Czy serwlet może wywołać sam siebie? Bo próbuje zmieniać treść strony zależnie od języka wybranego przez usera, ale nie działa... Może ktoś pomoże?
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class Serwlet
*/
public class Lab62 extends HttpServlet {
private static final long serialVersionUID = 1L;
private PrintWriter out;
/**
* @see HttpServlet#HttpServlet()
*/
public Lab62() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html; charset=UTF-8");
response.setHeader("Pragma","no-cache");
response.setHeader("Cache-Control","no-cache");
out = response.getWriter();
int width = 400;
int height = 400;
String language = request.getParameter("language");
String[] polski = {"Gra w pana", "Applet do gry w pana"};
String[] angielski = {"Game in Pan", "Applet for game in Pan"};
String[] tablica = new String[2];
if (language!=null){
if (language.equalsIgnoreCase("pl")){
tablica=polski;
}
else if (language.equalsIgnoreCase("en")){
tablica=angielski;
}
}
else {
tablica[0]="tytul okna";
tablica[1]="tytul gry";
}
out.println("<html>\n <head>");
out.println("<title>"+tablica[0]+"</title>");
out.println("</head>");
out.println("<body bgcolor=\"white\" topmargin=\"10\">");
out.println("<b>"+tablica[1]+"</b>");
out.println("<hr />");
out.println("zmien jezyk");
out.println("<form method=\"POST\" action=\"Lab62.htm\"");
out.println("<select name=\"language\" >");
out.println("<option value=\"pl\" selected>polski</option>");
out.println("<option value=\"en\">english</option>");
out.println("</select></td>");
out.println("<button type=\"submit\">wyslij</button>");
out.println("</form>");
out.println("<APPLET NAME=\"User\" CODE=\"User\" WIDTH=\""+width+"\" HEIGHT=\""+height+"\">");
out.println("<param name=language value=\"" + language + "\">");
out.println();
out.println("<p>Twoja przegladarka nie obsluguje apletow</p>");
out.println("<p><a href=\"j2re-1_4_1_02-windows-i586-i.exe\">Pobierz Java Runtime Engine 1.4.1.02</a></p>");
out.println("</applet>");
out.println("<hr />");
out.println("</body>");
out.println("</html>");
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
}