I found the solution by my own
you just have to set the object in pagecontext.setattribute(String arg0, Object arg1)
then <html:link action="......" paramid="XXX" paramName="String arg0"/>
you can retrieve this parameter in your action class as :
request.getParameter("XXX"/paramid);
here in code view:
<%String mail=sf.getEmailid();
pageContext.setAttribute("emailid",mail);%>
<html:link action="/information" onfocus="focus()" paramId="mailid" paramName="emailid" scope="request"><font color="#00FF00">
<%= sf.getEmailid() %></font></html:link></td>
<%}%>
here sf.getEmailid() is a String type Object which i have to pass as a parameter from a jsp to action class in link form.
hope you like this , and definetly it will work.