Mình gặp lỗi StackOverFlowError khi start Tomcat 8, khi nhấn vào link để tới dòng lỗi thì câu lệnh là :
rd.forward(request, response);
Đây là class Servlet gặp lỗi của mình
package Servlets;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class RedirectServlet extends HttpServlet {
private final String LoginServlet = "LoginServlet";
private final String LoginPage = "login.html";
private final String SearchServlet = "SearchServlet";
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String url = "";
String button = request.getParameter("btAction");
try {
if (button != null) {
if (button.equals("Login")) {
url = LoginServlet;
} else if (button.equals("Search")) {
url = SearchServlet;
}
}else{
url = LoginPage;
}
} finally {
RequestDispatcher rd = request.getRequestDispatcher(url);
rd.forward(request, response);
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
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
Mình đã dò trên mạng nhưng cũng không giải quyết được vấn đề. Mong mọi người giúp đỡ