你为什么不script来写
<script language="javascript">
function get_Parameter(value)
{
var result = "";
if(request.getParameter(value)!=null)
result = request.getParameter(value).trim();
return result;
}
</script>
public class Browser(){
public static String getString(HttpRequst request,String pname){
String result = "";
if(request.getParameter(value)!=null)
result = request.getParameter(value).trim();
return result;
}