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ajax-jsp special characters like %,&

 
Greenhorn
Posts: 8
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Hi,
I have a form on one jsp, with a text box. The user inputs the value like "50%", after clicking a button i send this textbox value to the new jsp using AJAX.


In the second file, the request.getparameter("name") is getting failed for the "50%" or any string which includes "%".

Please tell me how to send these special characters from form controls to the backend DB through servlet or jsp.



file1: form

--------------------
<%@page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<%

request.setCharacterEncoding("UTF-8");
%>
<META http-equiv="Content-Type" content="application/x-www-form-urlencoded; charset=UTF-8">

<script language="javascript" charset="utf-8">
function ganeshme()
{
//alert(document.ganesh.meranam.value);
ajaxFunction(document.ganesh.meranam.value);
}

function ajaxFunction(f)
{
var xmlhttp;
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{
// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if(xmlhttp.readyState==4)
{
alert('return:'+xmlhttp.responseText);
}
}
var url="time.jsp";
var mera="&mera="+f;
url=url;

xmlhttp.open("POST",url,true);
xmlhttp.setRequestHeader("Content-Type","text/html;UTF-8");
xmlhttp.setRequestHeader("Accept","%");
xmlhttp.send(mera);
}

</script>
<form name="ganesh" >
<input type="text" name="meranam" />
<input type="button" value ="hit it" onclick="ganeshme()"/>
</form>

----------------------------------------


file2 form processing

--------------------------

<%@page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<%

String namee=request.getParameter("mera");
System.out.println("charater" +request.getCharacterEncoding());
System.out.println("charater content type: "+request.getContentType());
System.out.println("namee" +namee);
response.setContentType("text/html");
response.setHeader("Cache-Control", "no-cache");
response.getWriter().write(namee+new java.util.Date());
%>


------------------------------------



 
Author
Posts: 12617
IntelliJ IDE Ruby
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Please UseCodeTags when posting code or configuration. Unformatted code and configuration is very difficult to read. You can edit your post to include them by using the button.

The percent sign has special meaning; it's used to escape GET parameters. Requests containing special characters should be URL-encoded.
 
Greenhorn
Posts: 13
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you click follow link to study and solve the problem of yours,it may be helpful
http://servlets-jsp.blogspot.com/2010/02/ajax-autocomplete-issues-with-xml.html
 
Marshal
Posts: 67279
170
Mac Mac OS X IntelliJ IDE jQuery Java
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Pavan Kumar Reddy wrote:you click follow link to study and solve the problem of yours,it may be helpful
http://servlets-jsp.blogspot.com/2010/02/ajax-autocomplete-issues-with-xml.html


No, that is not the correct way to deal with the problem. The strings to be sent to the server must be URL-encoded, and not HTML-encoded.

The function encodeURIComponent() should be used.

A form submission normally handles this on your behalf, but when using raw Ajax, you must do it yourself.
 
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