vue.js中如何获取url的值

const router = new VueRouter({
    routes: [
        {
            path: '/goodsinfo/:goodsId',
            component: goodsinfo
        },
    ]
})

<template>
<div>
<router-link :to="'/goodsinfo/'+ subitem.artID"  class="">
    <div class="img-box">
        <img  v-lazy =subitem.img_url>
    </div>
    <div class="info">
        <h3>{{subitem.artTitle}}</h3>
        <p class="price">
            <b>{{subitem.sell_price}}</b>元</p>
        <p>
            <strong>库存 {{subitem.stock_quantity}}</strong>
            <span>市场价：
                <s>{{subitem.market_price}}</s>
            </span>
        </p>
    </div>
</router-link>
</div>
</template>

    // 获得商品评论数据
    getCommentByPage() {
      const url = `site/comment/getbypage/goods/${
        this.$route.params.goodsId
      }?pageIndex=${this.pageIndex}&pageSize=${this.pageSize}`;
      this.$axios.get(url).then(
        res => {
          this.comment = res.data;
        },
        err => {
          console.log(err);
        }
      );
    },