HelloWorld Servlet (continued)

public void service(ServletRequest request, ServletResponse response)

throws ServletException, IOException

{

ServletOutputStream output = response.getOutputStream();

String fromWho = request.getParameter(“from");

response.setContentType(“text/html");

if (fromWho == null) {

output.println(“<p>Hello world!");

} else {

output.println(“<p>Hello world from <em>"

+ fromWho + “</em>");

}