what happens to the html codes written inside the servlet program

Question

I would like to know what happens to the html codes written inside the servlet? What is the need of writing like this?

Sample code:

public void doGet(HttpServletRequest request,HttpServletResponse response)throws ServletException, IOException
{   
    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    String title = "Using GET Method to Read Form Data";
    out.println("<html>"<head><title>"Welcome"</title></head>\n" +
                "<body><p>Welcome to servlet</p></body></html>");
}

Basically it generates whatever Html you write in there (if you do it right). Personally, I make .jsp pages for my Html, it gives me a better overview of things. — Victoria S., Dec 04 '15 at 10:46
@VictoriaS. Is this similar to creating an html page , rather than fetching a html page that is already defined in server? — Akhil Mathew, Dec 04 '15 at 10:52

Arnaud · Answer 1 · 2015-12-04T11:12:36.570

0

An HTML page is nothing else than plain text following HTML syntax.

Hence, anything you give as a response to a HTTP request, being plain text following HTML syntax (like your String does), IS an HTML page, provided you tell the caller what is the content type of the response :

response.setContentType("text/html");

edited Dec 04 '15 at 11:12

answered Dec 04 '15 at 11:04

Arnaud

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score 0 · Accepted Answer · edited May 23 '17 at 12:23

The HTML code written in the servlet goes to the Client through the Container (or through web server talking with the Container) which is responsible to send a response back to the Client (browser) that, in turn, will render the HTML to the user.

Here you will find a nice explanation of what is going on behind the scenes: How do servlets work? Instantiation, sessions, shared variables and multithreading

what happens to the html codes written inside the servlet program

2 Answers2