TeachAnswerServlet.java

import java.io.IOException.;
import java.io.PrintWriter;
import java.util.Random;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(urlPatterns = {"/teachanswerservlet"})
public class TeachAnswerServlet extends HttpServlet {

protected void processRequest(HttpServletRequest request,

HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");

try (PrintWriter out = response.getWriter()) {
request.setCharacterEncoding("UTF-8");

String userAnswer = request.getParameter("userAnswer");
String[] formula = new String[2];
formula[0] = request.getParameter("formula1");
formula[1] = request.getParameter("formula2");
int answer = Integer.parseInt(formula[0]) + Integer.parseInt(formula[1]);

out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>答え</title>");
out.println("</head>");
out.println("<body>");

//ユーザーの回答と答えが同じなら正解のメッセージを表示する
if(Integer.parseInt(userAnswer) == answer){
out.println("<h1>あなたの回答は" + userAnswer + "！<br>大正解！！</h1>");
}else{
out.println("<h1>あなたの回答は" + userAnswer + "！<br>残念！答えは" + answer + "でした！</h1>");
}
out.println("</body>");
out.println("</html>");
}
}

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
processRequest(request, response);
}

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
processRequest(request, response);
}

@Override
public String getServletInfo() {
return "Short description";
}

}

まるるん備忘録

プログラミングやインフラ等、IT技術に関して気付いた事を書いているブログです。

TeachAnswerServlet.java