RE: Method Post and Get with TiniHttpServer

Dear Doc Gloumy - Here is a simple "GET" response method, to toggle two LEDs
in a servlet.

Essential, the "if" is (That is IF I understand your "if" question,
correctly!):

    if ("button1".equals(query)) {


...  THEN DO SOMETHING HERE ...

Best regards, (again) Kelly Smith

  /**
   * Responds to HTTP GET requests.
   *
   * @param request the HTTPServletRequest object
   * @param response the HttpServletResponse object
   *
   * @throws ServletException
   * @throws IOException
   */
  public void doGet(HttpServletRequest request, HttpServletResponse
response)
      throws ServletException, IOException
  {
    //The query string sent by the client tells which button was clicked on
the Web page.
    String query = request.getQueryString();

	// Initialize the LED states.
    boolean led1On; 		// DSTINIm400400/TStik400 board.
    boolean led1Toggled;
	led1Toggled=false;
	boolean led1On_TINI;	// DSTINI390 board.
	boolean led2On; 		// DSTINIm400400/TStik400 board.
    boolean led2Toggled;
	led2Toggled=false;

    // Read the current state of the LEDs (0=on, 1=off).
    // and toggle the LED named in the query string.

    if ("button1".equals(query)) {
		// 1.2 - Modified December 18, 2003 by Kelly Smith. Added Telnet "ON/OFF"
LED state.
		System.out.print("The Red Button 1 was clicked:");

	// Toggle Red LED 1.
	// A logic low turns the LED 1 on.
	led1On = toggle(led1); 		// DSTINIm400400/TStik400 board.
	// A logic low turns the LED 1 off.
	led1On = toggle(led1_TINI);	// DSTINI390 board.
	led1Toggled=true;
    } else {

	// Don't toggle Red LED 1.
	led1Toggled=false;
	led1On_TINI = (led1_TINI.readLatch() != 0);
    }
    if ("button2".equals(query)) {
		// 1.2 - Modified December 18, 2003 by Kelly Smith. Added Telnet "ON/OFF"
LED state.
		System.out.print("The Green Button 2 was clicked:");

	// Toggle Green LED 2.
	// A logic low turns the LED 2 on.
	led2On = toggle(led2); 		// DSTINIm400400/TStik400 board.
	led2Toggled=true;
    } else {

	// Don't toggle Green LED 2.
	led2Toggled=false;
    }

    // Set the images and text to match the current LEDs' 1 state.
    // If led1State is true, LED1 is off.
    String led1Image;
    String led1State;

	// Read the current LED1 hardware state and test the On/Off state.
	led1On = (led1.readLatch() == 0);

    if (led1On) {
		led1Image= "/red-led-on.gif";
		led1State = "ON";
	if (led1Toggled) {
		System.out.println(" ON");
    }
    else { }
    }
    else {
      led1Image = "/red-led-off.gif";
      led1State = "OFF";
	if (led1Toggled) {
		System.out.println(" OFF");
    }
    else { }
   }
    // Set the images and text to match the current LEDs' 2 state.
    // If led2State is false, LED2 is off.
    String led2Image;
    String led2State;

	// Read the current LED2 hardware state and test the On/Off state.
	led2On = (led2.readLatch() == 0);

    if (led2On) {
		led2Image= "/green-led-on.gif";
		led2State = "ON";
	if (led2Toggled) {
		System.out.println(" ON");
    }
    else { }
    }
    else {
		led2Image = "/green-led-off.gif";
		led2State = "OFF";
	if (led2Toggled) {
		System.out.println(" OFF");
    }
    else { }
	}
    // Return the Web page to the client.
    SendWebPage (response, led1Image, led2Image,
                 led1State, led2State);
  } //end doGet

  /**
   * Toggles the specified bitPort bit and returns the new state.
   *
   * @param bitPort a bit that controls an LED.
   */

  private static boolean toggle(BitPort bitPort) {
    if (bitPort.readLatch() == 0) {

      // If it's 0, set the bit to turn the LED off and return true.
      bitPort.set();
      return true;
    } else {

      // If it's 1, clear the bit to turn the LED on and return false.
      bitPort.clear();
      return false;
    }
  } // end toggle



-----Original Message-----
From: tini-admin-6tN4nzCoH/[email protected] [mailto:tini-admin-6tN4nzCoH/[email protected]]On Behalf Of
Doc Gloumy
Sent: Thursday, April 29, 2004 1:36 PM
To: tini-6tN4nzCoH/[email protected]
Subject: [TINI]Method Post and Get with TiniHttpServer


I want to pass data to a servlet, and I dot understand how I can use the
post and get method with TiniHttpServer, I use two servlet, one with the
form, and the other wich display data,

This is the first :

import javax.servlet.*;

import javax.servlet.http.*;

import java.io.*;

public class HelloServlet extends HttpServlet {

    public void service( ServletRequest request,ServletResponse
response) throws ServletException, IOException {

        response.setContentType( "text/html" );

        PrintWriter out = response.getWriter();

            out.println( "<FORM Method=\"GET\"
Action=\"http://10.10.10.81/servlet/HelloServletDeux\">" );

            out.println( "Nom :<INPUT type=text size=20 name=nom><BR>" );

            out.println( "Prénom :<INPUT type=text size=20
name=prenom><BR>" );

            out.println( "Age :<INPUT type=text size=2 name=age><BR>" );

            out.println( "<INPUT type=submit value=Envoyer></FORM>" );

    }

}


and the twice :

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

public class HelloServletDeux extends HttpServlet {
public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
      throws ServletException, IOException {

    response.setContentType("text/html");
    PrintWriter out = response.getWriter();

    out.println("<HTML>\n<BODY>\n" +
                "<H1>Recapitulatif des informations</H1>\n" +
                "<UL>\n" +
        "  <LI>Nom: "
                + request.getParameter("Nom") + "\n" +
                "  <LI>Prenom: "
                + request.getParameter("Prenom") + "\n" +
                "  <LI>Age: "
                + request.getParameter("Age") + "\n" +
                "</UL>\n" +
        "</BODY></HTML>");
  }
}


The compil is ok, and I arrive to display the html but the data are
"null", is there an good method to pass data enter two servlet ?

If not, can I put these two servlet in only one ? but i dont know how to
use the send button as a condition in a if structure

PS : Thanks to Kelly Smith and Shawn for their help with TiniHttpServer,
it run good now ;)

--
/**************************************************
GARCIA Patrick alias Doc Gloumy
BTS Informatique et Reseaux pour l'Industrie et les Services
Port : 06-89-51-54-01 Tel : 05-61-07-65-58
Trésorier, electricien,
Responsable logistique et materiel de PcRézoo
www.pcrezoo.net
[email protected]
ICQ : 94469133
MSN : [email protected]
**************************************************/




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