/*
*To get access to Request Parameters use one of the following syntaxes where test is the request property
*/
${RequestParameters['test']}
or 
${RequestParameters.test}

/*
*to get access to Request Attributes use one of the following where test is the request attribute
*/
${Request['test']}
or 
${Request.test}

http://forum.springframework.org/showthread.php?t=32846

The Request and RequestParameters are two Hashes provided by freemarker, it will be available in all templates

Getting HTTP Request properties and attributes in freemarker template

Other