shopName不显示

相关代码：

OrderConfirmation.vue

<template>
  <div class="wrapper">
    <div class="top">
      <div class="top__bgcor" />
      <div class="top__header">
        <div class="iconfont top__header__back">&#xe6db;</div>
        确认订单
      </div>
      <div class="top__receiver">
        <div class="top__receiver__title">收货地址</div>
        <div class="top__receiver__address">
          北京理工大学国防科技园2号楼10层
        </div>
        <div class="top__receiver__info">
          <span class="top__receiver__info__name">瑶妹（先生）</span>
          <span class="top__receiver__info__phone">18911024266</span>
        </div>
        <div class="iconfont top__receiver__icon">&#xe6db;</div>
      </div>
    </div>
    <div class="products">
      <div class="products__title">{{shopName}}</div>
      <div class="products__item" v-for="item in productList" :key="item._id">
        <img :src="item.imgUrl" class="products__item__img" />
        <div class="products__item__detail">
          <h4 class="products__item__title">{{ item.name }}</h4>
          <p class="products__item__price">
            <span>
              <span class="products__item__yen">&yen;</span>
              {{ item.price }} x {{ item.count }}
            </span>
            <span class="products__item__total">
              <span class="products__item__yen">&yen;</span>
              {{ item.price * item.count }}
            </span>
          </p>
        </div>
      </div>
    </div>
    <div class="cart">
      <div class="check">
        <div class="check__info">
          实付金额<span class="check__info__price"> &yen;62</span>
        </div>
        <div class="check__btn">提交订单</div>
      </div>
    </div>
  </div>
</template>
<script>
import { useRoute } from "vue-router";
import { useCommonCartEffect } from "../../effects/cartEffect";
export default {
  name: "OrderConfirmation",
  components: {},
  setup() {
    const route = useRoute();
    const shopId = route.params.id;
    const { productList,shopName } = useCommonCartEffect(shopId);
    return { productList ,shopName};
  },
};
</script>
<style lang="scss" scoped>
@import "../../style/viriables.scss";
@import "../../style/mixins.scss";
.wrapper {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: #eee;
}
.top {
  position: relative;
  height: 1.96rem;
  background-size: 100% 1.59rem;
  background-image: linear-gradient(
    0deg,
    rgba(0, 145, 255, 0) 4%,
    $btn-bgColor 50%
  );
  background-repeat: no-repeat;
  &__header {
    position: relative;
    padding-top: 0.26rem;
    line-height: 0.24rem;
    color: $bgColor;
    text-align: center;
    font-size: 0.16rem;
    &__back {
      position: absolute;
      left: 0.18rem;
      font-size: 0.22rem;
    }
  }
  &__receiver {
    position: absolute;
    bottom: 0;
    left: 0.18rem;
    right: 0.18rem;
    background: $bgColor;
    border-radius: 0.04rem;
    padding: 0.16rem;
    &__title {
      color: $content-fontcolor;
      font-size: 0.16rem;
      font-weight: bold;
      line-height: 0.22rem;
    }
    &__address {
      color: $content-fontcolor;
      font-size: 0.14rem;
      margin: 0.14rem 0 0.06rem 0;
      line-height: 0.2rem;
    }
    &__info {
      color: $medium-fontColor;
      font-size: 0.12rem;
      line-height: 0.18rem;
      &__name {
        margin-right: 0.06rem;
      }
    }
    &__icon {
      transform: rotate(180deg);
      position: absolute;
      right: 0.16rem;
      top: 0.47rem;
      color: $medium-fontColor;
      font-size: 0.2rem;
    }
  }
}
.products {
  margin: 0.16rem 0.18rem 0.55rem 0.18rem;
  background: $bgColor;
  &__title {
    padding:.16rem .16rem 0 .16rem;
    font-size: 0.16rem;
    color: $content-fontcolor;
  }
  &__item {
    position: relative;
    display: flex;
    padding: 0.16rem;
    &__detail {
      flex: 1;
    }
    &__img {
      width: 0.46rem;
      height: 0.46rem;
      margin-right: 0.16rem;
    }
    &__title {
      margin: 0;
      line-height: 0.2rem;
      font-size: 0.14rem;
      color: $content-fontcolor;
      @include ellipsis;
    }
    &__price {
      display: flex;
      margin: 0.06rem 0 0 0;
      line-height: 0.2rem;
      font-size: 0.14rem;
      color: $hightlight-fontColor;
    }
    &__total {
      flex: 1;
      text-align: right;
      color: #000;
    }
    &__yen {
      font-size: 0.12rem;
    }
  }
}
.cart {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  background: $bgColor;
  box-shadow: 0 -0.01rem 1rem 0 $content-bgcolor;
  z-index: 2;
}
.check {
  display: flex;
  &__info {
    flex: 1;
    font-size: 0.14rem;
    color: $content-fontcolor;
    line-height: 0.2rem;
    margin: 0.15rem 0 0.15rem 0.24rem;
    &__price {
      font-size: 0.16rem;
      color: $content-fontcolor;
      line-height: 0.22rem;
      font-weight: bold;
    }
  }
  &__btn {
    width: 0.98rem;
    line-height: 0.5rem;
    font-size: 0.14rem;
    background: #4fb0f9;
    text-align: center;
    color: $bgColor;
  }
}
</style>

cartEffect.js

相关代码：

import {computed} from 'vue'
import {useStore} from 'vuex';
 // 购物车相关逻辑
 export const useCommonCartEffect=(shopId)=>{
    const store = useStore()
    const cartList = store.state.cartList
    const changeCartItemInfo=(shopId,productId,productInfo,num)=>{
        store.commit('changeCartItemInfo',{
            shopId,productId,productInfo,num
        })
    }
    const productList = computed(()=>{
        const productList = cartList[shopId]?.productList || []
        return productList
    })
    const shopName = computed(()=>{
        const shopName = cartList[shopId]?.shopName || ''
        console.log(shopName)
        console.log(shopId)
        console.log(cartList)
        return shopName
    })
    return{changeCartItemInfo,shopName,productList,cartList}
}

store 里的index.js

相关代码：

import { createStore } from 'vuex'
const setLocalCartList = (state)=>{
  const {cartList} = state
  const cartListString = JSON.stringify(cartList)
  localStorage.cartList = cartListString
}
const getLocalCartList = () =>{
  // try{
  //   return JSON.parse(localStorage.cartList)
  // }catch(e){
  //   return {}
  // }
  if(localStorage.cartList){
    return JSON.parse(localStorage.cartList)
  }else{
    return {}
  }
}

export default createStore({
  state: {
    // shopId:{
        // shopName:'沃尔玛',
        // productList:{
            //   productId:{
            //     _id:'1',
            //     name:'番茄250g/份',
            //     ingUrl:'http://www.dell-lee.com/imgs/vue3/tomato.png',
            //     sales:10,
            //     price:33.6,
            //     oldPrice:39.6,
            //     count:2
            //   },
        // }
     
      // },
  cartList:getLocalCartList()
  },
  getters: {
  },
  mutations: {
    changeCartItemInfo(state,payload){
      //根据传入的参数，获取到商铺的id、商品id、商品详细信息等数据
      const {shopId,productId,productInfo} = payload
      //通过shopId（商铺的id）获取state.cartList中对应的数据
      let shopInfo = state.cartList[shopId]
      //如果state.cartList里面没有任何数据，就将其设置为空对象
      if(!shopInfo){shopInfo={
        shopName:'',productList:{}
      }}
      //再根据productId（商品id）获取对应的商品详细信息
      let product =shopInfo.productList[productId]
      //如果获取到的商品信息为空
      if(!product){
        //就将传入的商品信息赋值给product
        product =productInfo
        //添加count属性初始化为0
        product.count=0
      }
      //如果获取到对应的商品信息，那么就将count属性值在原来基础上加num
      product.count=product.count+payload.num
      //如果点加号，那就是选中状态
      if(payload.num > 0){product.check = true}
      //如果count的值小于0，则让count等于0
      if(product.count<0){product.count=0}
      //改变后数据重新赋值，添加到state下的cartList中
      shopInfo.productList[productId] = product
      state.cartList[shopId]=shopInfo
      setLocalCartList(state)
    },
    changeShopName(state,payload){
      const {shopId,shopName} = payload
      const shopInfo = state.cartList[shopId] || {
        shopName:'',productList:{}
      }
      shopInfo.shopName = shopName
      state.cartList[shopId] = shopInfo
      setLocalCartList(state)
    },
    changeCartItemChecked(state,payload){
      const {shopId,productId,productInfo} = payload
      const product = state.cartList[shopId].productList[productId]
      product.check=!product.check
      setLocalCartList(state)
    },
    cleanCartProducts(state,payload){
      const {shopId} = payload
      state.cartList[shopId].productList = {}
      setLocalCartList(state)
    },
    setCartItemsChecked(state,payload){
      const {shopId} = payload
      const products = state.cartList[shopId].productList
      if(products){
        for(let key in products){
          const product = products[key]
          product.check = true
        }
      }
      setLocalCartList(state)
    },
  },
  actions: {
  },
  modules: {
  }
})

相关截图：