package org.whatisjava.dang.service;
import java.io.Serializable;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.whatisjava.dang.domain2.CartItem;
import org.whatisjava.dang.domain2.Product;
import org.whatisjava.dang.domain2.User;
import org.whatisjava.dang.form.CartForm;
public class CartService implements Serializable {
private static final long serialVersionUID = 1L;
private User user;
private ProductService ps = new ProductService();
private Map<Integer, CartItem> cartItems = new HashMap<Integer, CartItem>();
private boolean haveDelItem = false;
public CartService(User user) {
this.user = user;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public int getSize() {
return cartItems.size();
}
public boolean addCartItem(CartForm cf) {
if (cartItems.containsKey(cf.getId()))
return false;
Product p = ps.findProductForCartItem(cf.getId());
CartItem item = new CartItem();
item.setProduct(p);
item.setNum(cf.getNum());
item.setDrop(false);
cartItems.put(item.getProduct().getId(), item);
return true;
}
public void updateItemNum(int id, int num) {
CartItem c = cartItems.get(id);
c.setNum(num);
}
public void deleteItem(int id) {
CartItem c = cartItems.get(id);
c.setDrop(true);
haveDelItem = true;
}
public void refreshItem(int id) {
CartItem c = cartItems.get(id);
c.setDrop(false);
}
public double getTotalPrice() {
double count = 0;
Set<Integer> key = cartItems.keySet();
CartItem c = null;
for (Integer i : key) {
c = cartItems.get(i);
if (c.isDrop())
continue;
count += c.getProduct().getFixedPrice() * c.getNum();
}
return count;
}
public double getTotalDangPrice() {
double count = 0;
Set<Integer> key = cartItems.keySet();
CartItem c = null;
for (Integer i : key) {
c = cartItems.get(i);
if (c.isDrop())
continue;
count += c.getProduct().getDangPrice() * c.getNum();
}
return count;
}
public List<CartItem> getBuyItem() {
return getItem(false);
}
public List<CartItem> getDelItem() {
return getItem(true);
}
private List<CartItem> getItem(boolean flag) {
Set<Integer> key = cartItems.keySet();
List list = new ArrayList<CartItem>();
CartItem c = null;
for (Integer i : key) {
c = cartItems.get(i);
if (c.isDrop() != flag)
continue;
list.add(c);
}
return list;
}
public void clearDelItem() {
if (haveDelItem) {
Set<Integer> key = cartItems.keySet();
CartItem c = null;
Iterator it=key.iterator();
Integer i=null;
while(it.hasNext()){
c = cartItems.get(i=(Integer)it.next());
if (c.isDrop())
it.remove();
}
haveDelItem=false;
}
}
public String serialize() {
Set<Integer> key = cartItems.keySet();
CartItem c = null;
StringBuilder sb = new StringBuilder();
if (cartItems.size() != 0)
for (Integer i : key) {
c = cartItems.get(i);
sb.append(user.getId() + ",").append(
c.getProduct().getId() + ",").append(c.getNum() + ",")
.append(c.isDrop() + ";");
}
return sb.toString();
}
public void deCode(String serialize) {
String[] root = serialize.split(";");
String[] child = null;
for (String s : root) {
child = s.split(",");
if (child.length != 4)
continue;
if (!user.getId().equals(Integer.parseInt(child[0])))
break;
CartItem c = new CartItem();
c.setProduct(ps.findProductForCartItem(Integer.parseInt(child[1])));
c.setNum(Integer.parseInt(child[2]));
c.setDrop(Boolean.parseBoolean(child[3]));
cartItems.put(c.getProduct().getId(), c);
}
}
}
电子商务系统代码（当当网）_java可作毕业设计
3星 · 超过75%的资源 需积分: 10 140 浏览量
2009-05-18
22:34:35
上传
评论 2
收藏 8.74MB RAR 举报 
电子商务系统代码（当当网）_java可作毕业设计 （563个子文件） 
CartService.class 6KB RegisterAction.class 5KB Order.class 4KB Test4.class 4KB BookService.class 4KB ControlCartAction.class 4KB Product.class 4KB ImageAction.class 3KB Book.class 3KB LoginAction.class 3KB Category.class 3KB BookDAOImpl.class 3KB UserForm.class 3KB CatalogService.class 3KB CommentDAOImpl.class 3KB Comment.class 3KB User.class 3KB ShowCartAction.class 3KB BookList.class 3KB AuthorizeService.class 2KB ProductDAOImpl.class 2KB Address.class 2KB UserDAOImpl.class 2KB CookieUtils.class 2KB CategoryDAOImpl.class 2KB OrderDAOImpl.class 2KB LoginUtil.class 2KB ReplyDAOImpl.class 2KB LogOutAction.class 2KB List.class 2KB AddressDAOImpl.class 2KB ValidateImgcode.class 2KB CommentService.class 2KB DaoFactory.class 2KB SendWay.class 2KB Item.class 2KB SendWayDAOImpl.class 2KB ShoppingController.class 2KB ValidateEmail.class 2KB Category.class 2KB CommentReply.class 2KB Test3.class 2KB AllCategory.class 1KB OrderService.class 1KB LoginInfoAction.class 1KB Test2.class 1KB CartItem.class 1KB LoginOkAction.class 1KB MD5Utils.class 1KB LoginFormAction.class 1003B HbnUtil.class 996B Recommend.class 985B Main.class 970B Hot.class 967B New.class 967B Test1.class 909B UUIDUtils.class 837B ProductService.class 824B CartForm.class 754B Subtract.class 705B DaoException.class 608B EmailUtils.class 501B CommentDAO.class 435B Constants.class 434B UserDAO.class 430B BookDAO.class 425B ProductDAO.class 391B CategoryDAO.class 384B ReplyDAO.class 325B AddressDAO.class 322B SendWayDAO.class 315B OrderDAO.class 274B .classpath 3KB org.eclipse.wst.jsdt.ui.superType.container 49B book.css 25KB second.css 20KB register_login.css 14KB book_head090107.css 13KB login.css 13KB list.css 10KB shopping_vehicle.css 9KB shopping_head.css 5KB booksaleslist.css 5KB page_bottom.css 3KB public_footer.css 2KB research.css 2KB secBook_Show.css 1KB navi.css 1KB pubsug090107.css 555B Thumbs.db 45KB Thumbs.db 34KB Thumbs.db 14KB Thumbs.db 12KB Thumbs.db 7KB Thumbs.db 6KB Thumbs.db 4KB Thumbs.db 4KB
ancz081216_button05.gif 25KB xssj_banner.gif 8KB d_introduce.gif 5KB共 563 条
- 1
- 2
- 3
- 4
- 5
- 6
资源评论
我说Never2014-11-24看似很美好，很NB- li20032013-05-20还可以吧，初学都可以看看
chen452572112013-05-31eclipse直接导入不可用
