orderformcontroller.java

这是基于spring +hibernate的项目

package com.pure.web.spring;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.ModelAndViewDefiningException;
import org.springframework.web.servlet.mvc.AbstractWizardFormController;

import com.pure.domain.Cart;
import com.pure.domain.Member;
import com.pure.domain.logic.MemberFacade;
import com.pure.domain.logic.OrderFacade;
import com.pure.util.PureUtil;

public class OrderFormController extends AbstractWizardFormController {
	private MemberFacade memberFacade;

	private OrderFacade orderFacade;

	public OrderFacade getOrderFacade() {
		return orderFacade;
	}

	public void setOrderFacade(OrderFacade orderFacade) {
		this.orderFacade = orderFacade;
	}

	public OrderFormController() {
		setCommandName("orderForm");
		setPages(new String[] { "NewOrderForm", "viewOrder" });
	}

	public MemberFacade getMemberFacade() {
		return memberFacade;
	}

	public void setMemberFacade(MemberFacade memberFacade) {
		this.memberFacade = memberFacade;
	}

	/**
	 * 初始化订单
	 * 
	 * @param rquest
	 */
	protected Object formBackingObject(HttpServletRequest request)
			throws ModelAndViewDefiningException {
		MemberSession memberSession = (MemberSession) request.getSession()
				.getAttribute("memberSession");
		Cart cart = (Cart) request.getSession().getAttribute("sessionCart");
		if (cart != null) {
			Member member = this.memberFacade.getMemberForName(memberSession.getMebmer().getUsername());
			OrderForm orderForm = new OrderForm();
			orderForm.getOrder().initOrder(member, cart);
			return orderForm;
		} else {
			/*ModelAndView modelAndView = new ModelAndView("Error");
			modelAndView.addObject("message", "生成订单失败,原因是购物车中没有菜品。");*/
			ModelAndView modelAndView = new ModelAndView("index");
			throw new ModelAndViewDefiningException(modelAndView);
		}
	}

	protected Map referenceData(HttpServletRequest request, int page) {
		if (page == 0) {
			List creditCardTypes = new ArrayList();
			creditCardTypes.add("Visa");
			creditCardTypes.add("MasterCard");
			creditCardTypes.add("American Express");
			Map model = new HashMap();
			model.put("creditCardTypes", creditCardTypes);
			return model;
		}
		return null;
	}

	/**
	 * 向导结束
	 */
	protected ModelAndView processFinish(HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors) {
		OrderForm orderForm = (OrderForm) command;
		orderForm.getOrder().setOrderDate(PureUtil.getDateFormatStr("yyyy-MM-dd HH:mm:ss"));
		orderForm.getOrder().setShingInfo(orderForm.getOrder().getMember());
		this.orderFacade.insertOrder(orderForm.getOrder());
		
		request.getSession().removeAttribute("sessionCart");
		Map model = new HashMap();
		model.put("orderForm",orderForm);
		model.put("message", "Thank you, your order has been submitted.");
		return new ModelAndView("viewOrder", model);
	}

}