2.1 后端控制层

实现思路：

（1）从 cookie 中取出购物车

（2）向购物车添加商品

（3）将购物车存入 cookie

pinyougou-cart-web 工程新建 CartController.java

[AppleScript] 纯文本查看 复制代码

@RestController
@RequestMapping("/cart")


public  class  CartController  {




@Reference


private  CartService  cartService;




@Autowired


private    HttpServletRequest  request;




@Autowired


private    HttpServletResponse  response;







/**

*购物车列表

*@param  request


*@return


*/ @RequestMapping("/findCartList")
public  List<Cart>  findCartList(){


String  cartListString  =  util.CookieUtil.getCookieValue(request, "cartList","UTF-8");

if(cartListString==null  ||  cartListString.equals("")){ cartListString="[]";

List<Cart>  cartList_cookie  =  JSON.parseArray(cartListString,  Cart.class);


return  cartList_cookie;

}




/**

*添加商品到购物车

*@param  request


*@param  response


*@param  itemId


*@param  num


*@return


*/ @RequestMapping("/addGoodsToCartList")
public  Result  addGoodsToCartList(Long  itemId,Integer  num){


try {

List<Cart>  cartList  =findCartList();//获取购物车列表
cartList  =  cartService.addGoodsToCartList(cartList,  itemId,  num); util.CookieUtil.setCookie(request,  response,  "cartList",
JSON.toJSONString(cartList),3600*24,"UTF-8");

return  new  Result(true,  "添加成功");

}  catch  (Exception  e)  { e.printStackTrace();
return  new  Result(false,  "添加失败");


}


}

浏览器测试：

查看购物车：http://localhost:9105/cart/findCartList.do 添加商品到购物车 ：

http://localhost:9105/cart/addGoodsToCartList.do?itemId=1369280&num=100

2.1 后端控制层

实现思路：

（1）从 cookie 中取出购物车

（2）向购物车添加商品

（3）将购物车存入 cookie

pinyougou-cart-web 工程新建 CartController.java

[AppleScript] 纯文本查看 复制代码

@RestController
@RequestMapping("/cart")


public  class  CartController  {




@Reference


private  CartService  cartService;




@Autowired


private    HttpServletRequest  request;




@Autowired


private    HttpServletResponse  response;







/**

*购物车列表

*@param  request


*@return


*/ @RequestMapping("/findCartList")
public  List<Cart>  findCartList(){


String  cartListString  =  util.CookieUtil.getCookieValue(request, "cartList","UTF-8");

if(cartListString==null  ||  cartListString.equals("")){ cartListString="[]";

List<Cart>  cartList_cookie  =  JSON.parseArray(cartListString,  Cart.class);


return  cartList_cookie;

}




/**

*添加商品到购物车

*@param  request


*@param  response


*@param  itemId


*@param  num


*@return


*/ @RequestMapping("/addGoodsToCartList")
public  Result  addGoodsToCartList(Long  itemId,Integer  num){


try {

List<Cart>  cartList  =findCartList();//获取购物车列表
cartList  =  cartService.addGoodsToCartList(cartList,  itemId,  num); util.CookieUtil.setCookie(request,  response,  "cartList",
JSON.toJSONString(cartList),3600*24,"UTF-8");

return  new  Result(true,  "添加成功");

}  catch  (Exception  e)  { e.printStackTrace();
return  new  Result(false,  "添加失败");


}


}

浏览器测试：

查看购物车：http://localhost:9105/cart/findCartList.do 添加商品到购物车 ：

http://localhost:9105/cart/addGoodsToCartList.do?itemId=1369280&num=100