ROOT/exo10/WEB-INF/src/hello/HelloWorld.java

   1 package hello;
   2
   3 // Import required java libraries
   4 import java.io.*;
   5 import javax.servlet.*;
   6 import javax.servlet.http.*;
   7 import javax.servlet.annotation.WebServlet;
   8
   9 @WebServlet(name="HelloWorld", urlPatterns={"/HelloWorld"})
  10 // Extend HttpServlet class
  11 public class HelloWorld extends HttpServlet {
  12
  13    private String message;
  14
  15    public void init() throws ServletException {
  16       // Do required initialization
  17       message = "Hello World";
  18    }
  19
  20    public void doGet(HttpServletRequest request, HttpServletResponse response)
  21       throws ServletException, IOException {
  22
  23       // Set response content type
  24       response.setContentType("text/html");
  25
  26       // Actual logic goes here.
  27       PrintWriter out = response.getWriter();
  28       out.println("<html>");
  29       out.println("<body>");
  30       out.println("<h1>" + message + "</h1>");
  31       out.println("</body>");
  32       out.println("</html>");
  33    }
  34
  35    public void destroy() {
  36       // do nothing.
  37    }
  38 }