public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, java.io.IOException {
    doGet(request, response);
  }
}