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Posted by noah on 12/04/06 04:50
For reference. It was in fact the XML syntax screwing this up. A
solution which worked for me.
Write a small javascript function to wrap the entire contents of the
text area in a CDATA tag and then submit the form. EG:
function doSubmit() {
var xml = document.getElementByName("xml").value;
xml = "<![CDATA[" + xml + "]]>";
document.getElementByName("xml").value = xml;
document.getElementById("form").submit();
}
Then, simply override the submit buttons onclick to call the javascript
function.
<input type="submit" onclick="javascript:doSubmit(); return true;">
A CDATA tag tells most parsers to totally ignore anything inbetween. So
all the special chars in the XML are are ignored, and don't mess up the
transmission.
noah
noah wrote:
> Hi,
>
> Thanks for the quick responses. I should have been more clear about the
> submit.
>
> I have simple java servlet (a Sping FrameworkServlet) running on a
> tomcat app server. It does some basic processing of the HttpRequest.
>
> The behavior I am seeing is, I can type a basic string in the textarea,
> e.g. "Helllo", and click submit. Debugging the servlet on the server I
> can see the request come in fine, with the 'Hello' string set as the
> value on my parameter named 'xml'.
>
> However, if I then repeat the test but place XML formed data, e.g. :
> <?xml version="1.0" encoding="ISO-8859-1"?>
> <note>
> <to>Jim</to>
> <from>Bob</from>
> <body>Don't forget this weekend!</body>
> </note>
>
> The form does not seem to submit. I do not catch the HttpRequest on the
> server.
>
> If an HTML textarea does indeed submit precisely what is pasted, then
> my problem may lay elsewhere. My first hunch though was that the
> problem was on the browser/html side.
>
> Thx,
> Noah
>
>
>
>
>
> Harlan Messinger wrote:
> > noah wrote:
> > > My user needs to cut and paste XML and submit it using a simple HTML
> > > form.
> > >
> > > I have created a textarea:
> > >
> > > <textarea rows="10" cols="60" name="xml">
> > > </textarea>
> > >
> > > The problem is the special characters in the XML mess up the submit. I
> > > need everything pasted to this textarea to be treated like CDATA (I
> > > think), or somehow full escaped.
> >
> > Can you be more clear than "mess up the submit"? What is the actual
> > error that's occurring? Characters like <, >, ', ", etc. work just fine
> > in forms. The most likely problem that comes to mind is that you're
> > trying to put the data into a database by building a query string in
> > your application like
> >
> > sql = "insert into T (xml) values ('" + xmlInput + "')";
> >
> > and the input data has apostrophes (single quotes) in it that need to be
> > escaped to keep the SQL engine from treating them as delimiters in the
> > query.
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