Monday, April 8, 2013

How to return a List in Ajax using JSP

selectuser.js


var xmlHttp;

function showUser(str)
{
   
xmlHttp=GetXmlHttpObject()
   
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="getselect.jsp"
//alert(url=url+"?q="+str);
url=url+"?q="+str

url=url+"&sid="+Math.random()
   
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function stateChanged()
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 document.getElementById("txtHint").innerHTML=xmlHttp.responseText
 }
}
function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();

 }
catch (e)
 {

 //Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}
// JavaScript Document


index.jsp


<html>
<head>
<script src="selectuser.js"></script>
</head>

<body>
<center>

<form><br>
<br>
Select a ID: <select name="users"
    onchange="return showUser(this.value);">
    <option name=select>plz select</option>

    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
</select></form>
<p>
<div id="txtHint"><b></b></div>
</center>
</body>
</html>


getselect.jsp

<link href="css/stylesheet.css" rel="stylesheet" type="text/css">

<% String email=request.getParameter("q");%>

<html>
<body >
<center>
<fieldset style="width:350px;" > <legend >&nbsp;EMPLOYEE DETAILS&nbsp;</legend>
<table  width=320 border=0 cellspacing="1" cellpadding="0" >
<%int counter=1; %>
<%
if(email.equals("1")){%>
<tr class="headbgcolor" align="center"><td colspan="2" class="headtitle">EMPLOYEE DETAILS</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>ID</b></td><td class="texttitle" >1</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>NAME</b></td><td class="texttitle" >Himanshu</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>DOB</b></td><td class="texttitle" >1897</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>DOJ</b></td><td class="texttitle" >1987</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>LOCATION</b></td><td class="texttitle" >odisha</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>EMAIL</b></td><td class="texttitle" >swain.himansu@gmail.com</td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>MOBILE</b></td><td class="texttitle" >990909090</font></td></tr>
<tr class="bodybgcolor"><td class="texttitle" ><b>ADDRESS</b></td><td class="texttitle" >Odisha,India</td></tr>
<tr><td colspan=2><hr><b>END OF <%=counter%> TABLE</b><hr></td></tr>
<% counter++;}%>
</table>
</fieldset>

</font>
</center>
</body>
</html>

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