package forms;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.ecs.*;
import org.apache.ecs.html.*;
/**
* A servlet to demonstrate the use of parameters in HTML forms.
* It also uses ECS to format the results.
*
* @version 1.0 2001/08/15
* @author Mike Gehard
*/
public class Parameters2 extends HttpServlet{
/**
* Handle POST request.
* 1) Reads all request parameters and prints them out to the screen
* 2) Use element construction set (ECS) to format results
*
* @param request the HTTPServletRequest associated with this servlet
* @param response the HTTPServletResponse associated with this servlet
* @throws ServletException
* @throws IOException
*
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
Table table = new Table(0); // border = 0
// create the HTML tree
Html html = new Html();
Head head = new Head();
Title title = new Title("Parameters with ECS");
Body body = new Body();
head.addElement(title);
body.addElement(table);
html.addElement(head);
html.addElement(body);
/* This gets replaced with the above code
out.println("");
out.println(" Parameters");
out.println("");
out.println("");
*/
Enumeration e = request.getParameterNames();
while (e.hasMoreElements()) {
//System.out.println("e.hasMoreElements() = true");
String name = (String) e.nextElement();
//System.out.println("Name= " + name);
String values[] = request.getParameterValues(name);
//System.out.println("values[] length = " + values.length);
if (values != null) {
for (int i = 0; i < values.length; i++) {
TR tr = new TR();
TD col1 = new TD();
TD col2 = new TD();
I it = new I();
Font font = new Font();
table.addElement(tr);
tr.addElement(col1);
tr.addElement(col2);
col1.addElement(it);
it.addElement(font);
font.setColor(HtmlColor.BLUE);
font.addElement(name);
col2.addElement(values[i]);
/*Replaced by the above code
out.println("| " + name + " | " +
values[i] + " |
");
*/
}
}
}
out.println(html);
}
/**
* Handle GET request.
* Delagates to doPost().
*
* @param request the HTTPServletRequest associated with this servlet
* @param response the HTTPServletResponse associated with this servlet
* @throws ServletException
* @throws IOException
*
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException{
// forward to doPost()
doPost(request, response);
}
}