To change this license header, choose License Headers in Project Properties.
To change this template file, choose Tools | Templates
and open the template in the editor. */ package org.camp.servlet;

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; import java.util.Random;

import java.util.Date; import java.util.Random; import javax.servlet.RequestDispatcher; import org.camp.servlet.ResultData;

/** *

@author guest1Day */ public class FortuneTelling extends HttpServlet {

/**
- Processes requests for both HTTP GET and POST
- 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"); try (PrintWriter out = response.getWriter()) {

String luckList [] = {"Daikichi", "Nakakichi", "Kichi", "Hankichi", "Suekokichi", "Bad", "Small bad", "Half bad", "Bad", "Bad" , "Danger"}; Random rand = new Random(); //乱数所得 Integer index = rand.nextInt(luckList.length); out.print ("Your fortune today" + luckList [index]); /* TODO output your page here. You may use following sample code. / out.println(""); out.println(""); out.println(""); out.println("Servlet FortuneTelling");
out.println(""); out.println(""); out.println("

Servlet FortuneTelling at " + request.getContextPath() + "

"); out.println(""); out.println(""); ResultData data = new ResultData(); data.setD(new Date()); data.setLuck(luckList[index]); request.setAttribute("DATA",data); The (result) part of the line below will be displayed if the symbol cannot be found due to an error. Please point out that it is useless even if you try various things. RequestDispatcher rd =request.getRequestDispatcher(result); rd.forward(request,response);
} } // /* * Handles the HTTP GET 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>

}

[JAVA] JSP error display from Servlet

Servlet FortuneTelling at " + request.getContextPath() + "