package org.example;

import java.io.IOException;
import java.io.PrintWriter;

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("/hello")
public class HelloWorldServlet extends HttpServlet {

   static String PAGE_HEADER = "<html><head /><body>";

   static String PAGE_FOOTER = "</body></html>";

   @Override
   protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

      PrintWriter writer = resp.getWriter();
      writer.println(PAGE_HEADER);
      writer.println("<h1>Hello, world!</h1>");
      writer.println(PAGE_FOOTER);
      writer.close();
   }

}