Ajax & JSP
Hi everybody
I've created a portlet, this portlet show some information, but I don't want to refresh the page. My portlet works separate to my portal, but when I add this portlet to deploy file, doesn't work, i click on the button and my page appears into div. Maybe don't understand, but I leave the code.
welcome.jsp and welcome2.jsp are in jsp file.
welcome.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Pagina de Indice</title>
</head>
<body>
<script>
var ajax;
function funcionCallback()
{
if( ajax.readyState == 4 )
{
if( ajax.status == 200 )
{
document.getElementById('salida').innerHTML = "<b>"+ajax.responseText+"</b>";
}
}
}
function recuperaResidencia()
{
var text = document.getElementById('entrada');
if( window.XMLHttpRequest ){
ajax = new XMLHttpRequest();
}else{
ajax = new ActiveXObject("Microsoft.XMLHTTP");
}
ajax.onreadystatechange = funcionCallback;
ajax.open( "GET", "welcome2.jsp?persona="+text.value, true );
ajax.send( "" );
}
</script>
<input type="text" id="entrada" size="77"/>
<input type="button" value="Consultar" onclick="recuperaResidencia()"/>
Lugar de residencia: <div id="salida"></div>
</body>
</html>
welcome2.jsp
<%
String persona = request.getParameter("persona");
if(persona==null){
out.print("Nulo");
}
else if( persona.equalsIgnoreCase("jhaky") )
{
out.print("peru");
}
else
{
out.print("PERSONA DESCONOCIDA");
}
%>
My portlet works out my portal
My portlet doesn't work into the portal and appears into a div
i hope you help me
If anybody knows another way to show information without refresh all the page, please let me know
thanks
