一个Action中，可以写多个类似的业务控制方法

@Controller
@RequestMapping(value="/user")
public class UserAction{
    @RequestMapping(value="/add")
    public String add(Model model) throws Exception{
        System.out.println("HelloAction::add()");
        model.addAttribute("message","增加用户");
        return "/success.jsp";
    }
    @RequestMapping(value="/find")
    public String find(Model model) throws Exception{
        System.out.println("HelloAction::find()");
        model.addAttribute("message","查询用户");
        return "/success.jsp";
    }    
}