Spring MVC 3.x annotated controller的几点心得体会

    @RequestMapping(method = POST)
    @ModelAttribute
    @ResponseStatus(HttpStatus.CREATED)
    public MyResponse hello(@Valid MyRequest request) throws MyException {
        myService.hello(request);

        return new MyResponse();
    }

    @Override
    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
        MyResponse myResponse = new MyResponse();
        return new ModelAndView("error").addObject(myResponse);
    }

	<!-- 
		Resolves logical view names returned by Controllers to Tiles; 
		a view name to resolve is treated as the name of a tiles definition 
	-->
	<bean id="tilesViewResolver" class="org.springframework.js.ajax.AjaxUrlBasedViewResolver">
		<property name="viewClass" value="org.springframework.webflow.mvc.view.FlowAjaxTilesView"/>
	</bean>

	<!-- Configures the Tiles layout system -->
	<bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
		<property name="definitions">
			<list>
				<value>/WEB-INF/**/tiles-defs.xml</value>
			</list>
		</property>
	</bean>	

@Controller
@RequestMapping(value = "/hotels")
public class HotelsController extends AbstractController {
...
	@RequestMapping(value = "/search", method = RequestMethod.GET)
	public void search(WebRequest request, Principal currentUser,
			Model model) {
		if (currentUser != null) {
			List<Booking> booking = bookingService.searchBookingsByUser(currentUser.getName());
			model.addAttribute(booking);
		}
	}
...
}

@Controller
@RequestMapping(value = "/hotels")
public class HotelsController extends AbstractController {
...
	@RequestMapping(value = "/{id}", method = RequestMethod.GET)
	public String show(@PathVariable long id, Model model) {
		model.addAttribute(hotelService.findHotelById(id));
		return "hotels/show";
	}
...
}

<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
  <property name="exceptionMappings">
    <props>
	<prop key="com.nec.asia.nric.framework.acl.AccessDeniedException">login</prop>
    </props>
  </property>
</bean>

public class AclInterceptor extends HandlerInterceptorAdapter {
...
	@Override
	public boolean preHandle(HttpServletRequest request,
			HttpServletResponse response, Object handler) throws Exception {
		if(...){
		  ...
		}else{
		  response.sendRedirect(ANOTHER_PAGE);
		  return false;
		}
		return true;
	}
...
}

<form:form modelAttribute="hotel" action="${hotelsUrl}" method="POST">
  <form:input id="name" path="name"/>
</form:form>

@RequestMapping(method = RequestMethod.POST)
public String list(Hotel hotel,Model model) {
...
}

public class MutipleModelWrapper {
	private Hotel hotel;
	private Booking booking;
	
	public Hotel getHotel() {
		return hotel;
	}
	public void setHotel(Hotel hotel) {
		this.hotel = hotel;
	}
	public Booking getBooking() {
		return booking;
	}
	public void setBooking(Booking booking) {
		this.booking = booking;
	}
}

<form:form modelAttribute="mutipleModelWrapper" action="${hotelsUrl}" method="POST">
  <form:input id="name" path="hotel.name"/>
  <form:input id="name" path="booking.xxx"/>
</form:form>