chem01- 添加商品到购物车

1.

package selleck.web.cart;

import java.io.InputStream;

import java.math.BigDecimal;

import java.sql.Timestamp;

import java.util.Date;

import java.util.List;

import java.util.Map;

import java.util.Set;

import javax.servlet.http.Cookie;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import lombok.Getter;

import lombok.Setter;

import org.apache.log4j.Logger;

import org.apache.struts2.ServletActionContext;

import selleck.Core.util.Constants;

import selleck.Core.util.MD5Maker;

import selleck.Core.web.SelleckActionSupport;

import selleck.model.attachment.dao.imp.AttachmentDAOImp;

import selleck.model.cart.dto.CartDTO;

import selleck.model.cart.service.CartService;

import selleck.model.country.dto.CountryDTO;

import selleck.model.country.service.CountryService;

import selleck.model.product.dto.ProductDTO;

import selleck.model.product.dto.SizeDTO;

import selleck.model.product.service.ProductService;

import selleck.model.product.service.SizeService;

import selleck.model.user.dto.UserDTO;

import com.opensymphony.xwork2.ActionContext;

@Setter @Getter

public class AddCartAction extends SelleckActionSupport {

	private static Logger logger = Logger.getLogger(AddCartAction.class);

    private Double shipFee;

    private Double shipFeeJudge;

    private CartService cartService;

    private CountryService countryService;

    private ProductService productService;

    private SizeService sizeService;

    private List<CartDTO> cartDTOs;

    private CountryDTO countryDTO;

    private InputStream is;

    public String addCart(){

        HttpServletRequest request = ServletActionContext.getRequest();

        HttpServletResponse response = ServletActionContext.getResponse();

        HttpSession httpSession = request.getSession();

        Map<String, Object> mapSession = ActionContext.getContext().getSession();

        shipFee = new Double(request.getServletContext().getInitParameter(Constants.FEE));

        shipFeeJudge = new Double(request.getServletContext().getInitParameter(Constants.FEEJUDGE));

        UserDTO user = (UserDTO)mapSession.get(Constants.SESSIONID);

        //1.判断有没有cookie存在

        Cookie[] cookies = request.getCookies();

        int j = 0;

        String sessionId = null;

        String countryCode = null;

        if ( null != cookies ) {

            for (int i = 0, len = cookies.length; i < len; i++) {

                Cookie c = cookies[i];

                if (c.getName().equals(cookieName)) { //cookieCartId

                    sessionId = c.getValue();

                    j++;

                }

                if (Constants.COUNTRYCODE.equals(c.getName())) {

                    countryCode = c.getValue();

                    j++;

                }

                if ( j >=2 && null != sessionId && null != countryCode) {

                    break;

                }

            }

            if ( j == 0) {

                Cookie cookie = new Cookie(cookieName, httpSession.getId());

                cookie.setMaxAge(360 *24*60 *60 *1000);

                cookie.setPath("/");

                response.addCookie(cookie);

            }

        }

        //2. 取国别

        if (countryCode == null) countryCode = getDefaultCountryCode();

        countryDTO = countryService.findByCode(countryCode);

        for (CartDTO cart : cartDTOs) {

            if ( null != user) cart.setUserId(user.getId());

            else {

                if ( null != sessionId){

                    cart.setSessionId(sessionId);

                } else {

                    cart.setSessionId(httpSession.getId());

                }

            }

            try{

                if ( null != cart.getQuantity() && cart.getQuantity() > 0) {

                    cart.setSizeId(cart.getSizeId());

                    cart.setCreateTime(new Timestamp(System.currentTimeMillis()));

                    SizeDTO sizeDTO = sizeService.findById(cart.getSizeId());

                    Double temprice = sizeDTO.getPrice(); //单价

                    if (temprice == 0) {logger.error("Product price is zero exception"); return FAIL;}

                    cart.setUnitPrice(temprice);

                    cart.setSubTotal(temprice * cart.getQuantity().intValue());

                    cartService.create(cart);

                }

            } catch (Exception e) {

                logger.error(e.toString());

            }

        }

        if ( null != user) {

            cartDTOs = cartService.list(user.getId());

        } else {

            cartDTOs = cartService.list(httpSession.getId());

        }

        return SUCCESS;

    }

}