JAK W NETBEANS... ŻEBY WYŚWIETLAŁ ILOŚĆ WOLNEGO MIEJSCA D HD

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Data: 2009-05-16 15:13:48
Temat: JAK W NETBEANS... ŻEBY WYŚWIETLAŁ ILOŚĆ WOLNEGO MIEJSCA D HD
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INDEX.JSP:

Document : index
Created on : 2009-05-16, 16:25:56
Author : Student
--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">

<html>
<head>
<script type="text/javascript">
var req;

function validate() {

var idField = document.getElementById("userid");
var url = "validate?id=" + escape(idField.value);
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else if (window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
req.open("GET", url, true);
req.onreadystatechange = callback;
req.send(null);
}

function callback() {
if (req.readyState == 4) {
if (req.status == 200) {
var message = req.responseXML.getElementsByTagName("message")[0];
setMessage(message.childNodes[0].nodeValue);
}
}
}
function setMessage(message) {
var userMessageElement = document.getElementById("userIdMessage");
var messageText;
if (message == "invalid") {
userMessageElement.style.color = "red";
messageText = "Invalid User Id";
} else {
userMessageElement.style.color = "green";
messageText = "Valid User Id";
}
var messageBody = document.createTextNode(messageText);
if (userMessageElement.childNodes[0]) {
userMessageElement.replaceChild(messageBody,
userMessageElement.childNodes[0]);
} else {
userMessageElement.appendChild(messageBody);
}
}
</script>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h2>Hello World!</h2>
<INPUT type="text" size="20" id="userid" name="id"
onkeyup="validate();" >
<div id="userIdMessage"></div>

</body>
</html>

VALIDATE.JAVA:
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/

package serwlety;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
*
* @author Student
*/
public class validate extends HttpServlet {

/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</
code> methods.
* @param request servlet request
* @param response servlet response
*/

protected void processRequest(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {

String targetId = request.getParameter("id");
try{
if ((targetId != null) && !(targetId.trim().equals("Tom"))) {
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
response.getWriter().write("<message>");
response.getWriter().write("valid");
response.getWriter().write("</message>");

} else {
response.setContentType("text/xml");
response.setHeader("Cache-Control", "no-cache");
response.getWriter().write("<message>");
response.getWriter().write("invalid");
response.getWriter().write("</message>");
}
} finally {

}
}

// <editor-fold defaultstate="collapsed" desc="HttpServlet methods.
Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doGet(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
processRequest(request, response);
}

/**
* Handles the HTTP <code>POST</code> method.
* @param request servlet request
* @param response servlet response
*/
protected void doPost(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
processRequest(request, response);
}

/**
* Returns a short description of the servlet.
*/
public String getServletInfo() {
return "Short description";
}// </editor-fold>

}

---------- 16:11 ----------

Proszę o szybką pomoc. Problem jest banalny a od tego dużo zależy
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