methods:{
  cartview:function(){
   var _this = this;
   this.$http.get("data/cartData.json").then(function(res){
    _this.productList = res.result.list;
    _this.totalMoney = res.result.totalMaoney;
   });
  }
 }

methods:{
  cartview:function(){
   var _this = this;
   this.$http.get("data/cartData.json").then(function(res){
    _this.productList = res.data.result.list;
    _this.totalMoney = res.data.result.totalMaoney;
   });
  }
 }

{
 "status":1,
 "result":{
 "totalMoney":109,
 "list":[
  {
  "productId":"600100002115",
  "productName":"黄鹤楼香烟",
  "productPrice":19,
  "productQuantity":1,
  "productImage":"img/goods-1.jpg",
  "parts":[
   {
   "partsId":"10001",
   "partsName":"打火机",
   "imgSrc":"img/part-1.jpg"
   },
   {
   "partsId":"10002",
   "partsName":"打火机",
   "imgSrc":"img/part-1.jpg"
   }
  ]
  },
  {
  "productId":"600100002120",
  "productName":"加多宝",
  "productPrice":8,
  "productQuantity":5,
  "productImage":"img/goods-2.jpg",
  "parts":[
   {
   "partsId":"20001",
   "partsName":"吸管",
   "imgSrc":"img/part-2.jpg"
   }
  ]
  },
  {
  "productId":"600100002117",
  "productName":"金装黄鹤楼",
  "productPrice":25,
  "productQuantity":2,
  "productImage":"img/goods-1.jpg",
  "parts":[
   {
   "partsId":"10001",
   "partsName":"打火机-1",
   "imgSrc":"img/part-1.jpg"
   },
   {
   "partsId":"10002",
   "partsName":"打火机-2",
   "imgSrc":"img/part-1.jpg"
   }
  ]
  }
 ]
 },
 "message":""