Codul sursa pentru HelloWorldHttpServlet.java

import java.io.*;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.*;


public class HelloWorldHttpServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
	public void service (HttpServletRequest req, HttpServletResponse res) throws IOException {
		res.setContentType("text/plain");
		ServletOutputStream os = res.getOutputStream();
		os.write("Hello, world !".getBytes());
		os.flush();
	  }
	  public String getServletInfo() {
		    return "Hello World servlet";
	  }
}