How can i pass my request-parameter to my servlet

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Title: How can i pass my request-parameter to my servlet

Hello all,
How can i pass my request-parameter to my servlet

example
 I send this request http://c2.mydomain.com/path/test.xml?pa=0&pb=1&pc=2
 I want get xml file from servlet http://myservletserver/myservlet?pa=0&pb=1&pc=2
 and use a xsl to transform it into html

my sitemap.xmap

.......
<map:match pattern="/path/test.xml*">
    <map:generate src=""http://myservletserver/myservlet?pageno={1}"/>
    <map:transform src=""stylesheets/news/slashdot.xsl"/>
    <map:serialize/>
   </map:match>

it cannot work
how can i do ?
Thanks