I don't have an answer to ClassCastException problem, but you could
probably make life easier on yourself if you used:
String sn = req.getParameter("SN");
All the servlet engines I've used (JRun, ServletExec, Tomcat) will
parse the form data for you and put it into the parameter array. If you
are
getting a null from the call to getParameter(), double check your HTML.
____________________________ S�parateur R�ponse
________________________________
Objet : Getting Input Data from a Form.
Auteur : "A mailing list for discussion about Sun Microsystem's Java
Servlet
API Technology." <[EMAIL PROTECTED]>
Date : 21/05/99 11:45
Hi to all!!
When i get user input data from a form by using :
public void doPost(HttpServletRequest req, HttpServletResponse res) throws
ServletException, java.io.IOException
{
...
ServletOutputStream out = res.getOutputStream();
Hashtable postedData =
HttpUtils.parsePostData(req.getContentLength(),req.getInputStream());
String sn = (String) postedData.get("SN");
out.print(SN);
....
}
I get the error
java.lang.ClassCastException: java.lang.Object
when I submit the data.
The "SN" is the name of a text-box that allows user input, in a HTML Form.
I have confirm that the value associated with the key "SN" is a String, by
doing :
...
Object sn = postedData.get("SN");
out.print( sn.getClass().getName().);
...
I don't see were the problem is since the method "get" from Hastable
returns
an Object, and String is a subclass of Object.
Maybe it as something to do with the classloader of the servlet?
Does anyone know whats's the problem?
Tanks in advance,
RJCampos.
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