java code for Query Modifier

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);

}

}