How to use XMHTTP in jsp

Hello,
can any body tell me how to use the XMHTTP in jsp programming are servlet..what i know is XMLHTTP used in with java script functions..for connecting to servers without refrshing the page.can we use directly in jsp page.if so which APIs we have to use..provide me some help..
regards,

Thanks Steve for ur reply..
XMLHTTP is a microsoft related thing..How so? This code works with Firefox & IE6 on Tomcat 5:
<%
String aStr = request.getParameter("a");
String bStr = request.getParameter("b");
String cStr = "";
int a,b,c;
if (aStr != null && bStr != null) {
     a = Integer.parseInt(aStr);
     b = Integer.parseInt(bStr);
     c = a + b;
     cStr = ""+c;
} else {
     aStr = "";
     bStr = "";
String acc = request.getHeader("Accept");
if (acc!=null && acc.indexOf("message/x-jl-formresult")!=-1) {
   try { out.print(cStr.trim()); } catch (Exception e) { e.printStackTrace(); }
} else {
%>
<html>
     <head>
         <title>Add</title>
     </head>
     <body>
          <script>
               var xmlhttp=false;
                try {
                 xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                } catch (e) {
                 try {
                  xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                 } catch (E) {
                  xmlhttp = false;
               if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
                 xmlhttp = new XMLHttpRequest();
               function calc() {
                try {
                 frm=document.forms[0]
                 url="addbyxmlhttp.jsp?a="+frm.elements['a'].value+"&b="+frm.elements['b'].value
                 xmlhttp.open("GET",url,true);
                 xmlhttp.onreadystatechange=function() {
                  if (xmlhttp.readyState==4) {
                   document.forms[0].total.value=xmlhttp.responseText;
                xmlhttp.setRequestHeader('Accept','message/x-jl-formresult');
                xmlhttp.send(null);
                } catch(E) { alert (E.message); }
                return false
          </script>
          <form action="addbyxmlhttp.jsp" method="get" onsubmit="return calc();">
               <input type="text" name="a" value="<%=aStr%>"/> +
               <input type="text" name="b" value="<%=bStr%>"/> =
               <input type="text" name="total" value=""/>
               <input type=submit value="Calculate">
          </form>
     </body>
</html>
<%
%>That is a direct translation from one of the examples on the page I pointed to earlier.
do we have any
apis in java insteead of
var xmlhttp = new
ew ActiveXObject("Microsoft.XMLHTTP");
var xml_dom = new
new ActiveXObject("MSXML2.DOMDocument");
var xml_domTemp = new
new ActiveXObject("MSXML2.DOMDocument");
these things i want to use java related stuff..is it
possible..
regards,Those things are JAVASCRIPT!! Like I said, most of the work is done in javascript, not the server side stuf.. And the page I pointed you to answers that question.

Similar Messages

Help me!! How to use JavaScript with JSP ??

I am using JDeveloper and I created a screen in JSP which uses a bean for database connectivity and retriving info onto the page.
The page has a ListBox where list items are populated from the database.My requirement is
whenever the list is changed the page shuold be refreshed with the selected item info.
I tried to use 'JavaScript' for triggering the event with 'onChange' event of the ListBox.But the event is not getting invoked. I think JavaScript is not working with JSP.
Please help me with how to Use javaScript with JSP or any other alternative where I can meet my requirement.
I have one more question...I have gone through the JSP samples in OTN and I am trying do download the sample 'Travel servlet' which show list of countries...etc
I have also gone through the 'readme' but I don't know how to extract .jar file.
I would be great if you could help me in this.
Thanks!!
Geeta
null

We have a similar need. We have used Cold Fusion to display data from Our Oracle Database. We have a simple SElect Box in HTML populated with the oracle data. When someone selects say the State of Pennsylvania. then we have an On change event that runs a Javascript to go get all the cities in Pennsylvania.
Proble we are having is that inorder for the Javascript to work , we currently have to send all the valid data.
Do you know of any way to dynamically query the the Oracle database in Javascript

How to use EJB in JSP...urgent!!!

hello,
i am novice programmer in EJB.
i am using weblogic 6.1 ...
my problem is how to use EJB in jsp page.
my code is as follow..but its not displaying any result.
<%@ page import="javax.naming.InitialContext,
javax.naming.Context,
java.util.Properties,
firstEJB.First,
firstEJB.FirstHome"%>
<%
     long t1 = System.currentTimeMillis();
     System.out.println(t1);
     Properties props = new Properties();
     p.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.TengahInitialContextFactory");
     props.put(Context.PROVIDER_URL, "localhost:7001");
     Context ctx = new InitialContext(props);
     FirstHome home = (FirstHome)ctx.lookup("FirstEJB");
     First bean = home.create();
     String time = bean.getTime();
     bean.remove();
     ctx.close();
     long t2 = System.currentTimeMillis();
%>
<html>
     <head>
          <style>p { font-family:Verdana;font-size:12px; }</style>
     </head>
     <body>
          <p>Message received from bean = "<%= time %>".<br>Time taken :
          <%= (t2 - t1) %> ms.</p>
     </body>
</html>
please tell me the solution.

Hi, I don't know if it may be the cuase of your problems, but you should narrow the Object obtained doing the lookup, like this:
FirstHome home = (FirstHome) PortableRemoteObject.narrow(ctx.lookup("FirstEJB"), FirstHome.class);

How to use taglibs in JSP for Database access

Hi
Could any one please tell me how to use taglibs in JSP for Database access
with regrds
Jojo

This is a sample how to connect to a MySQL database with JSTL 1.0:
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<%@ taglib uri="http://java.sun.com/jstl/sql" prefix="sql" %>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>JSTL MySQL</title>
<link href="styles.css" rel="stylesheet" type="text/css" />
</head>
<body>
<c:catch var="e">
<sql:setDataSource var="datasource" url="jdbc:mysql://Your_Server_Name_Here/You_Schema_Here"
                       user="Your_Username_Here" password="Your_Password_Here"
                       driver="com.mysql.jdbc.Driver"/>
<c:out value="datasource= ${datasource}, Class = ${driver.class}"/>
<br />
<br />
<sql:query var="deejays" dataSource="${datasource}">SELECT * FROM Your_Table_Name_Here</sql:query>
<table>
<%-- Get the column names for the header of the table --%>
<c:forEach var="columnName" items="${deejays.columnNames}"><th><c:out value="${columnName}"/></th></c:forEach>
<tbody>
<%-- Get the value of each column while iterating over rows --%>
<c:forEach var="row" items="${deejays.rows}">
<tr><c:forEach var="column" items="${row}">
        <td><c:out value="${column.value}"/></td>
      </c:forEach>
</tr>
</c:forEach>
</tbody>
</table>
</c:catch>
<br />
<br />
<c:if test="${e!=null}"><span class="error">Error</span>�
<c:out value="${e}" />
</c:if>
</body>
</html>And this thread might help you:
http://forum.java.sun.com/thread.jspa?threadID=639471&tstart=44

How to use JOptionPane in jsp, instead of javascript message alert box?

HI,
How to use JOptionPane in jsp,
instead of javascript "message alert box"?
I hate javascript,
I'd like to only use java in jsp. don't use javascript.
javascript is client side,
jsp is server side. i know that.
how to... instead of javascript box?
how to use ... message box in webpage?
don't use applet,,,, don't use javascript,,,
hm...zzzZzz
I hate javascript..T.T
<SCRIPT language=JavaScript>
alert("hate javascript");
</SCRIPT>
===>>>>
In this way,,
JOptionPane.showOptionDialog(null,"I love java")
I'd like to only use jsp and java and html...in webpage.
don't use javascript....
Why? don't sun provide message box in jsp, instead of javascrip box?
Why?
Edited by: seong-ki on Nov 4, 2007 8:38 PM

Drugs are bad, m'kay?

How to use cookies in jsp

Hi all,
I'm new to jsp, please let me know how to use cookies with jsp.
I have three web applications, in run time I have to switch from one application to another application based on single login page. I have taught cookies are one of the solution. But while I'm googling I unable to get such a good material.
please give some examples,
Thanks in advance.
achchayya

Read a cookie in jsp
HttpSession session = request.getSession();
Cookie cookie_session = getCookie(request, "COOKIENAME");
          if (cookie_session == null) {
               sesID = session.getId();
          } else {
               sesID = cookie_session.getValue();
          }or
get all cookie in the browser
This gets all the cookies and according to the cookie name given u can get the cookie value
Cookie[] cookies = request.getCookies();
          if (cookies != null) {
               for (int i = 0; i < cookies.length; i++) {
                    if (cookies.getName().equals(cookieName))
                         return cookies[i];
               }but i am not sure if this works for ur requirement try and see

How to use threads in JSP???

hello
i want to use threads with JSP.
i want to write a jsp page which will
start 2 different threads. the 1st thread should just display a message and the second page should redirect this page to another jsp page.
till the redirection is goin on, the message should be displayed in the browser from the 1st thread.
i dont know actually how to use threads in JSP by implementing the Runnable insterface, if not m then how do i do it ??
thanx
Kamal Jai

Why do you want to use threads to do this ??
If you write a message and do a redirection, the message will be displayed until the other page will be loaded into the browser...
I already launched a thread from a JSP but it was for a four hour process where the user can close his browser windows.

How to use datagrid in jsp ?

Hi All ,
Can any body let me know , how to use datagrid in jsp pages .I have downloaded the taglibs-datagrid.jar file and taglibs-datagrid.tld. I have saved the .jar File in the WEB-INF/lib and .tld to the WEB-INF directories.
I wrote a program that is getting a collection from the request and i just want to display the objects in the datagrid.Please help me out of this problem.It's better to explain with example. Waiting for a response.
Regards,
Rakesh

Why do you want to use threads to do this ??
If you write a message and do a redirection, the message will be displayed until the other page will be loaded into the browser...
I already launched a thread from a JSP but it was for a four hour process where the user can close his browser windows.

How to use chart in jsp by using MS Acess Db

hii
My application is to generate the report using the chart with the help of MS Acess
i heard abt the JFreeChart . I downloaded it but i dont know how to link and use it in my application
plz help me.....
Thank u in advance

I downloaded it but i dont know how to link and use it in my application I'm sure they provide some examples how to use it.
Look at them and try to understand how a JFreeChart is used.
When you have a concrete question about JSPs an JSTL you may come back and ask again.
If you have questions about JFreeChart ask them in the JFreeChart Forum.
andi

How To Use EJB in JSP

I've used beans in JSP.. but how to use EJB's in beans ??
EJB's are deployed in Oracle 8i
Please Help
Thank You.

Please find the answer in this HOWTO:
http://technet.oracle.com:89/ubb/Forum2/HTML/006404.html
HOWTO's are archived on the JDeveloper Documentation page:
http://technet.oracle.com/docs/products/jdev/listing.htm (Click on Documentation Tab)
Thanks,
-Roel.

How can use interface in JSP?

hi! friends i have one dought in JSP? it's possible interface in JSP? how?
waiting for ur reply!

hi
i think u can not use interface in JSP but u can extend a class which implements an interface

How to use EL in JSP

Hi,
I am trying to use EL in JSP,as EL syntax is ${first.secondvalue},but whenever i write this in my program and i run it,it is showing like this only not the value which it has to show.
I think that EL is not being enabled in my jsp.
I write <jsp-property-tag> in web.xml (DD)to enable it,but still it is not being enabled.
So help me so that I can run EL in my JSP page.
BR//
Anubhav Gulati

Google is your friend, so search on Google for Tomcat 6.0 and it will show you were you can get it from.
Take a look at the Apache Tomcat Version Chart here:
http://tomcat.apache.org/whichversion.html
Servlet 2.5/ JSP 2.1 -------------- Tomcat 6.0.10
Servlet 2.4/ JSP 2.0 -------------- Tomcat 5.5.23
Since you want Servlet 2.4 and JSP 2.0 which are required for JSTL 1.1, you could get Tomcat 5.5.x , instead of Tomcat 6.0.x
Although I don't know if Tomcat 6 is backwards compatible with Servlet 2.4 and JSP 2.0 , if it is then it's cool to get Tomcat 6.x
web.xml - Servlet 2.4 Version
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
      xmlns="http://java.sun.com/xml/ns/j2ee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
</web-app>-----------------------------------------------------
web.xml Servlet 2.5 version is different
<?xml version="1.0"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" version="2.5">
</web-app>

How to use Templates in JSP.

Hi,
is any body knows how to apply templates In JSP technology.
I was wondering if some can give some example or link to a working Example
Thanks in Advance.

Hi ,
Try this URL.
http://www.javaworld.com/javaworld/jw-09-2000/jw-0915-jspweb.html
OLabora.

How to use SOAP with JSP (New to SOAP)

Hi,
i had a sch assignment(a set of JSPs)............anyone know how i can go about using soap for the encoding of data ? cos i had read up some books but i'm not sure how to go about implementing it !!!!! Anyone can help me?
Regards,
khim

Hey,
Just trying to understand the assignment objective:
You have a SOAP message or some web-service that replies with SOAP messages?
You have been asked to write a JSP that (queries this web-service and) retrieves the SOAP encoded data and transform it into XHTML (by whatever method you want) using XSLT?
Is this the situation?
If it is you will need to get the DTD or XSD of the SOAP message you will be displaying. This will tell you what elements to expect, what attributes they have and their sequencing.
Then your problem is just the XSL style sheet. Here is a link if you do not kow much about XSL:
http://www.w3schools.com/xsl/default.asp
To perform the transform you can either use JSTL tags or you can use a Bean... I would suggest the JSTL tags.
I hope the advice is not too late.
Warm regards,
Darren

How to use class in JSP page ? In java works in JSP not...

Hello developers,
I need check if URL exists.. i use this code in java.. it works fine..
import java.net.*;
import java.io.*;
public class Check {
public static void main(String s[]) {
    System.out.println(exists("http://www.google.com"));
    System.out.println(exists("http://www.thisURLdoesntexis.com"));
static boolean exists(String URLName){
try {
    HttpURLConnection.setFollowRedirects(false);
    // note : you may also need
    //        HttpURLConnection.setInstanceFollowRedirects(false)
    HttpURLConnection con =
       (HttpURLConnection) new URL(URLName).openConnection();
    con.setRequestMethod("HEAD");
    return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
catch (Exception e) {
       e.printStackTrace();
       return false;
}in java all works fine.. it shows
TRUE
FALSE
but i have no idea how can i implement this java code to my check.jsp page..
i tried something like this..
<%@ page import="java.io.*" %>
<%@ page import ="java.net.*" %>
<BODY>
<%
static boolean exists(String URLName){
try {
    HttpURLConnection.setFollowRedirects(false);
    // note : you may also need
    //        HttpURLConnection.setInstanceFollowRedirects(false)
    HttpURLConnection con =
       (HttpURLConnection) new URL(URLName).openConnection();
    con.setRequestMethod("HEAD");
    return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
catch (Exception e) {
       e.printStackTrace();
       return false;
String a="http://www.google.com";
%>
<%= exists(a)%>and i want to see in my jsp page the result.. it means that JSP page shows
TRUE
Thanks in advance,

Hi there,
One solution is to use JavaBeans and call the methods for the JavaBean from the JSP page.
Suppose you have a JavaBean called TestConnectionBean as follows:
package test22;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.IOException;
Set the testUrl before checking if connection exists.
public class TestConnectionBean {
    String testUrl;
    boolean connectionExists;
    public TestConnectionBean() {
    public String getTestUrl() {
        return testUrl;
    public void setTestUrl(String testUrl) {
        this.testUrl = testUrl;
    public boolean getConnectionExists() throws IOException, MalformedURLException {
        HttpURLConnection.setFollowRedirects(false);
        // note : you may also need
        //        HttpURLConnection.setInstanceFollowRedirects(false)
        HttpURLConnection con = null;
        con = (HttpURLConnection) new URL(this.testUrl).openConnection();
        con.setRequestMethod("HEAD");
        return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
    public void setConnectionExists(boolean connectionExists) {
        this.connectionExists = connectionExists;
}Then you can create a JSP page like this:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head><title></title></head>
<body>
<jsp:useBean id="testConnectionBean" class="test22.TestConnectionBean"/>
<jsp:setProperty name="testConnectionBean" property="testUrl" value="http://www.google.com" />
<br/><br/>
Does the connection exist for http://www.google.com : <jsp:getProperty name="testConnectionBean" property="connectionExists"/>
<br/><br/>
<jsp:setProperty name="testConnectionBean" property="testUrl" value="http://www.thisURLdoesntexis.com" />
<br/><br/>
<%-- The following will give an exception : java.net.UnknownHostException: www.thisURLdoesntexis.com since the URL doesn't exist.
--%>
<%--
Does the connection exist for http://www.thisURLdoesntexis.com : <jsp:getProperty name="testConnectionBean" property="connectionExists"/>
--%>
</body>
</html>The output you see looks like:
Does the connection exist for http://www.google.com : true
I think it is better to handle the exceptions in the JavaBean itself, so now yyou can change the method signature of getConnectionExists , remove all exceptions from method signature but handle them with a try/catch inside the method itself.

How to use XMHTTP in jsp

Similar Messages

Maybe you are looking for