请教spring mvc 参数问题

@Controller
public class BaseController {
@RequestMapping("/base")
@ResponseBody
public Object delete(OptionData data) {
return baseService.update(data);

}
}

public class OptionData
{
private string id;
private string name;
private HttpSession session;



public void setId(String id) {
this.id= id;
}

public String getId() {
return id;
}

public void setName(String name) {
this.name= name;
}

public String getName() {
return name;
}
public String getSession() {
return session;
}
public void setSession(HttpSession session) {
this.session = session;
}
}
请教, public Object delete(OptionData data) {
return baseService.update(data);

} 中,OptionData 里Sessoin怎么能自动取到值