urlrewriting tuckey using Tuckey - spring

Question

My project (we have Spring 3) needs to rewrite URLs from the form
localhost:8888/testing/test.htm?param1=val1&paramN=valN
to
localhost:8888/nottestinganymore/test.htm?param1=val1&paramN=valN
My current rule looks like:
<from>^/testing/(.*/)?([a-z0-9]*.htm.*)$</from>
<to type="passthrough">/nottestinganymore/$2</to>
But my query parameters are being doubled, so I am getting param1=val1,val1 and paramN=valN,valN...please help! This stuff is a huge pain.
To edit/add, we have use-query-string=true on the project and I doubt I can change that.

Answer 1

The regular expression needs some tweaking. Tuckey uses the java regular expression engine unless specified otherwise. Hence the best way to deal with this is to write a small test case that will confirm if your regular expression is correct. For e.g. a slightly tweaked example of your regular expression with a test case is below.
#Test public void testRegularExpression()
{
String regexp = "/testing/(.*)([a-z0-9]*.htm.*)$";
String url = "localhost:8888/testing/test.htm?param1=val1&paramN=valN";
Pattern pattern = Pattern.compile(regexp);
Matcher matcher = pattern.matcher(url);
if (matcher.find())
{
System.out.println("$1 : " + matcher.group(1) );
System.out.println("$2 : " + matcher.group(2) );
}
}
The above will print the output as follows :
$1 : test
$2 : .htm?param1=val1&paramN=valN
You can modify the expression now to see what "groups" you want to extract from URL and then form the target URL.