package?com.feicui.controller;

import?java.util.HashMap;
import?java.util.Map;
import?java.util.Set;

import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpSession;

import?org.springframework.beans.factory.annotation.Autowired;
import?org.springframework.stereotype.Controller;
import?org.springframework.web.bind.annotation.RequestMapping;
import?org.springframework.web.bind.annotation.ResponseBody;

import?com.feicui.model.Products;
import?com.feicui.service.ProductService;
import?com.feicui.utils.ProductUtils;

@Controller
public?class?CartController?{
	@Autowired
	private?ProductService?service;
	//顯示購物車頁面
	@RequestMapping（“showCart“）
	public?String?showCart（）{
		return?“cart“;
	}

	//加入購物車
	@RequestMapping（“addCart“）
	@ResponseBody
	public?String?addCart（String?idHttpServletRequest?request）{
		//獲取到加入購物車的商品
		Products?product?=?null;
		HttpSession?session?=?request.getSession（）;
		
		
		//先從session中獲取購物車對象
		Map?cart?=?（Map）?session.getAttribute（“cart“）;
		if（cart?==?null）{
			//定義一個map集合作為購物車
			cart?=?new?HashMap（）;
			product?=?service.findProductById（id）;
			cart.put（product?1）;
		}else{
			
			//判斷加入購物車的商品，在購物車中是否存在
			Set?keySet?=?cart.keySet（）;
			product?=?ProductUtils.findProduct（keySet?id）;
			
			if（product?==?null）{
				product?=?service.findProductById（id）;
				cart.put（product?1）;
			}else{
				cart.put（product?cart.get（product）+?1）;
			}
		}
		
		
		//將購物車對象放到session中
		session.setAttribute（“cart“?cart）;
		
		
		return?“{\“msg\“:\“true\“}“;
	}
	
	//修改購物車信息
	@RequestMapping（“updateCart“）
	public?String?updateCart（String?idInteger?countHttpServletRequest?request）{
		//獲取購物車對象
		HttpSession?session?=?request.getSession（）;
		Map?cart?=?（Map）?session.getAttribute（“cart“）;
		
		Set?keySet?=?cart.keySet（）;
		
		Products?product?=?ProductUtils.findProduct（keySet?id）;
		
		cart.put（product?count）;
		
		if（count?==?0）{
			cart.remove（product）;
		}
		
		session.setAttribute（“cart“?cart）;
		
		
		return?“redirect:showCart“;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-07-15?21:36??JavaEE圖書商城項目\
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\
?????文件????????6452??2018-07-15?14:28??JavaEE圖書商城項目\bookshopping.sql
?????文件?????????706??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\.classpath
?????文件????????1253??2018-07-02?10:42??JavaEE圖書商城項目\bookshopping\.project
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\.settings\
?????文件?????????567??2018-07-02?09:50??JavaEE圖書商城項目\bookshopping\.settings\.jsdtscope
?????文件??????????81??2018-07-03?10:36??JavaEE圖書商城項目\bookshopping\.settings\org.eclipse.core.resources.prefs
?????文件?????????364??2018-07-02?09:50??JavaEE圖書商城項目\bookshopping\.settings\org.eclipse.jdt.core.prefs
?????文件?????????565??2018-07-02?10:34??JavaEE圖書商城項目\bookshopping\.settings\org.eclipse.wst.common.component
?????文件?????????345??2018-07-02?09:50??JavaEE圖書商城項目\bookshopping\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2018-07-02?09:50??JavaEE圖書商城項目\bookshopping\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2018-07-02?09:50??JavaEE圖書商城項目\bookshopping\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????文件?????????591??2018-07-08?16:00??JavaEE圖書商城項目\bookshopping\.springBeans
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\classes\
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\classes\com\
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\controller\
?????文件????????3067??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\controller\CartController.class
?????文件????????1911??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\controller\IndexController.class
?????文件????????3766??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\controller\OrderController.class
?????文件????????4034??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\controller\ProductController.class
?????文件????????6229??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\controller\UsersController.class
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\dao\
?????文件?????????184??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\dao\OrderItemMapper.class
?????文件?????????323??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\dao\OrdersMapper.class
?????文件?????????918??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\dao\ProductMapper.class
?????文件?????????547??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\dao\UsersMapper.class
?????目錄???????????0??2018-07-15?14:29??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\filter\
?????文件????????4207??2018-07-14?23:48??JavaEE圖書商城項目\bookshopping\build\classes\com\feicui\filter\AutoLoginFilter.class
............此處省略568個文件信息