/*
* calc.java
*
* Created on March 17, 2007, 4:42 PM
*/
package calc;
import java.io.*;
import java.net.*;
import java.util.Enumeration;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.swing.text.Element;
/**
*
* @author student
* @version
*/
public class calc extends HttpServlet {
/** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
* @param request servlet request
* @param response servlet response
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet calc</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet calc at " + request.getContextPath () + "</h1>");
out.println("1st servlet<br />");
out.println("</body>");
out.println("</html>");
out.close();
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/** Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// processRequest(request, response);
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet calc</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet calc at " + request.getContextPath () + "</h1>");
out.println("1st servlet<br />");
RequestDispatcher rd = request.getRequestDispatcher("/banner");
rd.include(request, response);
out.println("<form method=\"post\" action=\"calc\">" +
"<input type=\"text\" name=\"a\" id=\"a\" />" +
"+ <input type=\"text\" id=\"b\" name=\"b\" />" +
"<input type=\"submit\" id=\"wynik\" />" +
"</form>");
Enumeration paramy = request.getParameterNames();
while(paramy.hasMoreElements()) {
String ax = (String)paramy.nextElement();
out.println(request.getParameter(ax));
}
out.println("</body>");
out.println("</html>");
out.close();
}
/** Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// processRequest(request, response);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet calc</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet calc at " + request.getContextPath () + "</h1>");
out.println("1st servlet<br />");
String a = request.getParameter("a");
String b = request.getParameter("b");
RequestDispatcher rd = request.getRequestDispatcher("/banner");
rd.include(request, response);
out.println("<form method=\"post\" action=\"calc\">" +
"<input type=\"text\" name=\"a\" id=\"a\" value=\"" + a + "\" />" +
"+ <input type=\"text\" id=\"b\" name=\"b\" VALUE=\"" + b + "\"/>" +
"<input type=\"submit\" id=\"wynik\" />" +
"</form>");
try {
int wynik = Integer.parseInt(a) + Integer.parseInt(b);
out.println("<br />Wynik: " + wynik);
}
catch(NumberFormatException e) {
out.println("<h1>chyba cos ci sie pomerdalo. ktoras z podanych przez ciebie wartosci nie jest liczba :P</h1>");
}
Enumeration paramy = request.getParameterNames();
while(paramy.hasMoreElements()) {
String ax = (String)paramy.nextElement();
out.println(request.getParameter(ax));
}
out.println("</body>");
out.println("</html>");
out.close();
}
/** Returns a short description of the servlet.
*/
// public String getServletInfo() {
// return "Short description";
// }
// </editor-fold>
}